DOE/ER/541 10-1
PFC/RR-92-1
Test Data From The US - Demonstration Poloidal Coil Experiment
T.A. Painter, M.M.Steeves, M.Takayasu, C. Gung, M.O.Hoenig*
H.Tsuji, T.Ando, T.Hiyama, Y.Takahashi, M.Nishi, K.Yoshida,
K.Okuno, H.Nakajima, T.Kato, M.Sugimoto, T.Isono,
K.Kawano, N.Koizumi, M.Osikiri, H.Hanawa, H.Ouchi, M.Ono,
H.Ishida, H.Hiue, J.Yoshida, Y.Kamiyauchi, T.Ouchi, F.Tajiri,
Y.Kon, H.Shimizu, Y.Matsuzaki, S.Oomori, T.Tani, K.Oomori,
T.Terakado, J.Yagyu, H.Oomori**
January 1992
*Plasma Fusion Center
Superconducting Magnet Development Group
Massachusetts Institute of Technology
Cambridge, Massachusetts 02139 USA
**The Japan Atomic Energy Research Institute
Superconducting Magnet Laboratory
Naka-machi, Naka-gun, Ibaraki-ken, Japan
This work was supported by the United States Department of Energy, contract no. DEFGO2-91-ER-541 10. Reproduction, translation, publication, use and disposal, in whole
or part, by or for the United States government is permitted.
Test Data From The US - Demonstration Poloidal Coil Experiment
by
Superconducting Magnet Development Group
MIT Plasma Fusion Center
and
The Japan Atomic Energy Research Institute
ABSTRACT
The US - Demonstration Poloidal Field Coil (US-DPC) experiment took place
successfully at the Japan Atomic Energy Research Institute (JAERI) in late 1990. The 8 MJ
niobium-tin coil was leak tight; it performed very well in DC tests; it performed well in AC
tests, achieving approximately 70% of its design goal. An unexpected ramp-rate barrier at
high currents was identified. The barrier could not be explored in the regime of higher
fields and slower ramp rates due to limitations of the background-field coils.
This document presents the results of the experiment with as little editing as possible.
The coil, conductor, and operating conditions are given. The intent is to present data in a
form that can be used by magnet analysts and designers.
This work was supported by the United States Department of
Energy, contract no. DE-FGO2-91-ER-54110.
Reproduction, translation, publication, use and disposal, in
whole or part, by or for the United States government is
permitted.
January 1992
US-DPC Test Report
page
Contents
1. Executive summary
......................................................................
1
2. Introduction
...............................................................................
3
3. Purpose
...............................................................................
3
.............................................................
4. Summary of experiment
4.1 Statistics ...............................................................................
4.2 Single-coil DC tests
.............................................................
...........................................
4.3 Series-coil DC tests (US+U1+U2)
.............................................................
4.4 Single-coil AC tests
4.5 Series-coil AC tests (US+U1 +U2)
...........................................
3
3
3
4
4
6
....................................................
5. Coil and test-mode specifications
...............................................................................
5.1 Wire
......................................................................
5.2 C onductor
5.3 C oil
...............................................................................
5.4 C oil stack
......................................................................
....................................................
5.5 Magnetic field distribution
......................................................
5.6 Flow
7
7
8
8
13
13
14
6. Thermal performance ......................................................................
6.1 Introduction
......................................................................
......................................................................
6.2 Cooldow n
....................................................
6.2.1 Cooldown weight
....................................................
6.2.2 Cooldown operation
6.2.3 Cooldown performance ....................................................
6.2.3.1 Cooldown performance curve
.........................
.......
6.2.3.2 Cooldown temperature control specifications
....................................................
6.3 Coil heat load measurements
6.3.1 Sensors and locations ....................................................
..................................
6.3.2 Coil heat load measurement results
...................................................
6.4 Pressure drop performance
6.4.1 Pressure drop performance measurements
.........................
6.4.2 Data arrangement
....................................................
6.4.3 Pressure drop performance results
................................
18
18
18
18
18
18
18
22
22
22
22
30
30
30
33
7. Single-coil DC test results
.............................................................
7.1 Examination of voltage traces of runs 13-25 and 32-38 .........................
...........................................
7.1.1 Nature of noise signals
7.1.2 Additional resistive/inductive voltages ..................................
..................................
7.2 Current-sharing temperature measurements
....................................................
7.3 Critical-current measurements
35
35
39
39
39
41
ii
US-DPC Test Report
January 1992
7.4 Simulated nuclear heating and AC loss calibration
.........................
7.4.1 Stability of US-DPC under nuclear heat loads
................
7.4.2 Calibration of mass flow in AC loss measurements
................
8. Series-coil DC test results
.............................................................
44
44
45
51
9. Single-coil AC test results
.............................................................
9.1 Single-coil coupling and hysteresis losses
..................................
9.2 Estimate of effective filament diameter
...........................................
9.2.1 Analytical model
....................................................
9.2.2 Effective filament diameters
...........................................
9.3 Estimate of coupling time constant
...........................................
9.3.1 Analytical model
....................................................
9.3.2 Effective coupling time constant
..................................
9.4 Flow choking
......................................................................
52
54
75
75
78
80
80
81
83
10. Ramp-rate limitation ......................................................................
10.1 Characterization of an AC test run
...........................................
10.1.1 Quenched or non-quenched ...........................................
10.1.2 Test mode (single-coil or series-coil) ..................................
10.1.3 Charging waveform ....................................................
10.2 The quenched runs
.............................................................
10.3 B ehavior
......................................................................
10.3.1 Baseline limit .............................................................
10.3.2 Single-coil tests
....................................................
10.3.2.1 Runs quenched in the interpancake lap joints
.......
10.3.2.2 Triangular-pulse runs
..................................
10.3.2.3 Round-edge trapezoidal-pulse runs
................
10.3.2.4 Rippled trapezoidal-pulse runs
.........................
10.3.2.5 Two-step trapezoidal-pulse runs
.........................
10.3.3 Series-coil tests
....................................................
10.4 Argument for limiting current ....................................................
95
95
95
95
95
96
101
101
102
102
103
105
107
107
109
110
11. Lap joint resistance
......................................................................
11.1 Joint description
.............................................................
11.2 Measured resistances
.............................................................
112
112
112
12. Mechanical performance of the US-DPC
...........................................
12.1 Displacement measurements
....................................................
12.2 Sensors and locations
............................................................
12.3 Displacement measurements during DC tests
..................................
12.3.1 Single-coil tests
....................................................
12.3.1.1 XT recorder charts
..................................
12.3.1.2 XY recorder charts
..................................
12.3.1.3 Relation between displacement and current squared .......
12.3.2 Series-coil tests (U1+U2+US)
..................................
114
114
114
114
117
117
124
124
124
iv
January 1992
US-DPC Test Report
..................................
12.3.2 Series-coil tests (U1+U2+US)
12.3.2.1 XY recorder charts ...........................................
12.3.2.2 Relation between displacement and current squared.......
..................................
12.4 Displacement measurements during AC tests
12.4.1 Single-coil tests
....................................................
12.4.1.1 XT recorder charts ...........................................
12.4.1.2 XY recorder charts ...........................................
12.4.1.3 Relation between displacement and current squared .......
..................................
12.4.2 Series-coil tests (U1+U2+US)
..................................
12.4.2.1 XY recorder charts
12.4.2.2 Relation between displacement and current squared .......
..................................
12.5 Strain measurements during DC charge tests
12.5.1 Single-coil tests
....................................................
12.5.2 Series-coil tests (U1+U2+US)
..................................
12.6 Summary
......................................................................
13. Recommendations for future work
....................................................
124
124
124
132
132
132
132
132
132
132
132
143
143
143
153
155
Appendix A. Publications associated with the US-DPC ..................................
A .l Annex V ...............................................................................
.............................................................
A.2 Coil Fabrication.
....................................................
A.3 Conductor critical current
A.4 Conductor AC losses
.............................................................
A.5 Low AC loss Nb 3 Sn wire development ...........................................
A.6 Incoloy 908 development
....................................................
...........................................
A.7 Superconducting poloidal coil design
156
156
156
156
157
157
157
158
...........................................
Appendix B. AC loss measurement technique
......................................................................
B. 1 Assumptions
............................................................
B.2 Measurement model
....................................................
B.3 Typical AC loss measurement
.........................
B.4 Pressure and mass flow measurements of example
159
159
159
161
164
...........................................
167
....................................................
171
Appendix C. Table of losses of AC test runs
Appendix D. Listing of coil test runs
v
US-DPC Test Report
January 1992
Acknowledgements
We would like to thank the following people for contributing to the completion and
success of the US-DPC: Dawood Aized, Stan Autler, Ron Ballinger, Don Beard, Marvin
Cohen, Joe Davin, Bob Dowling, Chuck Gibson, Dick Hale, Olivier Herbelot, I Soon
Hwang, Arthur Katz, Milt Machalek, Philippe Marti, Jerry Martin, Bruce Montgomery,
Martin Morra, Bruce Oliver, Bob Randall, Dan Reisner, Harold Schreiber, Joel Schultz,
Frank Silfies, Dave Smathers, Darrell Smith, and Jack Tracey.
Also, we would like to acknowledge the following companies: Teledyne Wah Chang
Albany, Electrocoatings Incorporated, New England Electric Wire Incorporated,
International Nickel Corporation, Oxford Superconducting Technologies, Everson Electric
Company, Wall Colmonoy Corporation, and Ibaraki-Kosan Corporation.
vi
US-DPC Test Report
1.
January 1992
Executive Summary
The United States Demonstration Poloidal Coil (US-DPC) was built and tested under MIT
supervision in a collaboration between the Japan Atomic Energy Research Institute (JAERI) and
the United States Department of Energy (DOE). The objective of the collaboration was the
development of superconducting poloidal coil technology applicable to the next generation of
fusion experimental devices. The three goals of the experiment were:
1. Evaluation of the manufacturing process in terms of coil performance. For example, did
the coil reach the short sample performance of the wire? Did the high-current lap joints
dissipate too much power? Note that fabrication techniques for coils built from the brittle
intermetallic compound Nb 3 Sn differ significantly from those built of the ductile alloy
NbTi or built of ductile copper.
2. AC operation to 10 T at 10 T/s. Was the coil capable of being charged with a trapezoidal
waveform from zero current to constant full current at significant magnetic fields?
3. Evaluation of a dual-flow cooling scheme. Is a double-conduit cooling scheme, with
independent cable-space and corner helium flows, effective at removing the significant
AC-loss heat loads in an ohmic heating coil?
The goals of the US-DPC experiment were only partially realized due to unanticipated AC
behavior of the coil. Results are summarized below:
1. Evaluation of the manufacturing process in terms of coil performance. Coil performance
in the DC mode was excellent. The coil was leak tight under moderate mechanical loads,
the cryogenic system worked properly, lap joint resistances were low, the quench
protection system worked well, and mechanical behavior of the coil was reproducible.
Cable current-sharing temperatures exceeded short sample predictions by up to ~ 10 %,
implying little or no degradation of the Nb 3 Sn superconductor by strain or damage - this
is the most significant result of the experiment.
2. AC operation to 10 T at 10 T/s. The design goal of a charge from 0 T to 10 T at 10 T/s
was not realized. However, operation from 0 T to 7 T at 7 T/s was achieved. An
unanticipated ramp-rate limitation was identified, which appeared to be related to shortduration energy disturbances and the "limiting current" of the conductor and not to AC
losses - this is the second significant result of the experiment.
3. Evaluation of a dual-flow cooling scheme. Systematic evaluation of the dual-flow
cooling scheme was abandoned when the ramp-rate limitation was identified. Heat
removal by corner flow typically equaled or exceeded heat removal by cable-space flow.
I
US-DPC Test Report
January 1992
To itemize manufacturing aspects relevant to the envisioned International Thermonuclear
Experimental Reactor (ITER), the US-DPC contributed to high-field, large-coil technology
through development of:
- loss-optimized, internal-tin Nb 3 Sn wire,
- chrome plating for Nb3 Sn wire,
- Incoloy 908, a low-COE-superalloy conduit,
* wind-and-react techniques on a 2-m-diameter scale,
- a vacuum furnace on a 3-m-diameter scale, and
- low-loss, high-current, Nb 3 Sn lap joints.
The experimental results offer several implications for the ITER model coil program. These
are:
"Loss optimization of Nb3Sn wire is effective, since hysteresis losses of the cable were
comparable to those predicted from single-wire short samples (see Fig. 9.22).
"Chrome plating is effective as an anti-sintering agent during heat treatment, since cable
coupling time constants were comparable to those of single wires (see Table 9.3).
"Vacuum heat treatment is effective in preventing stress-accelerated grain boundary
oxidation (SAGBO) of the Incoloy 908 conduit, since the coil was helium-leak tight
through more than 300 test cycles.
* Use of a low COE conduit and a wind-and-react technique appear to be sufficient to
optimize the critical properties of Nb3 Sn (see Fig. 7.7).
*High-current, low-resistance Nb 3Sn lap joints can be built successfully in an industrial
environment (see Section 11).
- No ramp-rate limitations appear to exist below a characteristic limiting current defined as
the copper-stabilizer current at which Joule heating equals cooling by the surrounding
helium (see Fig. 10.5).
2
US-DPC Test Report
2.
January 1992
Introduction
The United States Demonstration Poloidal Coil (US-DPC) was built and tested under
the auspices of "Annex V" to the Implementing Arrangement between the Japan Atomic
Energy Research Institute (JAERI) and the United States Department of Energy. As stated
in the arrangement, the objective of the collaboration was to conduct tests and to evaluate
conductor design concepts and performance in support of the development of
superconducting poloidal coil technology applicable to the next generation of fusion
experimental devices.
3.
Purpose
The purpose of this document is to present data from the US-DPC experiment that can
be used to estimate the performance of future poloidal coil designs. Emphasis is on the
evaluation of AC losses in the US-DPC cable-in-conduit conductor (CICC).
4.
Summary of experiment
The experiment began on November 5 and ended on December 20, 1990. The three
goals were: (1) evaluation of the manufacturing process in terms of performance; (2) AC
operation to 10 T at 10 T/s; and (3) evaluation of a dual-flow cooling scheme (independent
control of cable-space and corner flows).
4.1
Statistics
There were two cooldowns of the facility, of duration approximately one week each. A
total of 305 runs were done: 73 DC and 232 AC. The US-DPC quenched 51 times;
adequate protection was provided by dump signals from both bridge and inlet-mass-flowmeter circuits. The protection system worked well in both the DC and AC modes, although
allowance had to be made for the ferromagnetic nature of the Incoloy 908 conduit.
The nominal operating condition was supercritical helium at 4.5 K, 6 atm, and 60 g/s at
the inlet; the two lap joints between double pancakes were cooled with liquid rather than
supercritical helium, a design decision that proved to be a problem area. The minimum test
temperature was 4 K; the maximum 14.8 K. The minimum flow was 15 g/s, or 2.5 g/s per
pancake; the maximum was 60 g/s or 10 g/s per pancake.
4.2
Single-coil DC tests
"Single coil" means that the US-DPC was tested alone (zero background field). These
tests established that the coil was leak tight, the cooling system was working, the lap joint
resistance was low, and the protection system was working. It was concluded that the
fundamentals of the coil fabrication were in order.
When the coil reached 100% charge (30 kA) for the first time, a power supply overheat
initiated an unplanned dump that yielded a first estimate of AC losses. The losses were
approximately 0.1% of the stored energy of 8.2 MJ. They appeared to be within a factor of
2 of estimates made from single-wire measurements at MIT.
To determine if the conductor had significant resistive portions, flow conditions were
3
US-DPC Test Report
January 1992
varied. Most significantly, flow in the cable space was stopped while maintaining corner
flow only; the coil was then charged to 30 kA (5.7 T) with no evidence of transition from
the superconducting to the normal state.
Current-sharing temperature measurements were made to 30 kA, to compare the 225strand cabled superconductor to single-wire measurements. These measurements were
performed by charging the coil to a given current and then slowly raising the inlet helium
temperature above 4.5 K until resistive voltage was seen. It was found that the
performance was slightly better than predictions taken from a combination of published
literature and single-wire measurements at MiT and the University of Wisconsin, indicating
no degradation due to damage or strain of the superconductor. These results were
confirmed with critical current tests, in which the inlet helium temperature was raised and
stabilized and then the coil charged until resistive voltage was seen.
Intermediate ramp-rate tests were done to see if the US-DPC suffered from the
limitations of the Japanese U 1 and U2, that is, quenches at ramp rates on the order of
minutes. The fastest charge was 30 kA/min (0.1 T/s); no evidence of transition from the
superconducting to the normal state was found, indicating no limitation at these ramp times.
Nuclear heating tests were performed using a heater in the cable of double pancake B;
the maximum heat load was 200 W at 30 kA. This established that the cooling capacity
exceeded the ITER specification. It was observed that flow choking occurred in double
pancake B, with the general significance that parallel passages may choke when nuclear
heating takes place. (This may be true whether heating is balanced or unbalanced, and can
have significance for large ITER-scale magnets.)
In summary, the single-coil DC tests provided a manufacturing evaluation of the coil at
low fields. The test results indicated that the coil worked well and was neither significantly
damaged nor strained.
4.3
Series-coil DC tests (US+U1+U2)
The US-DPC was charged in series with the U1 and U2 background coils to a peak
field of 8 T (25.9 kA). The charging time to 8 T was approximately 14 hours, showing the
extreme sensitivity of the U1 and U2 coils to intermediate ramps. The series DC test
verified the integrity of the US-DPC to 80% of the design field of 10 T before a quench of
the Ul coil brought the test to a halt. (Caveat on coil integrity: no tests > 8 T).
4.4
Single-coil AC tests
It was expected that a charge to 5.7 T (30 kA) at a ramp rate of 10 T/s would be
achieved without evidence of transition from the superconducting to the normal state.
However, an unexpected barrier of either field or current (or both) versus ramp rate was
encountered. A secondary purpose, that of evaluating the cooling effectiveness of the dualflow conductor, was pushed aside in favor of a focused look at the more important and
completely unexpected ramp-rate limitation. It appeared on the basis of preliminary
investigations during testing that the AC losses were too low to account for the ramp-rate
limitation.
The "barrier" on performance is illustrated in Table 4.1, and when attempts were made
to exceed these values, the coil quenched. It was found that the quenches initiated mainly
in two places. At high ramp rates, the quenches initiated in the liquid-helium-cooled lap
4
US-DPC Test Report
January 1992
Table 4.1 - Best performance in single-coil tests for trapezoidal-pulse runs ramped to fields from 3.8 T to
6.0 T (3 s flat tops without quench). Noncopper current density is defined as cable current divided by the cable
noncopper area (approximately 50 mm 2).
run no.
ramp rate
field
current
Je noncopper
139
128
122
124
134
19 T/s
4.3 T/s
2.7 T/s
0.71 T/s
0.55 T/s
3.8
4.3
4.7
5.7
6.0
20 kA
23 kA
25 kA
30 kA
32 kA
400 A/mm 2
460 A/mm 2
500 A/mm 2
600 A/mm 2
640 A/mm2
T
T
T
T
T
joints, which are monolithic conductors for practical purposes. At lower ramp rates, the
quenches initiated in the crossover turn of double pancake C, not in the peak field point of
the magnet (crossover turn of B). It was noted that double pancake C had a void fraction
of 43 % (larger helium inventory); the other two had void fractions of 38 %. Also, double-
pancake C had a current-lead termination that was slightly damaged during fabrication.
Figure 4.1 shows the baseline ramp-rate limit as described in section 10.3.1.
To better understand the observed behavior, the following charging waveforms were
investigated: (1) two-step trapezoidal pulses; (2) multiple trapezoidal pulses; (3) round-edge
trapezoidal pulses (ramp plus half sine wave); and (4) trapezoidal pulses with a
superimposed ripple ranging from 6.6 to 16.5 Hz. Investigations were carried out under
the nominal cooling conditions of 4.5 K, 6 atm, and 60 g/s. The highest current in the coil
was achieved using a round-edge trapezoidal pulse. It was 35 kA (6.6 T) at an average
ramp rate of 0.5 T/s.
To investigate the effect of cooling on the ramp limitation, improved cooling conditions
were tried (4.0 K, 3.0 atm, 60 g/s); there was no significant improvement. Little difference
was observed when the cable-space flow was reduced to zero in double pancake B, or
when the corner flow was reduced to zero in pancake 4. Slow-flow cooling conditions
were tried by reducing the inlet helium flow to 30 g/s (4.5 K, 6 atm). There was a
noticeable, but small, improvement in performance (= 4 %).
5
US-DPC Test Report
January 1992
35
C.,
30
25
Baseline ramp-rate limit
I= 23.2+ 0.845t
.
20 0
15
4-
10
0.)
Q
-_
---------- --------
I
---- ------1------------------------------
5
0
0
2
4
8
6
Time
tq or tm
10
12
(s)
Figure 4.1 - Baseline ramp-rate limit defined as a straight line correlating quench data (see section 10.3.1).
4.5
Series-coil AC tests (US+UL+U2)
The principal purpose of the series AC tests was to determine if the coil could sustain a
ramp rate of 10 T/s to a peak field of 10 T. It was found that it could not.
Four pulse shapes were used: triangular, trapezoidal, round-edge trapezoidal, and
rippled trapezoidal. Note that only fast ramps were possible because of the limitations of
the U1 and U2 coils. (The U1 and U2 coils would quench at ramps slower than
approximately 3 s to currents of approximately 20 kA and above). The flow conditions
were nominally 4 K, 6 atm, and 60 g/s at the inlet of the US-DPC (10 g/s per pancake).
Table 4.2 summarizes the best performance based on pulses with flat tops, and Figure 4.2
plots the non-quenched series-coil runs in comparison with the baseline limit.
As an example of the temperature rise produced by AC losses and measured at the
pancake outlets, run 265 in Table 4.2 is considered. The flow conditions were 4 K, 6 atm,
60 g/s. The trapezoidal pulse had a 1 s rise time, a 0.5 s flat-top time, and a 1 s fall time; it
yielded an average outlet temperature rise of approximately 0.5 K on pancakes 2, 3 and 5.
That is, the losses in the six pancakes were approximately equal.
Table 4.2 - Best performance in series-coil tests.
run no. charging waveform
flattop
ramp rate
field
current
Jc noncopper
265
271
277
0.5 s
3.0 s
0.5 s
6.4 T/s
2.3 T/s (avg)
6.8 T/s (avg)
6.4 T
6.8 T
6.8 T
21 kA
22 kA
22 kA
420 A/mm2
440 A/mm2
440 A/mm2
trapezoidal
round-edge trapezoidal
rippled trapezoidal
6
US-DPC Test Report
p
January 1992
Li...__
35
C..3
Baseline ramp-rate limit
30
25
...............
i
15-
II
I.P.
-----E---- ---------
I
a
II
4)
10
E
_...
Non-quenched series-coil, trapezoidal runs
5
0
0
1
2
4
3
Time
tm
5
6
(s)
Figure 4.2 - Data of the non-quenched, series-coil, trapezoidal-pulse test runs fall below the baseline ramprate limit defined by single-coil data. Note, however, that the magnetic fields in the series-coil tests were
higher.
The peak helium temperature rise has been estimated by JAERI from work on the DPCEX to be approximately a factor of 3 - 4 times the outlet temperature rise. Thus, it is
estimated that the trapezoidal pulse of run 265 produced a peak temperature rise in each
crossover turn of roughly 2 K (absolute peak T ~ 6 K).
5.
Coil and test-mode specifications
Section 5 is a compilation of specifications of the wire, conductor, coil, coil stack,
magnetic field distribution, and coolant flow arrangement. The relevant parameters of the
US-DPC and its test arrangement at JAERI are described in detail.
5.1 Wire
The US-DPC wire, made by Teledyne Wah Chang Albany (TWCA), was a titaniumalloyed, internal-tin, modified-jelly-roll Nb 3 Sn wire with a local copper-to-niobium ratio of
1.7 to 1. Parameters of the wire are given in Table 5.1. A cross section of the wire is
shown in Figure 5.1.
7
US-DPC Test Report
January 1992
Table 5.1 - Parameters of the TWCA internal-tin Nb 3Sn wire.
TWCA design designation
Volume % noncopper
No. filament bundles
Strand chrome
RRR
Heat treatment:
Cre 2000
Strand Diameter
46.0
Volume % copper
18
Strand pitch
2x10 m
Length/weight
27
220 C / 175 hrs + 340 /96 +650 /200
Within the noncopper region:
Volume %filament
Volume % tin
Local Cu/filament ratio
22.9
15.8
1.69
Hysteresis (±3T cycle)1
Coupling Time Constant
Hysteresis (±7T cycle)1
460 mJ/cm 3 -noncopper
1 ms
650 mJ/cm 3 -noncopper
0.78 mm
54.0
12.7 mm
242 m/kg
Volume % copper
48.8
Volume %vanadium 12.6
Temperature dependence of hysteresis loss ( T > 4.5 K)2 : Qh = 1.47 - 0.103 T [mJ/cm 3 - wire]
Hysteresis 3 - triangular wave to BM:
Qh = 178.2[1 - exp(-0.129 Bm)} [mJ/cm 3 - wire]
Bundle coupling 3 - triangular wave to Bm in time Tm:
Qc = 50. 6 8 (Bm/Tm) ln(1 + 2.4x10-3 RRR Bm) [mJ/cm 3 - wire]
Critical current 3 (4.2 K, 10 pV/m) from B = 3 to 13 T:
Ic = 1830.9 - 640.58 B + 120.04 B 2 - 12.707 B3 + 0.69682 B4 - 0.015336 B5 with
R2= 1.000, where R is the correlation coefficient.
5.2 Conductor
The cable-in-conduit conductor of the US-DPC consists of a 225-strand cable of
multifilamentary Nb 3 Sn wires enclosed in two conduits of Incoloy 908, a superalloy
selected for its low coefficient of thermal expansion, which nearly matches that of Nb 3 Sn.
The ideal geometry of the conductor is shown in Figure 5.2. Table 5.2 lists parameters of
the conductor.
5.3 Coil
The coil contains approximately 450 meters of conductor in the form of three double
pancakes designated A - C connected electrically in series by means of resistive lap joints.
Figure 5.3 shows the coil envelope and Figure 5.4 shows the connection schematic. The
helium inlets are located at the midpoint, 75 meters from each end of a double pancake.
The coil was designed to operate at 30 kA with an overall current density of 50 A/mm2 at
10 T and 4 K. Table 5.3 summarizes the coil design.
Figure 5.5 shows a plan view of the coil and centerline geometry of a double pancake.
Each pancake has a conductor geometry defined by offset semicircles. The helium inlet of
a double pancake is at the 180 degree reference at the inner diameter. As can be seen in
8
US-DPC Test Report
January 1992
Tin Diffusion Barrier
(Vanadium and Niobium)
Filament Bundle
(Jelly Roll)
Copper Stabilizer
Nb Filaments in
Copper Matrix
Chrome Plating
Tin Core
Figure 5.1 - Cross sectional view of unreacted US-DPC internal-tin modified jelly roll Nb3Sn wire. The
diameter is 0.78 mm; 54% is copper; there are 18 filament bundles.
9
US-DPC Test Report
January 1992
Figure 5.5 (b), only 50 % of the conductor centerlines are on arcs with centers at the "true
coil center". Note that the double pancakes are stacked so that two helium inlets (A and C)
are located opposite the current leads and one helium inlet (B) is located adjacent to the
current leads. That is, the 180 degree reference point of double pancake A and C are
located just above and below the 0 degree reference point of double pancake B.
The centerline radii are given in Table 5.4. Note that the crossover turn from 270-to-0to-90 degrees has a center offset of 15 mm. All other turns have an offset of 11.5 mm.
The crossover turn spans 360 degrees; we associate one half of a crossover turn with each
pancake (16.5 turns per pancake). The primed radii define arcs from 270-to-0-to-90
degrees; the unprimed from 90-to-180-to-270 degrees.
The insulation geometry at a double pancake "180 degree reference" is shown in Figure
5.6. At this location, the inside radius of the groundwall insulation is 500 mm; the inside
radius of the crossover is 506.85 mm.
1.01
2.69 R
I7.48
0X
8.33
8.33
R
2.41
",.22.3
R-/5.1
-3.30
R
DIA
415.46 11
Figure 5.2 - Dimensions of the US-DPC conductor in millimeters. There were full-length heater wires
(3.30 mm dia. x 150 m) in two of the three double pancakes (A and B).
Table 5.2 - Parameters of the US-DPC cable-in-conduit conductor (CICC).
Void Fraction (no heater)
Cable space area
Cable helium area (no heater)
Inner conduit area
Corner helium area
Cable type
Triplet pitch
3x3x5 pitch
Actual strand diameter
*
43%
193.0 mm 2
82.9 mm 2
53.0 mm 2
53.6 mm 2
3x3x5x5
51 mm
203 mm
0.78 mm
Void Fraction (with heater)*
Cable area
Cable helium area (with heater)
Outer conduit area
Number strands
Strand pitch
3x3 pitch
3x3x5x5 pitch
Two of the three cables had 3.2 mm diameter heater wires at their centers.
10
38%
108.6 mm 2
74.3 mm 2
175.4 mm 2
225
12.7 mm
102 mm
305 mm
US-DPC Test Report
January 1992
.6
0.154 m
---
-7
1.0 m
10
1.82 m
Figure 5.3 - Envelope dimensions of the US-DPC solenoid. The two lap joints between the three double
pancakes are not shown.
75 m. 475 mr
7r
A
75 m I
75 m *
Joint A/B
B
r-75 mrn
Joint B/C
4.
75 m
C
i
C Lead
A Lead
Figure 5.4 - Connection schematic showing the helium inlet tees of the A, B, C double pancakes, the A/B and
B/C lap joints and the coil leads.
Table 5.3 - Summary of the US-DPC coil design.
Superconductor
Design field
Design ramp rate
Height
Total turns*
Inner diameter
Total conductor length
Overall current density
Turn-to-turn insulation
Barrier disk between pancakes
Load line (series mode)
Conduit
Design current
Double pancakes
Turns per double pancake
Ampere-turns
Outer diameter
Length per double pancake
Cable-space current density
Ground insulation
Load line (single coil mode)
Nb 3 Sn
10T
10 T/s
0.154 m
100
1.0 m
450 m
50 A/mm 2
0.71 mm
2.44 mm
0.307 T/kA
* Includes turn for lap joints between double pancakes
11
Incoloy 908
30 kA
3
33
3 MA
1.8 m
150 m
163 A/mm 2
1.88 mm
0.190 T/kA
US-DPC Test Report
January 1992
C Lead
A Lead
0
FRi'
4- x
9%
I
270
-1.~
4---1.8 m
180
(b) Conductor centerline geometry.
(a) Plan view of US-DPC coil.
Figure 5.5 - Reference coordinates of the US-DPC. The assembled coil is shown in (a) and the centerline
geometry of a double pancake in (b). Note that each double pancake consists of semicircles with the top
semicircle offset from the bottom by a distance x. The helium inlets of the A and C double pancakes are opposite
the current leads and that of the B double pancake adjacent to the current leads.
Table 5.4 - Centerline radii of each double pancake. Unprimed radii are from the true center; primed radii
are from the offset center.
Bottom Arcs
(90/180/270)
Top Arcs
(270/0/90)
Ro = 518 mm
Ro'= 533 mm
Crossover
Other turns
R 1 = 548 mm
R2 = 571 mm
R 3 = 594 mm
Ri'= 559.5 mm
R2 '= 582.5 mm
R3 '= 605.5 mm
R 15 = 870 mm
R16 = 893 mm
R15 ' = 881.5 mm
R 16 ' = 904.5 mm
12
US-DPC Test Report
January 1992
500 mm
4
50.8 mm
12.37
1
mm722.3
177m
1.88 mm-l 14-22.3 mm-0
4-
2.44 mm
0.71 mm
Figure 5.6 - The double pancake cross section at the 180 degree reference of Figure 4.5 (b) shows the insulation
builds (helium inlet is not pictured in the cross section). The inside radius of the ground wall is 500 mm.
Insulation is epoxy-glass.
Coil stack
The geometry of US-DPC, U 1, and U2 coils in the JAERI test facility is outlined in
Table 5.5. The inner radius is approximately 510 mm to the conduit metal; the axial height
includes turn and ground insulation (for U1 and U2 this is 4.5 mm gnd + 0.5 mm turn and
for US-DPC this is 1.9 mm gnd). In Table 5.5, the inner and outer radii of the US-DPC
are average values taken from the true center.
5.4
5.5
Magnetic field distribution
The magnitude of the calculated magnetic fields as a function of radius for the single-
coil and series-coil test modes are given in this section.
The field distribution along the midplane of each pancake in the single-coil mode (no
background field) has been calculated assuming the following envelope geometry: inner
radius to conduit metal of 510 mm, outer radius of 910 mm, and height of 154 mm. The
envelope was assumed to contain 100 turns, yielding an overall current density at 30 kA of
approximately 48.7 MA/m 2 . The midplanes of the pancakes are positioned at 12.7 mm,
38.9 mm, and 64.3 mm; these are the elevations at which the field as a function of radius is
13
US-DPC Test Report
January 1992
calculated. Figure 5.7 plots the magnitude of field as a function of radius at the three
elevations for the single-coil mode (US-DPC only). Figure 5.8 plots the field as a function
of radius for the series-coil mode (Ul + US-DPC + U2). The peak field, located at the
inner edge of the crossover turn of double pancake B, is approximately 5.66 T at 30 kA for
the single-coil mode and 9.22 T at 30 kA for the series-coil mode.
Table 5.5 - Coil-stack geometry of the US-DPC and the JAERI Ul and U2 coils.
coil
inner
radius
(mm)
outer
radius
(mm)
axial
height
(mm)
axial
position
(mm)
operating
current
(kA)
no. of
turns
US-DPC
510 1
910
154 2
0 (± 77) 3
30
100 4
DPC-U1
500
1010
313.4
207.7, 521.1
30
127
DPC-U2
500
1010
313.4
- 207.7, - 521.1
30
127
1 inner radius is 500 mm to insulation and 510 mm to conduit metal at 180' reference
2 includes two 0.8 mm G10 sheets between double pancakes
3 z =0 corresponds to the US-DPC midplane
4 33 turns per double pancake plus 1 turn for lap joints
5.6 Flow
Secondary cooling passages were provided by the four corners between the inner
conduit and the outer conduit (see Figure 5.2). In double pancake B (pancakes 3 and 4),
the cable-space and corner flows were controlled separately by means of valves. Three
cooling modes were thus possible: (1) flow through the cable with zero flow in the corners,
(2) flow in the corners with zero flow in the cable, and (3) flow through both the cable and
corners. The "normal" flow condition in double pancake B was with all outlet valves open
(valves V2 through V5). The nominal inlet flow condition was supercritical helium at
4.5 K, 6 atmospheres absolute, and 60 g/s. See Figure 5.9 for the supercritical helium
flow diagram.
Note that although the nominal flow was 60 g/s as measured by a flow meter
monitoring the total flow into the US-DPC, the sum of the individual flow measurements
of each double pancake varied markedly. The total flow obtained by summing the
individual flows was nominally 45 g/s. Furthermore, the mass flows at the inlet of A
(pancakes 1 and 2) and B (pancakes 3 and 4) should be the same because the flow crosssections are the same. However, double pancake A's flow is approximately 75% of B's
flow. Also, the outlet flows of B do not sum to equal the inlet flow of B. There is a
consistent discrepancy throughout the testing, indicating a need for thorough calibration of
the flow meters throughout the measuring range in future tests.
14
US-DPC Test Report
January 1992
Single-coil Mode Magnetic Field Distribution
Pancakes 1 and 6
Pancakes 2 and -
Pancakes 3 and 4
0.5
0.6
0.7
0.8
0.9
1.0
Radius (m)
Figure 5.7. - Absolute value of magnetic field as a function of radius plotted along the midplanes of the US-DPC
pancakes at 30 kA. The plot is for the single-coil mode (US-DPC only). The midplanes of pancakes 1 and 6 are
at elevations of ± 64.3 mm, 2 and 5 at ± 38.9 mm, and 3 and 4 at ± 12.7 mm. The peak field at the inner edge
of the crossover turn of double pancake B is approximately 5.66 T at 30 kA.
15
US-DPC Test Report
January 1992
Series-coil Mode Magnetic Field Distribution
10
8
6
Pancakes 1 and 6
0a
(D
E-
4
ancakes 2 a d 5
2
Pa cakes 3 and 4
0
0.5
0.6
0.7
0.8
0.9
1.
0
Radius (m)
Figure 5.8 - Absolute value of magnetic field as a function of radius plotted along the midplanes of the US-DPC
pancakes at 30 kA. The plot is for the series-coil mode (U1 + US-DPC + U2). The midplanes of pancakes 1
and 6 are at elevations of ± 64.3 mm, 2 and 5 at ± 38.9 mm, and 3 and 4 at ± 12.7 mm. The peak field at the
inner edge of the crossover turn of double pancake B is approximately 9.22 T at 30 kA.
16
US-DPC Test Report
January 1992
USPD01
T
pancake #1
UST-------O1P-j---------------cii
-L -F
A
USMCF
U
c tUro
-
-
USMC04
V-3
USTC06
USPT05
USPO6
USMC05
USMC06
V-2
USPT07
USMC07
V-4
USTC08
d
bUSPT2
T
USTC02
P
pancake #5
F
:USMCO
SHe
V-5
pancake #4
Main
1.R e
yYO3V1
nT ue
UPTUSMCTC-2
S~e
UMO
UPTs
- --
B
Subf]UMC0
He
sio.
T
pancake #3
p--
P
UTO
USTC04
pancake #2
USPD02
e c--b-o-n----
USTC01 temper
USTC03
C
USPT8
V-6
USTC1
pancake #6
USPD03
Legend:
Reerne
T = temperature (carbon glass resistors)
P = pressure (room-temperature pressure transducers)
F = mass flow (orifice flow meters)
Figure 5.9 - Supercritical helium flow schematic of the US-DPC. There were 10 temperature, 8 pressure,
and 7 flow measurement points. Outlets in pancakes 3 and 4 were piped to allow independent control of flow in
the corners and cable space (see Figure 5.2). Valves V-3 and V-4 controlled cable space flow; V-2 and V-5
controlled corner flow in double pancake B.
References
1.
R. Goldfarb, Private communication.
2. A.K. Ghosh and M. Suenaga, IEEE Trans. Mag., Vol. 27, No. 2, March 1991, p. 2407.
3. M. Takayasu et al., "11 th Int'l Conf. on Magnet Tech.", (1989), p. 1033.
17
US-DPC Test Report
6.
January 1992
Thermal performance
6.1
Introduction
The cooldown performance, coil heat load measurements, and pressure drop
performance were measured to characterize the thermal performance of the US-DPC. In
the cooldown operation, it was demonstrated how to cool a large-scale, forced-cooled,
cable-in-conduit conductor to the 4K regime with no resultant damage from excessive
thermal stress in the coil. The coil heat loads were estimated by measuring the enthalpy
differences between the inlet and outlet helium of the coil. The pressure drop performance
across the coil is of interest for future designs of force-cooled, cable-in-conduit conductors.
Through the US-DPC experiments, Reynolds numbers and friction factors were calculated
by measuring the coil pancake mass flow rate and the differential pressure between the
pancake inlet and outlet.
6.2 Cooldown
6.2.1 Cooldown weight
The US-DPC, DPC-U 1, and U2 were assembled in coaxial configuration as shown in
Figure 6.1. The total cooldown weight including the coil suppport structure system was
around 23 tons as listed in Table 6.1.
6.2.2 Cooldown operation
The US-DPC, DPC-Ul, DPC-U2, and the cryogenic pump system, which circulates
supercritical helium through the coil system, were simultaneously cooled down to
temperatures less than 20 K by using JAERI's 1.2-kW, 350-liter/hour helium refrigerator.
Below 20 K, the cryogenic pump system supplied 4 K liquid helium to the coil system.
The cooldown flow scheme and method is shown in Figure 6.2.
From room temperature to 90 K, the helium supply temperature was controlled to
prevent excessive thermal stresses in the coil by monitoring the temperature throughout the
coil system at more than 70 locations. From 90 K to 20 K, the cooldown was limited only
by the refrigeration power of the cryogenic system.
6.2.3
Cooldown performance
6.2.3.1 Cooldown performance curve
The helium supply temperature, inlet helium temperature, and outlet helium temperature
were measured as a function of cooldown time as shown in Figure 6.3. The helium supply
temperature was reduced in a step-like manner by computer control. Up to 50 hours after
the cooldown had begun, the coil outlet temperature decreased with the rate of -0.6 K/h.
From 50 hours to 100 hours, the cooldown rate was around -3 K/h, and from 100 hours to
150 hours, when the computer control was stopped, the rate was around -1.6 K/h. The
cooldown from room temperature to below 20 K was completed in 150 hours.
During cooldown, the mass flow rate to the US-DPC was continuously monitored to
maintain the differential pressure across the coil to less than 0.2 MPa. The mass flow rate
18
US-DPC Test Report
January 1992
US-DPC Test Report
January 1992
Table 6.1 - Cooldown weight of DPC coil system.
COOLDOWN WEIGHT
4200kg x 2
2800kg
Superconducting
coil
U1/U2 coil
US coil
Supporting
structure
7400kg
Coil supprt
Supprt frame 2700kg
Support legs 350kg
300kg
FRP etc.
23000kg
Total
Coil Support
DPC-Ul (Nb-Ti)
Conduit
US-DPC ( Nb 3 Sn)
l S-DPC-U2
Coil Support
Support Leg
Figure 6.1 - Coil configuration of the US-DPC, DPC-UI, and DPC-U2.
19
(Nb-Ti)
US-DPC Test Report
January 1992
COOLDOWN OPERATION
RN
U2
Helium re frigerator .
--i vaC
helium Pump Systam
EALC
---
Coll vaouum.charfber
OPERATION
COIL TEMP.
300 - 90 K
AUTOMATIC CONTROL BY COMPUTER
90 - 60 K
COLD TURBINE START
60 - 20 K
WARM TURBINE START
20-
SHe CIRCULATION PUMP START
4K
Figure 6.2 - Cooldown flow scheme and method.
20
US-DPC Test Report
January 1992
01=1
111i
MO-1
31LV8
(S/6)
U",
40
40
W
1
'0
I
'0*0
40
00
40(
Iww
wn
7
0D
41
4 00
40
0
40
~~
4;
3
E
-
00
LC
4
0
C..)
0 0
0
44
0
0
4
0
0
0
0
C.
0
0
Cr,
0
U,
-D'
0
U,
4)
0
C-,
4
C-
4
0
0
0
0
4 o
0
C.)
0
4)
C-
0
0
0
0
0
C-
a
0-
0
E
4)
0
*
0
a)
C
0
2:,
a
0
0
0
C-,
C-)
0
Kr)
C>
0
0
0~
C>J
p.
C4j
4)
C-
21
US-DPC Test Report
January 1992
was changed from a few grams per second in the beginning to around 10 g/s at the end of
the cooldown as shown in Figure 6.3.
After cooldown, it was verified that no damage from excessive thermal stress was done
to the coil.
6.2.3.2 Cooldown temperature control specifications
The temperature during cooldown was controlled according to the following specifications.
1) The temperature difference between the pancake inlet and the outlet was kept below
100 K.
2) The temperature difference between the US-DPC and neighboring coils (DPC-U1
and U2) was kept below 50 K.
The results of the temperature control during cooldown are shown in Figure 6.4 for the
pancake inlet and outlet temperature differences and Figure 6.5 for the coil temperature
differences. The maximum temperature difference between the pancake inlet and outlet was
100 K at the cooldown time of 50 hours, which corresponds to the thermal stress of around
2 kgf/mm2 (around 0.2 MPa). The temperature difference profiles as a function of the
cooldown time were similar in each pancake.
The maximum temperature difference between the US-DPC and the neighboring coils
was around 50 K at pancake No. 1 of the US-DPC at the cooldown time of 50 hours.
The control specifications mentioned above were maintained throughout the cooldown.
6.3
Coil heat load measurements
6.3.1 Sensors and locations
To measure the coil thermal conditions, seven flow meters, eight pressure taps, and 18
temperature sensors were installed as shown in Figure 6.6. An orifice type flow meter was
adopted as the mass flow meter, the measurement ranges in the 4 K regime were 3 to 20 g/s
for the two flow meters (USMCO1 - 02) located at the inlet of double pancakes A and B, 6
to 40 g/s for the flow meter at the inlet of double pancake C (USMC03) and 1 to 10 g/s for
the four flow meters (USMC04 - 07) located at the outlet of the double pancakes.
Platinum-Cobalt thermocouples were used at temperatures above 20 K, and carbon-glass
resistor thermocouples were used at temperatures below 20 K.
6.3.2 Coil heat load measurement results
Similar to the AC loss measurements (see Appendix B), the coil heat load can be
calculated by measuring the increase in helium enthalpy from the coil inlets to the outlets
and multiplying by the mass flow rate of the given flow channel.
In the experiment, the helium enthalpies were found by measuring the helium pressures
and temperatures at the coil inlets and the outlets. The enthalpy difference between the inlet
and outlet was then multiplied by the mass flow of the given channel to find the heat load of
that particular channel. Finally, the total coil heat load was found by summing the heat
loads of the individual flow channels.
22
US-DPC Test Report
January 1992
January 1992
US-DPC Test Report
US COIL
150
(He outlet) -(He inlet)
E
0 PANCAKE 43
A PANCAKE 414
20
V PANCAKE #6
-
0599 -
L100
Q
00
8(
LiL
QCP
%
o0
19 0v
c 0v svoo
)
IL
C
00
CO
a
1,0 L~
17
:D
Cr
0
CL
1-
a~n
Mo
a
10
g
13A
30
99
coV
v
aa
0
V9
0
- 1.OL
w
100
50
0
TIME
150
( hour)
Figure 6.4 - Temperature difference between inlet and outlet of US-DPC pancakes 1,3, 4 and 6 as a function of
cooldown time.
100
TcSprCER)-TccolL)
0 SFACER-U1 ANCAKE A
0
(r0
S50
~-0
00
0 &0
O01 01
_ _
_
A
0
_
_
H
A
A
00
_
G0
0
10
U2
17
~ v
o
W0
50
TIME
( hour)
Figure 6.5 - Temperature difference between coil spacer and US pancake 1,US pancake 6, UI pancake A and U2
pancake H as a function of cooldown time..
23
IS0
US-DPC Test Report
January 1992
#sit#
...........
.... .
............
~~~~~~~~................
pascake I I
pancake lofaV
1
-.
selectede
A.)
rItoe s
ITOI
-
sarcaeSTM
ft t
V'
V -5i
1C
EstVira
0
54
- 4
(C)V
PC
Mstt
Pancake i
Figure 6.6 - Cooling flow diagram of US-DPC and sensor locations.
The coil heat load calculation results are shown in Table 6.2 (a) to (e), which are
selected for the five typical operation modes:
(a)
Standby mode with the current leads cooled by cold helium vapor.
(b)
US-DPC was charging at 30 kA with the current leads cooled by
liquid helium.
(c)
US-DPC was charging at 25 kA and heater input of 70 + 353 W
with the current leads cooled by liquid helium.
(d)
US-DPC was charging at 30 kA and heater input of 100 W with
the current leads cooled by cold helium vapor.
(e)
US-DPC, DPC-Ul, and U2 were charging at 25 kA in series with
the current leads cooled by liquid helium.
Pancakes No. 1 and No. 6 (see Figure 6.6) are connected to the negative and
positive current leads, respectively. Thus, pancakes No. 1 and No. 6 are subjected to heat
conduction from the current lead which is, in turn, strongly affected by the current lead
cooling condition.
24
US-DPC Test Report
F
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January 1992
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25
US-DPC Test Report
January 1992
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US-DPC Test Results
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US-DPC Test Results
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US-DPC Test Results
January 1992
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US-DPC Test Report
January 1992
The cooling of the current leads was performed so that cold helium vapor or liquid helium
was supplied to the current leads by pressurizing the 20,000-liter liquid helium dewar
through six parallel supply lines with a supplying pressure head of around 0.02 MPa.
Unbalanced cooling flow distributions sometimes occurred in such operation. In practice,
according to Table 6.2, the heat loads for the pancake No. 1 and No. 6 were 2.6. to 8.1 W
and 6.1 to 66 W with cold helium vapor cooling and -34.6 to 12.2 W and -30.5 to 9.6 W
with liquid helium cooling. Note that the negative heat load means that the pancake heat
should conduct to the current lead. Heat loads for pancakes No. 1 and No. 6 account for
almost all of the coil heat load.
In the stand-by mode, where the total cold helium vapor supplied to each current lead was
approximately 0.2 g/s, the total heat load of the US-DPC was approximately 66 watts as
listed in Table 6.2 (a). In the US-DPC 30 kA single-coil charge, where a total of 4 to 7 g/s
liquid helium was supplied to the three sets of current leads, the total heat load of the USDPC was approximately 42 watts as listed in Table 6.2 (c).
6.4
Pressure drop performance
6.4.1 Pressure drop performance measurements
During cooldown the Reynolds number of the helium flowing through the coil changed
from a few hundreds to a few thousands, and the pressure drop as a function of mass flow
was observed on pancake No. 1 of the US-DPC. The data were arranged as friction factor
vs. Reynolds number to characterize the coil pressure drop performance.
6.4.2 Data arrangement
1) Reynolds number
The Reynolds number (Re) is calculated from the following formula:
Re =
(6.1)
g Ah
where rh is the mass flow rate (g/s) of the pancake, Dh is the hydraulic diameter (cm) of
the pancake, p is the helium viscosity (g/cm-s), and Ah is the helium cross-section (cm 2 ) of
the pancake.
2) Friction factor (Darcy's friction factor)
The Friction factor (f) is calculated from the following formula:
f = 2pgDhAhAP
(6.2)
where g is gravity acceleration (981 cnVs 2 ), p is helium density (g/cm 2 ), AP is pressure
drop through the pancake (gf/cm 2 ), and L is the length of a flow channel (cm).
30
January 1992
US-DPC Test Report
3) Helium density and viscosity
The helium density and viscosity were calculated by using the average temperature and
pressure of the pancake at the inlet and outlet:
Tav = 0.5 (Ti + TO),
(6.3)
Pav = 0.5 (Pi + PO)
(6.4)
where Tav is the average temperature (K), Tj is the helium inlet temperature (K) of the
pancake, T. is the outlet temperature of the pancake, and Pav' Pi and PO refer to average,
inlet, and outlet pressure (atm), respectively.
4) Helium cross-section (Ah)
There are two flow paths in a coil pancake: the main-flow channel for cable-cooling
and the sub-flow channel for conductor cooling, as shown in Figure 6.7. The helium cross
section of the main-flow channel is 0.743 cm 2 and that of the sub-flow channel is
0.536 cm 2 .
5) Hydraulic diameter (Dg)
The hydraulic diameter is defined as follows:
1) = 4 Ah
(6.5)
where Pe is wetted perimeter. The wetted perimeter for the main-flow channel is 61.44
cm, and 11.76 cm for the sub-flow channel.
The hydraulic diameter is estimated as a composite hydraulic diameter for both flow
channels based on the parallel flow circuit as shown in Figure 6.7. In the laminar flow
regime, the pressure drop for each flow channel is expressed as follows:
(6.6)
AP = Ch1
AhlDC
AP = Crh2
(6.7)
Ah2dh2
where C is a constant, the subscript 1 refers to the main flow channel, and the subscript 2
refers to the sub flow channel. The total mass flow rh is expressed as rh = tih + rh2 .
Using these relationships, the pressure drop as a function of the total mass flow is
expressed as:
AP
(6.8)
Crh
Ahldh + Ah2D2
31
US-DPC Test Results
..................
January 1992
S.........................................
Sub-channel flow path
m2
Main-chanfiel flow path
Sub-channel flow path
Main-channel flow path
&&
&
Figure 6.7 - The model used to estimate the composite hydraulic diameter for the sub-channel flow and the
main-channel flow of the conductor.
32
US-DPC Test Report
January 1992
The pressure drop is expressed as a function of the composite hydraulic diameter (Dh) and
the helium cross section (Ah) as follows:
(6.9)
AP = Cr
Ahh
Thus, the composite hydraulic diameter is:
Dh-=
(6.10)
j +hAh 2D
Ahl
Ah
The composite hydraulic diameter is determined to be 0.1236 cm.
Pressure drop performance results
Using the values as defined above, the friction factor as a function of Reynolds
number is shown in Figure 6.8. In this figure the Haugen-Poiseuille relation for the
laminar flow regime of a smooth tube is also shown. The empirical relationl, which
modifies the formula of Plandtl-Karman as:
6.4.3
ffT = 0.87 1n (Re IT) + A
(6.11)
is also shown in Figure 6.8. Here, A is selected to be 3.0 to fit the data.
The data show the friction factor to be higher than the friction factor determined by
the Haugen-Poiseuille and Blasius relations. The transition region from laminar flow to
turbulent flow could not be defined easily. The empirical relation shows good agreement
for the data up to Reynolds numbers of a few thousand.
Another estimation of the composite hydraulic diameter is performed by attempting to
fit in the data to the Haugen-Poiseuille relation at the region of the low Reynolds number,
the definition of the composite hydraulic diameter for this analysis is:
(6.12)
Dh = AhjDh1 + Ah2Dh2
Ah
where it is assumed that AhDh is the key parameter for determination of the relationship
between the pressure drop and mass flow rate through the pancake. The arithmetic average
of AhiDhi + Ah2Dh 2 is taken into account for the parallel flow circuit, and D is calculated to
be 0.1045 cm. The pressure drop performance plotted as the friction factor versus
Reynolds number is shown in Figure 6.9.
In Figure 6.9, the relations of Haugen-Poiseuille, Blasius, and the empirical formula,
where A was chosen as 2.7 to fit in the data, are also plotted. The data are close to the
Haugen-Poiseuille relation to Reynolds numbers of a few hundreds.
References
1. E. Tada, et al., "Thermal Performance Results of the Nb-Ti Demo Poloidal Coils
(DPC-U1, U2)", Proc. MT-11 (1989) p. 830.
33
January 1992
US-DPC Test Results
10
N1
-0.87 Ia(Rejr)+A A=3.0
0.1
C
Bsus
0.01
ringi)
----
10000
1000
100
10'
Reynolds number (ft)
Figure 6.8 - Pressure drop performance of pancake no.] using an estimated hydraulic diameter of 0.1236 cm.
N'%
10
Blasus line
.01
c~.87 W(RCJI)+A
1
.
:A-V.
0.10
0
(Imbuleni flow Rgime)
10
1000
100
10000
RcynoWds number (Rt)
Figure 6.9 - Pressure drop performance of pancake no.1 using an estimated hydraulic diameter of 0.1045 cm.
34
US-DPC Test Report
7.
January 1992
Single-coil DC test results
Tests of the US-DPC alone established that the coil was leak tight (1-2 gTorr vacuum)
under moderate mechanical loads, the cryogenic system was working properly, the lap joint
resistances were low (< 0.5 nK at 30 kA with 2.2 T at lap joints), the protection system
was working, and there was no significant damage to or degradation of the Nb 3 Sn cable.
7.1 Examination of voltage traces of runs 13 - 25 and 32 - 38
Most of the data for dc runs is contained as folding strip chart records and some as
digital memory records. The x-t traces of runs 13 - 25 and 32 - 38 were investigated with
concentration on the crossover turns A, B and C. The investigation attempted to answer
questions such as the following. Was there any evidence of normal zones not observed
during the experiment? Since coil quenches originated mostly in the crossover of double
pancake C, was there more voltage noise on the crossover of C than on A or B? If so, was
it repeatable? Was it dependent on ramp rate?
The investigation considered folding strip charts designated XT-02: nos. 1, 2, 3 and 3'
and digital memory data where available. Crossover-turn voltages A, B and C and coil
current were considered. The study examined upward ramps and flattops; downward
ramps and flattops were not examined. The observations were found to be:
1)
Noise on voltage traces was not reproducible from run to run (see Fig. 7.1). It did not
happen at the same currents or ramp rates. There was a small amount of noise at zero
current before most runs.
2) Noise of significant amplitude on the three crossover turns was simultaneous and
geometrically similar. There was no occurrence of isolated signals of significant amplitude
on A, B or C. "Significant amplitude" means voltage spikes greater than about 10 jtV (note
that critical voltage was defined as 3.30 m x 10 pV/m = 33 jtV). See Fig. 7.2.
3) The ratio of inductive voltage signals A:B:C during ramps was identical to the ratio of
significant-amplitude noise signals A:B:C in all cases examined. The ratio was
approximately 1 : 1.33 : 1.52. (Note that resistive (?) voltages altered the ratios slightly
at higher currents by adding or subtracting resistive signals to the inductive signals.)
4) The noise was not periodic. It was not sinusoidal. It appeared as sequences of single
spikes, sometimes closely spaced and sometimes not. There were both noisy (run 23)
and noise-free (run 24) runs.
5) There were apparently resistive voltages at the current flattops (current transfer?
electronics? thermoelectric?), which were fairly consistent and reproducible in all runs
examined. Crossover A developed negative voltages at nonzero currents, B developed
positive voltages, and C developed predominantly negative voltages. As an example,
measurements from runs 18 and 20 are listed in Table 7.1 ( ±3 p.V).
35
January 1992
US-DPC Test Report
Run 20 - first charge from 21 to 30 kA
(normal flow)
20
10
30
Run 23 - second charge to 30 kA
(normal flow)
4.)
U
4)
ITT
.VV11 I
I
Ii
Iir
Run 24 - third charge to 30 kA
(no corner flow)
0
4.)
Id~ ''
z
20's
'30
Run 25 - fourth charge to 30 kA
(no cable-space flow)
III,
1
10
'20
'30
'
Time (minutes)
Figure 7.1 - Illustration of noise voltages on runs 20, 23, 24 and 25 for upward ramps and flattops to 30 kA.
The four sketches show that the noise was not reproducible from run to run.
4;4. h
.t
T
r
7
VO
"tv
1~
Figure 7.2 - Noise voltages for run 13 on crossovers A, B and C. The signals were simultaneous and in fixed
proportion to each other, indicative of inductive voltages. The offsets in time are due to the staggered placement
of the chart recorder pens. The vertical sensitivity is 50 gV/cm and the horizontal sensitivity is 1 min/cm.
36
January 1992
US-DPC Test Report
Table 7.1 - Voltages at current flattops (di/dt = 0) for runs 18 and 20.
Run 18
A
V (V/I)
Current
B
V (V/I)
C
V (V/I)
9 kA
15 kA
18 kA
-6 pV (-0.7 nQ)
-18 gV (-1.2 nQ)
-22 V (-1.2 nQ)
+ 12 pV (1.3 nQ)
+ 19 gV (1.3 nQ)
+ 20 gV (1.1 nK2)
-5 p.V (-0.6 nQ)
-12 gV (-0.8 nQ)
-16 gV (-0.9 nQ)
21 kA
-26
+ 28 pV (1.3 nIQ)
- 18 pLV (-0.9 n92)
V (-1.2 nK2)
Run 20
Current
9 kA
15 kA
18 kA
21 kA
24 kA
27 kA
28.2 kA
B
V (V/I)
A
V (V/I)
-10 gV (- 1. 1 nQ)
-18 gV (-1.2 nQ)
-20 gV (- 1. 1 nQ)
-22 pV (-1.0 nQ)
-27 gV (-1.1 nf)
-32 gV (-1.2 nQ)
shorted VT
+ 10 V (1.1
+ 18 pV (1.2
+ 22 gV (1.2
+ 30 gV (1.4
nQ)
nK2)
n92)
nQ)
+ 30 gV (1.4 nQ)
+ 41 pV (1.5 n9)
+.40 gV (1.4 nO)
C
V (V/I)
+9 gV (1 nO)
+5 gV (0.3 nO)
- 5 gV (-0.3 nO)
- 9 gV (-0.4 nO)
- 8 gV (-0.3 nO)
-9 pV (-0.3 nQ)
-8 lV (-0.3 nQ)
6) During the intermediate ramps with the dc power supply, there were either significant
resistive, as well as inductive, voltages on the crossover of B or the inductive voltage
increased linearly in time (ramp rates from 5 kA/niin to 30 kA/min - runs 32 to 38).
See Figure 7.3 and Table 7.2.
7) There were insignificant voltages on the crossovers of A and C during the intermediate
ramps, which are difficult to resolve. The A voltage was negative and the C voltage
positive; both were roughly 20 pV at the end of the ramp (30 kA). See Figure 7.3.
8) During the intermediate ramps with the dc power supply, the inductance of crossover B
appeared to decrease by roughly 2 - 4 % going from 5 kA/min to 30 kA/min. See Table
7.2.
9) There were isolated small-amplitude noise spikes on the crossover of A which were not
evident on either B or C. They were predominantly of negative polarity and of roughly
5 - 10 gV amplitude.
10) The time stability of the instrumentation amplifiers appeared to be excellent. The drift
was less than approximately 1 - 2 gV at sensitivities of 50 gV/cm.
37
US-DPC Test Report
January 1992
33
Figure 7.3 -Comparison of induced voltages in crossovers B and C during a ramp to 30 kA at 10 kA/min (run
33). The resistive voltage component on B can be modeled as a constant resistance of roughly 3 nK or a linear
increase in inductance with current. Typical geometrically-similar noise signals can be seen also on B and C.
Table 7.2 - Apparent inductance of crossover B at the beginning and end of intermediate ramps to 30 kA
(runs 32 to 38). The voltage Vi denotes voltage at the beginning of the fast ramp, which was at a current of
approximately 1 kA, not 0 kA, since an initially slow ramp was required to lessen the inductive signal due to the
Incoloy magnetization. The voltage Vf denotes voltage at the end of the fast ramp.
Run
32
33
34
35
36
37
38
di/dt
di/dt
Vi
Vf
Vidt/di
Vfdt/di
5'kA/min
10
15
20
25
30
30
83.3 A/s
166.7
250
333.3
416.7
500
500
545 gV
1090
1600
2125
2650
3175
3150
555gV
1110
1650
2175
2725
3250
3250
6.543 pH1
6.540
6.400
6.375
6.360
6.350
6.300
6.660 kH
6.660
6.660
6.525
6.540
6.500
6.500
38
US-DPC Test Report
January 1992
7.1.1 Nature of noise signals
The noise signals of significant amplitude were inductive in nature. That is, flux from
the noise events linked the three pick-up loops of the crossover-turn voltage taps in exactly
the same way that flux from the transport current linked the loops. This implies that the
noise source was common to the three crossovers and may have been due to the power
supply, because it is difficult to see how a local perturbation in current could yield signals
that were exactly proportional to the ramp-up signals. (Local events would generate bigger
voltage signals in the loops that were closer and smaller signals in the loops that were
further from the source.) The higher noise on C was due to a slightly larger Faraday's law
pick-up loop relative to A and B; the area ratios of the loops A:B:C is 1 : 1.33: 1.52.
The isolated small-amplitude noise spikes on the crossover of A were not evident on
either B or, more importantly, on C. One of the goals of this study was to see if there were
any special events on C. This study found nothing special or unusual in the behavior of C
relative to A and B.
7.1.2 Additional resistive/inductive voltages
The observed voltages on the crossovers during flattops can be explained by a current
transfer mechanism, which is a function of the location of voltage taps relative to where the
transfer takes place. This is the only way to rationalize the occurrence of negativeresistance voltage signals, if it is assumed that the instrumentation amplifiers were stable in
time and that thermoelectric effects were not present.
The growing voltage on crossover B during the intermediate ramps (runs 32 - 38)
implies either a fixed resistance above the "current transfer" value, present only during the
ramps, or an increase in inductance during the ramps. An increase in inductance could
have at least two causes. They are either a redistribution of current in the cable (current
moves radially inward in strands) or an increase in the area enclosed by the crossover turn
due to Lorentz forces. The observed linear change in inductance is more likely due to a
current redistribution than an area change, because the crossover radius will grow linearly
with applied force; applied force is proportional to current squared, and loop area is
proportional to radius squared. This implies that the inductance would not vary linearly,
rather it would vary roughly as the sum of two terms, the first with current squared and the
second with current raised to the fourth power.
7.2 Current-sharing temperature measurements
The coil was first charged to a given current and then the inlet helium temperature was
slowly increased by using two resistive heaters shown as a main heater and a sub-heater in
Figure 5.9. The temperature was adjusted by the input power of the main heater (100 W to
400 W). The sub-heater power was always 70 W which made the A and B double
pancakes warmer than C. The helium temperature was continuously raised until resistive
voltage was observed on the crossover turn (innermost turn). The crossover turn voltage
of the center double pancake (B) rose first, followed by that of coil A. The temperature
increment near the critical point was about 0.3 K per minute.
Figure 7.5 shows crossover turn voltages of B and C as a function of inlet helium
temperature. As seen in this figure, the crossover voltage of B increased gradually with
increasing temperature. On the other hand the voltages of A and C decreased. Similar
39
January 1992
US-DPC Test Report
behavior of the crossover voltages was observed in critical current measurements which
will be shown in the next section. The gradual slope of crossover voltage was separated
by an extrapolation of a straight-line fit in order to read current-sharing temperature and
critical current.
Table 7.3 shows the measurement results of current-sharing temperatures. Data were
obtained at an electric field criterion of 10 pV/m.
Run #73
B coil crossover voltage
VP-34
I
'.-
I~.v
USVP-56
C coil crossover voltage
I
i
9
INLET HELIUM TEMPERATURE (K)
aI
t
I
I
15
Figure 7.5 - Reproduced crossover turn voltage traces of double pancakes B and C as a function of inlet helium
temperature measured by carbon-glass sensor USTC01 (Run #73).
Table 7.3 - Results of current-sharing temperature measurements.
Run
Current
Field
Temperature
73
28
29
30
43
44
5.0 kA
10.0
15.0
20.1
25.1
30.0
0.94 T
1.9
2.8
3.8
4.7
5.7
14.8 K
13.6
12.5
11.6
10.5
9.3
40
January 1992
US-DPC Test Report
Critical-current measurements
In critical current measurements, temperature was first raised in the same method as that
of the current-sharing temperature measurements. Temperature was stabilized at a given
value, and then the coil was charged until resigtive voltage was observed on the crossover
turn of the center double pancake as seen in Figure 7.6. Part (a) of this figure shows
crossover turn voltages of B and C and inlet helium temperature as a function of current.
The crossover voltage of double pancake B increased gradually with increasing current,
and the voltages of A and C decreased as seen in the current-sharing temperature
measurements. However, the voltage of the entire pancake (75 m), including a half of a
crossover turn, did not develop a significant slope as shown in Figure 7.6 (b).
Table 7.4 shows the measurement results of critical currents at an electric field criterion
of 10 sV/m. The current ramp rates were 0.2 kA/min (Run #45), 0.5 kA/min (Run #46),
and 1 kA/min (Run #72). In this table the shape-exponent parameter n is also shown,
which has been defined as follows,
7.3
V = VO(VIO
where I0 is a current at a reference criterion voltage V0 . In this analysis, the gradual slope
of the crossover voltage was separated from the measured voltage by a straight-line fit.
Figure 7.7 summarizes the results of critical current and current-sharing temperature
measurements. Solid triangles and circles show critical current and current-sharing
temperature results, respectively. Two other data sets, obtained from single-strand tests,
are also plotted in this figure. The open squares show critical temperatures estimated from
the temperature dependence of critical currents of single wires similar to US-DPC wire
measured at the University of Wisconsini. Open circles in figure 7.7 were obtained from
an interpolation of the zero-current critical temperature Tc*(B) obtained at Oxford
University for a bronze-matrix Nb3 Sn wire 2 and the critical currents of US-DPC wire
measured at MIT 3.
As seen in Figure 7.7, the performance of the US-DPC was slightly better than the
predictions from single wire data. This could be explained by a lessening of the uniaxial
strain effect created by mechanical coupling of the superconducting cable to the low
thermal-coefficient-of-expansion Incoloy 908 conduits 4 .
The strain effect has been evaluated by using a critical current equation developed by
Summers et a15 . They obtained the following criti cal current formula as a function of field
B, temperature T and uniaxial intrinsic strain e, on the basis of previous work of
Hampshire et al 6 for temperature dependence, and Ekin 7 for strain dependence.
Ic(B,T,8) = C(e) {Bc2 (T, e)}-1/2(1-t 2 ) 2 b-1/ 2 (1-b) 2
(A)
where
C(e)= C 0 (l-a IESu)1/2
(AT1 /2 )
2 ){ 1 - 0.31 2
Bc 2 (T, e) = Bc M(E)(l-t
t (1 - 1.77 ln(t)))
2
(T)
Bc2o(e) = Bc20m (1-aleu)
(T)
41
(7.1)
January 1992
US-DPC Test Report
t = T/TC0(e)
b = B/Bc2(T,E)
Tc0 (e) = Tcom (1-a lrIu)1/w
(K)
a = 900 for e <0, 1200 for e > 0
u = 1.7
w=3
Bc2Om = Maximum (strain-free) upper critical field
Tcom = Maximum zero-field critical temperature
(T)
(K)
C0 = Coefficient independent of field, temperature, and strain
(AT1/2)
e = Uniaxial strain
The last four items are input parameters for curve fits. Three parameters (Bc20m, TcOm,
and C0 ) are related to the material properties of the superconductor. The strain e relates to
sample fabrication or handling and operating conditions (temperature, Lorentz force).
When Bc2Om= 2 7 .5 T, Tcom= 16 K, and C0 = 8800 AT1/2 were selected for curve fits
of single-wire and US-DPC coil data, the resulting fits to Equation 7.1 were made by
adjusting strain values only4. The US-DPC coil showed a strain of -0.1%. Single-strand
samples on a stainless steel barrels tested at MIT showed intrinsic uniaxial compressive
strains of about -0.36%. The two solid lines in figure 7.7 are calculated from Equation 7.1
with intrinsic strains E = -0.10% and -0.46%. The critical current data at temperatures
between 2.5 K and 11 K measured at the University of Wisconsin were confirmed to fit
Equation 7.1 with 8 = -0.46% with Bc2Om, Tc0 m, and C0 the same as above. Experimental
strain data of the US-DPC wire measured by Ekin and Bray have been shown to agree
fairly well with the calculated data obtained from Equation 7.1 using the above selected
parameters.
Table 7.4 - Results of critical-current measurements.
Run
Temperature
Current
Field
n
45
46
72
11.8 K
11.0
10.2
19.02 kA
22.94
26.65
3.6 T
4.3
5.0
35
27
20
42
US-DPC Test Report
January 1992
Run #72
125 RV
B coil crossover voltage
USVP-34
C coil crossover voltage
USVP-56
I
I'
125 IIV
jUI
Inlet helium temperature
USTC01
10. 2 K
0
8
4
12
16
20
24
28
CURRENT (kA)
(a)
Voltage of top pancake of B
coil
USVP 3
150 gV
I11It
1
1 min
TUE
(1 kA)
(b)
Figure 7.6 - Reproduced traces of (a) crossover turn voltages of double pancakes B and C, and inlet helium
temperature as a function of charge current, and (b) entire pancake voltage of top pancake of double pancake B
(Run #72).
43
US-DPC Test Report
January 1992
16
14
12
E=-
I-
10 %
10
E -0.46 %
LI-
8
*
Tcs Measurements
A Ic Mea urements
'
0 Ut.-of -W nsinty6
-(sD
a 4.2K
Ic
Measured
o Interpol tion from
and TcfBronze Nb33n, U. of O ord)
6
-e)-
4
0
2
4
6
MAGNETIC FIELD
8
B
10
(T)
Figure 7.7 - Test results of critical current and current-sharing temperature for the US-DPC coil with
expectations obtained from single-strand data. The solid lines were obtained from Eq. 7.1 with intrinsic
strains e = -0.10% and -0.46% using Bc2Om= 27.5 T, Tcom= 16 K, and C= 8800 AT 112.
7.4
Simulated nuclear heating and AC loss calibration
In order to investigate the performance of the US-DPC under nuclear heating loads,
cable heating wires were installed in double pancakes A and B (see Figure 5.2). Runs 39
and 40 are runs in which the cable heater of B was energized, and the following two
sections provide analysis of these runs. Section 7.4.1 presents quantitatively the areas of
stable operation maintained under heat loads from the cable heaters, and section 7.4.2
calibrates the AC loss measurement technique by using the cable heaters to provide a
known energy input into double pancake B.
7.4.1 Stability of US-DPC under nuclear heat loads
The 150 m length coaxial cable heater of double pancake B was energized in runs 39
and 40 to deposit a known power per unit length in the conductor during steady-state dc
operation. Inlet flow conditions to the entire coil were set at an absolute pressure of 7.1
atmospheres, a temperature of 4.6 K and a mass flow of approximately 60 g/s. Current-
44
January 1992
US-DPC Test Report
versus-time profiles that indicate when the heater was energized are given in Figure 7.8.
In Run 39, the US-DPC was charged at 10 kA/min to 20 kA and the heater charged at a
current of 0.78 A to deposit a power of approximately 84.2 watts(= 0.55 w/m) in the cable
based on a measured heater resistance of 135 9 at 4.5 K. The heater was then turned off and
the current ramped at 10 kA/min to 30 kA where the heater was turned on again at 82.1 w.
The coil was completely stable with no observed resistive voltages, but with observed flow
choking at the helium inlet of double pancake B.
In run 40, the US-DPC was charged at 10 kA/min to 30 kA and the heater energized to
approximately 100, 152 and 208 w respectively (maximum power was limited by flow
choking at the B helium inlet). No normal voltages were observed. After the heater was
turned off, the coil was dumped successfully from 30 kA into the 49.3 mn dump resistor.
This was the second full-current dump of the US-DPC.
7.4.2 Calibration of mass flow in AC loss measurements
This section presents an investigation of nuclear heating run 40 for the purpose of
estimating the total mass flow in double pancake B. The method uses the known heater
power as a basis of estimating a total outlet flow that would give the observed temperature
rises (changes in enthalpy) in the four outlets of B. The goal of this comparison of
"estimated flow from temperature rises" to "measured flow by meters" is to calibrate the
AC loss measurements given in later sections and to estimate their level of accuracy.
Assumptions
1) During the heat-pulse flattop, thermal equilibrium was established (steady state,
steady flow process).
2) The outlet pressures were constant and unchanged by the heating pulse.
3) Heater power during the pulse flattop was constant and equal to 151.7 watts.
4) The outlet temperature measurements via the CGR's were accurate.
5) The mass flow - pressure drop equations provided by JAERI are accurate in the
range of operation considered.
6) The mass flows in pancakes 1 and 2 were equal to each other; the mass flows in
pancakes 5 and 6 were equal to each other.
7) Mass flow may be estimated by using the average enthalpy difference determined
from the four outlets of double pancake B.
Results
Based on the difference in outlet temperatures before and during the heating interval,
the estimated total mass flow through coil B for run 40, DM-48 was 17.60 g/s. The
measured total mass flow from USMC-04, 05, 06, 07, using the JAERI pressure drop
versus mass flow equations, was 17.12 g/s. The ratio of "estimated by temperature rises"
to "measured by flow meters" is 17.60/17.12 = 1.028.
45
January 1992
US-DPC Test Report
Current (kA)
82.1 w
30
84.2 w
20
Run 39
10-
15
0 2
30 33
Time (min)
Current (kA)
100 w
30 I
20
-
152 w
208 w
I
Run 40
10
-
03
5457
Time (min)
Figure 7.8 - Current-versus-time profiles for single-coil dc nuclear-heating runs 39 and 40. The coil was
charged and discharged at 10 kA/min. Flat top times are approximate. The heater was energized 3 to 4 minutes
at the power levels shown. No normal voltages were observed at any time.
Analysis
The method of analysis is outlined here. The experiment was designated run 40, DM
48. The heater was in the center of double pancake B; it had a resistance of 135 Q at 4.5
K. The heat pulse was trapezoidal with approximately a 20 s rise time, a 200 s flattop, and
a 20 s fall time. The heater power during the 200 s flat top was 151.7 w. The
temperatures before and during the pulse are listed in Table 7.5.
The pressures before and during the pulse are assumed equal. This assumption is
based on an examination of the XT traces of the pressure transducers in which the pressure
rise during the pulse was observed to be no more than approximately 3 - 5 % (see XT-3
records). Table 7.6 lists the appropriate helium enthalpies.
46
January 1992
US-DPC Test Report
Table 7.5 - Outlet temperatures measured by calibrated carbon glass resistors before and during the heat
pulse by the cable heater. Precision is = 0.75 mK.
Outlet Location
Sensor
Tduring
Tbefore
pancake 1
pancake 2
pancake 3 - cable
pancake 3 - corner
pancake 4 - comer
pancake 4 - cable
pancake 5
pancake 6
TC03
04
05
06
07
08
09
10
4.928 K
5.025
5.990
6.000
5.880
6.100
4.632
4.784
4.898 K
4.902
4.690
4.730
4.670
4.750
4.527
4.760
AT = Tduring - Tbefore
0.030 K
0.123
1.300
1.270
1.210
1.350
0.105
0.024
Table 7.6 - Outlet temperatures, absolute pressures and enthalpies for run 40, DM 48.
Outlet Location
Pressure
Tduring
hdUring
Tbefore
hbefore
pancake 1
pancake 2
pancake 3 - cable
pancake 3 - corner
pancake 4 - comer
pancake 4 - cable
pancake 5
pancake 6
5.17 atm
5.17
5.15
5.16
5.13
5.13
5.12
5.12
4.928 K
5.025
5.990
6.000
5.880
6.100
4.632
4.784
14.05 J/g
14.50
20.76
20.83
19.97
21.99
12.74
13.41
4.898 K
4.902
4.690
4.730
4.670
4.750
4.527
4.760
13.92 J/g
13.94
13.00
13.18
12.91
13.26
12.28
13.30
Parasitic losses
The parasitic heat losses to A and C were calculated assuming mass flows in these
double pancakes to be as measured by inlet meters MC01 for A and MC03 for C. The
equations of the meters were given by JAERI and are thought to be accurate based on
calibrations of at least one meter with water. They are:
USMC01 and 02:
USMC03:
where
th = 2.36 (p AP) 0 .5
th = 4.86 (p AP)0- 5
p = helium density [g/ccl
AP = pressure drop across orifice [mm Aq]
The unit "mm Aq" stands for millimeters of water, where 1 atm = 10,334 mm Aq at 4 C.
The densities and pressure drops for calculations of mass flow in A and C are listed in
Table 7.7.
47
US-DPC Test Report
January 1992
Table 7.7 - Supercritical helium absolute pressures, temperatures, densities and pressure drops for A and C
inlets.
Location
Pressure
Temperature
Density
-Pressure Drop
A
PTO1
6.08 atm
TC01
4.616 K
NBS 631
0.1388 g/cc
MC01
375 mm Aq
C
PTO2
5.96
TC02
4.506
NBS 631
0.1402
MC03
278
The calculated mass flows into A and C are thus
ih (A) = 17.0 g/s
ih
(C) = 30.0 g/s
The parasitic losses from B to A and C during the nuclear heating pulse can be estimated
using these flows. They are
Loss to A
PA =
0.5 rm [(hduring - hbefore)i + (hduring - hbefore)2]
PA = 0.5 (17.0) [(14.05 - 13.92) + (14.50 - 13.94)] = 5.87 watts
and
Loss to C
PC = 0.5 rh [(hduring - hbefore)i + (hduring - hbefore)2]
Pc= 0.5 (30.0) [(12.74 - 12.28) + (13.41 - 13.30)] = 8.55 watts
The total parasitic loss is then estimated to be 5.87 + 8.55 = 14.4 watts.
Mass flow from enthalpy
The mass flow from double pancake B can now be estimated. It is
rh = P(heater) - P(parasitic)
0.25
mdot = (Ph - P)/
(hduring
- hbefore)i
0.25 ((hd - hb) 3 ca + (hd - hb)3 co + (hd - hb) 4ca + (hd - hb)4co)
mdot = (151.7 - 14.4) / 0.25 (20.76 -13.00 + 20.83 -13.18 + 19.97 - 12.91 +21.99 - 13.26)
mdot = 137.3 / 0.25 (31.20) ~ 17.60 g/s
48
January 1992
US-DPC Test Report
Mass flow from JAERI meters
The mass flows for the four outlets of B, based on the orifice flow meter calibrations,
are calculated using the formula
rh = 1.18 (p AP) 0 .5
USMC04 - 07:
The densities and pressure drops required for the mass flow calculation are given in Table
7.8.
Table 7.8 - Supercritical helium absolute pressures, temperatures, densities and pressure drops for mass
flow calculations at double pancake B outlets.
Location
3 - cable
3 - corner
4 - corner
4 - cable
Pressure
Temperature
Density
Pressure Drop
PTO4
5.15 atm
PT05
5.16
PT06
5.13
PTO7
5.13
TC05
5.990 K
TC06
6.000
TC07
5.880
TC08
6.100
NBS 631
0. 1046 g/cc
NBS 631
0.1044
NBS 631
0.1081
NBS 631
0.0997
MC04
95 mm Aq
MC05
139
MC06
168
MC07
108
The mass flows at the outlet of double pancake B are thus calculated to be:
t (3 - cable) = 1.18 (0.1046x95) 0 .5 = 3.72 g/s
th (3 - corner) = 1.18 (0.1044x139)0. 5 = 4.50 g/s
th (4 - corner) = 1.18 (0.1081x168) 0 .5 = 5.03 g/s
th (4 - cable) = 1.18 (0.0997x108)0. 5 = 3.87 g/s
The total mass flow from the JAERI meters adds up to 17.12 g/s.
Conclusion
One of the nuclear heating runs has been used to estimate the accuracy of the measured
mass flows in the double pancake B. Subject to the stated assumptions, it is concluded that
the mass flows calculated from the measured pressure drops across the outlet flow meters,
the fluid density, and the equations provided by JAERI are accurate to within 3%. The AC
loss measurements should be roughly at this level of accuracy, because the parasitic losses
(or gains) to (or from) double pancakes A and C are limited by the small temperature
gradients between B and A and C.
49
January 1992
US-DPC Test Report
References
1. D. P. Hampshire and D. C. Larbalestier, "The critical density throughout the
superconducting phase of multifilamentary Nb 3 Sn wire for forced flow fusion
applications measured using the Bean-Campbell ac magnetization technique," IEEE
Trans. Mag., 25:2382 (1989).
2. P. A. Hudson, F. C. Yin, and H. Jones, "The critical current density of filamentary
Nb 3 Sn as a function of temperature and magnetic field," IEEE Trans. Mag., 19:903
(1983).
3. M. Takayasu, C. Y. Gung, M. M. Steeves, M. 0. Hoenig, J. R. Hale, and D. B.
Smathers, "Critical currents of Nb 3 Sn wires for the US-DPC coil," IEEE Trans.
Mag., 27:1767 (1991).
4. M. Takayasu, M. M. Steeves, T. A. Painter, C. Y. Gung, and M. 0. Hoenig,
"Comparisons of AC losses of Nb3 Sn single strands and US-DPC conductor," CECICMC conference, Huntsville, Alabama, June 1991.
5. L. T. Summers, M. W. Guinan, J. R. Miller, and P. A. Hahn, "A model for the
prediction of Nb 3 Sn critical current as a function of field, temperature, strain, and
radiation damage," IEEE Trans. Mag., 27:2041 (1991).
6. D. P. Hampshire, H. Jones, and E. W. J. Mitchell, "An in-depth characterization of
(NbTa) 3 Sn filamentary superconductor," IEEE Trans. Mag., 21:289 (1985).
7. J. W. Ekin, "Strain scaling law for flux pinning in practical superconductors. Part 1:
Basic relationships and application to Nb 3 Sn conductors," Cryogenics, 20:611
(1980).
8. J. W. Ekin and S. L. Bray, National Institute of Standards and Technology, Boulder,
Colorado, Private Communication.
50
US-DPC Test Report
January 1992
Series-coil DC test results
8.
In runs 47 - 59 the US-DPC was connected in series electrically with the Ul and U2 and
charged by the DC power supply. A maximum current of 25.9 kA was reached before a
quench of the Ul coil brought the test to a halt. Figure 8.1 shows the complex charging
waveform of run 58, the maximum current run. The waveform reflects the experience of the
JAERI staff at charging the U1 and U2 coils to currents above approximately 12 kA. That is,
the triangular-wave pattern was thought to be necessary to achieve stability in U1 and U2
during ramps above 12 kA.
The inlet flow conditions of the US-DPC at various times during run 58 are summarized
in Table 8.1.
I(kA)
30
100/100/200/200/500/500
.50
-
0
30 n
100/100/200/200/500/500
30 min
20
25.89 k
30 min
100/100/200/200/500/500
1
22:37
50
23:52 0:22
30 min
30 mi0
17:51
19:02
30 min
21:25
20:12
30 m-in
100
106/100/200/200/5 00/500
200/200/500/500/500/500
100
A/min
200/200/500/500/lk/lk:
10
2k/2k/5k/5k/5k/5k
I kA/min
10:24
11:18
14:17
12:41
16:41
Time (h:min)
Figure 8.1 - Charging current waveform for maximum-current DC test (run 58). The test began at 10:24 AM on
12/05/90 and ended with a quench at 25.89 kA of the U1 coil at 22 minutes past midnight on 12/06/90. The
a/alb/b/c/c groups denote ramp rates of the triangular wave patterns thought necessary to stabilize the U1 and U2
coils. There was a waiting period of 30 minutes after each triangular-wave pattern before starting the next ramp.
51
US-DPC Test Report
January 1992
Table 8.1 - The inlet flow conditions at various times during run 58.
Time
Absolute Pressure
2.45 atm
4.07
3.06
4.32
4.35
4.37
10:35
13:29
16:53
19:55
22:38
00:25
9.
Temperature
Mass Flow
39 g/s
39
39
39
39
39
4.2 K
4.2
4.2
4.2
4.2
4.2
Single-coil AC test results
AC losses of the US-DPC have been determined by measuring the changes in the
thermodynamic state of the supercritical helium exiting the coil during and after each pulse.
Although the basic waveforms were trapezoids that had equal upward and downward ramp
times, data from other waveforms are reported for purposes of comparison. The AC loss
measurement method is based on temperature profiles at the exit, such as the one shown in
Figure 9.1, and the assumption that outlet pressures and mass flows were constant. The
short-lived pressure and flow fluctuations due to the pulse were on the order of 5 - 10
seconds duration and negligible when compared to the AC loss measurement periods which
lasted approximately 200 seconds. For a detailed description of the AC loss measurement
technique, see Appendix B. Figure 9.2 shows an index of current-charging waveforms
employed during the AC testing of the US-DPC.
00
C"
U
Sir;
U
H
00
-
in-i-
0I
~rir
-~-i-rm -m~
50
-r-r-r-r
200j
7i-Ti-
250
300
Time t (s)
Figure 9.1 - The temperature profile shows a typical measurement of the supercritical helium coolant as it exits
the US-DPC. This temperature profile results from a triangular current pulse in the single-coil mode (run 88,
pancake 4, corner flow). The absolute pressure was 5.3 atmosphere.
52
US-DPC Test Report
January 1992
triangular
trapezoidal
A
0-
0 -
1
Time
Time
rippled trapezoidal
round-edge trapezoidal
-
U
0-
0Time
Time
AL
multiple trapezoidal
two-step trapezoidal
U
0.
0-
I
11
Time
Time
Figure 9.2 - Index of charging waveforms produced by the JT-60 power supply for AC tests of the US-DPC. The
power supply was capable of 300 MVA at 60 kA and 5 kV.
53
US-DPC Test Report
January 1992
9.1
Single-coil coupling and hysteresis losses
The measured losses of the middle double pancake ("B" - pancakes 3 and 4) for
symmetrical trapezoidal waveforms are plotted against the reciprocal of ramp time with flattop
current as a parameter in Figure 9.3. This type of plot is informative because the loss for a
given flattop current, hence field, can be divided into hysteresis and coupling components by
reasoning as follows.
Experiments have shown that the hysteresis loss per cycle per unit volume of US-DPC
wire subjected to a triangular wave of field with a peak of Bm is approximately
Qh [mJ/cc] = 178.2 (1 - exp(-0.219 Bmi))
(9.1)
It is evident that the hysteresis loss depends only on the maximum value of current, since
field and current are directly proportional. Bundle coupling loss per unit volume of wire,
defined as the loss due to eddy currents that circulate between the eighteen filament bundles
in the wire, is assumed to account for all the remaining AC loss. For ramps of field it takes
the form
Qc [mJ/cc]
= 50.68 BM in (1 + 2.4 x 10-1 RRR Bm)]
tm
(9.2)
where RRR is the residual resistivity ratio of the copper stabilizer (27.2 for the US-DPC).
Combining the two equations shows that in this estimate the total loss depends simply on the
maximum current and ramp time tm. When the maximum current is fixed at some value, a
one-over-tm dependence results
Q(fixed Bm ) [mJ/cc] = a + -
tm
(9.3)
where a and b are constants. This is the basis for the form of most of the AC loss plots that
follow.
As an example of the division of loss into two parts, refer to Figure 9.3. With a 0.3 s
ramp time (1/tm = 1/0.3 = 3.33 s-1) and 20 kA flattop (run 116), the total loss of double
pancake b was 1650 J, with 846 J for hysteresis (at 1/tm = 0) and 804 J for coupling.
Assuming that the other two double pancakes had comparable losses, the sum of losses for
the three is approximately 3 x 1650 = 5000 J, which is 0.14% of the 3.6 MJ stored energy of
the coil (1/2 LI 2 = 1/2 (0.0182)(20,000)2 = 3.6 MJ).
There are two items to be considered in Figure 9.3. First, two data points from triangular
current pulses have been included to allow an estimate of the 30kA flattop-current curve.
One triangular-pulse point, on the 18 kA curve, is seen to be very close to its trapezoidalpulse neighbor. The proximity of these two 18 kA points argues for the triangular loss as an
estimate of the trapezoidal loss and has allowed a 30 kA curve to be estimated by plotting the
curve through the triangular-pulse point at 1/tm = 2 s-1. However, the hysteresis loss
estimated by this method is much higher than would be expected from a (1 - exp (-kB))
relationship. The three trapezoidal-pulse data points by themselves project to a more
believable hysteresis loss of approximately 1500 J. But these three points indicate an
enormously high coupling loss in the 30 kA case. Refer to Section 10.3.2.2.
54
US-DPC Test Report
January 1992
Second, all data were for 60 g/s total helium flows. Similar current pulses for 30 g/s
flows were not included in Figure 9.3 because at the lower flows the mass flow meters were
operating below their design and calibration ranges. The 30 g/s data are thought therefore to
be less reliable. Figure 9.4 compares loss estimates for 20 kA flattop trapezoidal-pulse runs
with total flows of 30 and 60 g/s. The 30 g/s runs result in loss data approximately 50%
above the 60 g/s runs. The 60 g/s curve is taken as a calibration of the 30 g/s runs.
The data presented in Figures 9.5 through 9.16 extend the range to include pancakes 2
and 5 as well as 3 and 4. Note that pancakes 1 and 6 have not been included since their outlet
helium flowed through the coil leads and absorbed their Joule heating loss, thus making
estimates of AC loss unreliable. These figures also show how losses were removed by the
dual-flow cooling scheme. It is seen that 50 % or more of the losses were removed by
corner flow.
55
US-DPC Test Report
January 1992
Without triangular point
4000
kA
kA25
30
30 kAtriangular
3000
22kA
o-o
20 kA
0
2000
18 kA
15 kA
1000
triangular
0
0
1
2
3
4
5
6
Reciprocal of Ramp Time 1/tm (/s)
Im
* 15 kA Loss
* 18 kA Loss
*20 kA Loss
* 22 kA Loss
0 25 kA Loss
0 30 kA Loss
I
- - ---
I
I
y = 579 + 87.9x
y = 596 + 172.Ox
y = 846 + 224x
y = 914 + 374x
y = 1010 + 554x
y = 2140 + 767x
Figure 9.3 - Measured AC loss of pancakes 3 and 4 of the US-DPC for trapezoidal-current pulses in the singlecoil mode as a function of the reciprocal of ramp time with flattop current as a parameter. Two triangular pulses
are also plotted, one at a peak current of 18 kA and the other at 30 kA. The inlet helium flow conditions were
approximately 60 g/s, 6 atm absolute pressure and 4.5 K. The line through the three 30 kA trapezoidal-pulse
data points (without triangular point) intersects the vertical axis at a value closer to the expected hysteresis loss.
56
US-DPC Test Report
January 1992
3000
2000
0
U~
1000
0
0
1
2
3
4
5
6
Reciprocal of Ramp Time 1/tm (1/s)
20 kA Loss 60 - 60 g/s total helium flow
* 20 kA Loss 30 - 30 g/s total helium flow
y = 846 + 224x
y = 1282 + 341x
Figure 9.4 - Calibration of 30 g/s runs against more accurate 60 g/s runs. The 30 g/s curve is thought to
overestimate losses by approximately 50% due to inaccuracies in the flow measurements in the low-flow range.
Measured losses of pancakes 3 and 4 for 20 kA flattop trapezoidal-current pulses in the single-coil mode as a
function of the reciprocal of ramp time are plotted.
57
US-DPC Test Report
January 1992
15 kA Flattop Trapezoidal Runs
Pancake No.
1200
5
1000
107
2
105
800
1021
0
103
101
4
600
C,)
3
"Xm
400
200
0
0
1
2
3
4
5
6
Reciprocal of Ramp Time 1/tm (/s)
Pancake 4
Pancake 3
Pancake 5 y = 708 + 74.x
Pancake 2 y = 476 + 64.8x
y = 319 + 45.3x
y = 259 + 42.7x
Figure 9.5 - Measured AC loss for 15 kA flattop trapezoidal-current pulses in the single-coil mode as a function
of the reciprocal of ramp time with pancake designation as a parameter. The losses of pancakes 3 and 4 are lower
than those of pancakes 2 and 5 due to the field distribution in the single-coil mode (see Figure 6.7).
58
US-DPC Test Report
January 1992
15 kA Flattop Trapezoidal Runs
Pancake No.
60
4
3
5o
o_
4-corner
rj,
30
3-cober
4-cable
0-
3-cable
20
10
0
0
2
1
3
4
5
6
Reciprocal of Ramp Time 1/tm (1/s)
Pancake 3
Cable Pancake 3
Corner Pancake 3
y = 259 + 42.7x
y = 113 + 20.5x
y = 146.5 + 22.1x
Pancake 4
y = 319 + 45.3x
Cable Pancake 4
Corner Pancake 4
y = 120.7 + 21.Ox
y = 198.7 + 24.3x
Figure 9.6 - Measured AC loss for 15 kA flattop trapezoidal-current pulses in the single-coil mode as a function
of the reciprocal of ramp time for pancakes 3 and 4 with corner-versus-cable flow as a parameter. The plot
compares cooling effectiveness of the cable space and corner flow areas - energy removed by corner flow is
greater than that removed by cable flow.
59
US-DPC Test Report
January 1992
18 kA Flattop Trapezoidal and Triangular Runs
Pancake No.
1600
5
1400
137
1200
1-1
2
1000
"Run 83
0Y
4
800
3
600
400
200
0
0
1
2
3
4
5
6
Reciprocal of Ramp Time 1/tm (/s)
Pancake 5
y = 812 + 117.2x
Pancake 4
y = 352 + 80.5x
Pancake 2
y = 563 + 90.2x
Pancake 3
y = 244 + 91.7x
Figure 9.7 - Measured AC loss for 18 kA flattop trapezoidal and triangular current pulses in the single-coil
mode as a function of the reciprocal of ramp time with pancake designation as a parameter. Run 83 designates
triangular-waveform data.
60
US-DPC Test Report
January 1992
18 kA Flattop
00
Pancake No. 4
3
700
600
CA
500
4-corner
3-corner
3-cable
'4-cable
400
CAI
-------
---
300
200
100
0
0
1
2
3
4
5
6
Reciprocal of Ramp Time 1/tm (1/s)
Pancake 3
y = 244 + 91.7x
Cable Pancake 3
y = 102.7 + 45.7x
Pancake 4
Cable Pancake 4
Corner Pancake 4
y = 126 + 39.8x
y = 226 + 40.7x
y = 352 + 80.5x
Corner Pancake 3
y = 141 + 46x
Figure 9.8 - Measured AC loss for 18 kA flattop trapezoidal and triangular current pulses in the single-coil
mode as a function of the reciprocal of ramp time for pancakes 3 and 4 with corner-versus-cable flow as a
parameter.
61
US-DPC Test Report
January 1992
20 kA Flattop Trapezoidal Runs
Pancake No.
5
2000
2139
2
1500
U
14 115
$
212
108
0
4
3
1000
Ru 10911
Q
*
500
--
0
0
1
3
2
4
5
6
Reciprocal of Ramp Time 1/tm (1/s)
Pancake 2
y = 643 + 148.4x
Pancake 3
Pancake 4
y = 362 + 122.lx
y = 451 + 112.3x
Pancake 5
y = 952 + 174.5x
Figure 9.9 - Measured AC loss for 20 kA flattop trapezoidal-current pulses in the single-coil mode as a function
of the reciprocal of ramp time with pancake designation as a parameter. Runs 246 through 249 were omitted
due to low mass-flow rates.
62
US-DPC Test Report
January 1992
20 kA Flattop Trapezoidal Runs
Pancake No. 4
3
1000
800
4-corner
..-
600
3-cable
0n
4-cable
--------------i W 5----- -
400
-
- 3-corner,
- -----
200
----------------
0
0
1
2
3
4
5
6
Reciprocal of Ramp Time 1/tm (1/s)
Pancake 3
y = 362 + 122.1x
Pancake 4
y =451 + 112.3x
Cable Pancake 3
y = 152.7 + 68.3x
Cable Pancake 4
y = 169.2 + 60.8x
Corner Pancake 3
y = 206 + 54.4x
Corner Pancake 4
y = 270 + 60.5x
Figure 9.10 - Measured AC loss for 20 kA flattop trapezoidal-current pulses in the single-coil mode as a
function of the reciprocal of ramp time for pancakes 3 and 4 with corner-versus-cable flow as a parameter
63
US-DPC Test Report
January 1992
22 kA Flattop Trapezoidal Runs
Pancake No.
2000
5
146
1500
127, 202
54
2
Run 142
0
143
1000
4
Q>
x
3
500
0
0.0
0.5
1.0
2.0
1 .5
2.5
Reciprocal of Ramp Time 1/tm (1/s)
Pancake 5
y = 889 + 429x
Pancake 4
y = 484 + 206x
Pancake 2
y = 642 + 255x
Pancake 3
y =430 + 168x
Figure 9.11 - Measured AC loss for 22 kA flattop trapezoidal-current pulses in the single-coil mode as a
function of the reciprocal of ramp time with pancake designation as a parameter.
64
US-DPC Test Report
January 1992
22 kA Flattop Trapezoidal Runs
Pancake No. 4
1000
3
800
U,
0
4-corner
600
3-cable
4-cable
3-corner
400
C-)
200
0
0
1
2
Reciprocal of Ramp Time 1/tm (1/s)
Pancake 3
y =430 + 167.9x
Pancake 4
y = 484 + 206x
Cable Pancake 3
y = 180.9 + 100.2x
Corner Pancake 3
y = 249 + 67.7x
Cable Pancake 4
y = 192.4 + 92.7x
Corner Pancake 4
y = 292 + 113.lx
Figure 9.12 - Measured AC loss for 22 kA flattop trapezoidal-current pulses in the single-coil mode as a
function of the reciprocal of ramp time for pancakes 3 and 4 with corner-versus-cable flow as a parameter.
65
US-DPC Test Report
January 1992
Pancake No.
25 kA Flattop Trapezoidal Runs
1400
5
119
122
120
1200
1000
2
0
800
4
a----
.---------.-..---
600
3
400
200
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Reciprocal of Ramp Time 1/tm (1/s)
Pancake 4
y = 543 + 284x
Pancake 5
y = 1069 + 493x
Pancake 2
y = 711 + 402x
Pancake 3
y = 467 + 270x
Figure 9.13 - Measured AC loss for 25 kA flattop trapezoidal-current pulses in the single-coil mode as a
function of the reciprocal of ramp time with pancake designation as a parameter. Run 233 was omitted from this
graph due to its low mass flow rate.
66
US-DPC Test Report
January 1992
25 kA Flattop Trapezoidal Runs
Pancake No.
800
4
3
1
00.
b
0--
4-corner
400
rA
3-corner
4-cable
3-cable
09
200
--
-- - - - - - - - - - - - - - -
-
- - - - - - -- - - - - - -
------ --
0
0.0
0.1
0.2
0.3
0.4
0.5
Reciprocal of Ramp Time 1/tm (1/s)
Pancake 3
Cable Pancake 3
y = 467 + 270x
y = 203 + 136.4x
Pancake 4
y = 543 + 284x
Cable Pancake 4
y = 221 + 134.6x
Corner Pancake 3
y=
264
+ 133.5x
Corner Pancake 4
y = 3 2 2 + 149.7x
Figure 9.14 - Measured AC loss for 25 kA flattop trapezoidal-current pulses in the single-coil mode as a
function of the reciprocal of ramp time for pancakes 3 and 4 with corner-versus-cable flow as a parameter.
67
0.6
US-DPC Test Report
January 1992
30 kA Flattop Trapezoidal and Triangular Runs
4000
Pancake No. 5
Run 88
3000
4
0
An
Q9
2
3
2000
123, 124, 241
1000
0
0
2
1
3
Reciprocal of Ramp Time 1/tm (1/s)
Pancake 5
y = 1890 + 717x
Pancake 4
y = 1132+ 446x
Pancake 2
y = 1254 + 299x
Pancake 3
y = 1014 + 319x
Figure 9.15 - Measured AC loss for 30 kA flattop trapezoidal and triangular current pulses in the single-coil
mode as a function of the reciprocal of ramp time with pancake designation as a parameter. Run 88 designates
triangular waveform data.
68
US-DPC Test Report
30 kA FlattoD Trapezoidal and Triangular Runs
3000
1-1
January 1992
Pancake No .
2500
4
2000
3
0
2414
1500
123, 14
corner
cable
1000
3
-corner
500
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Reciprocal of Ramp Time 1/tm (1/s)
Pancake 3
y = 1014 + 319x
Cable Pancake 3
y = 463 + 210x
Corner Pancake 3
y = 550 + 109x
Pancake 4
y = 1132 + 446x
Cable Pancake 4
y = 494 + 228x
Corner Pancake 4
y = 638 + 218x
Figure 9.16 - Measured AC loss for 30 kA flattop trapezoidal and triangular current pulses in the single-coil
mode as a function of the reciprocal of ramp time for pancakes 3 and 4 with corner-versus-cable flow as a
parameter.
69
US-DPC Test Report
January 1992
Figure 9.17 is a cross plot of data presented previously showing loss as a function of
flattop current for constant ramp times. These curves show loss energy to approximately
follow a power-law relationship with flattop current:
Q=kF,
where the exponent n lies between 1 and 3 and k is a constant depending on ramp time.
Based on the data trend, it is possible or even likely that the 2.0 and 5.0 second curve fits are
inaccurate above 25 kA and that the "boundary" curve is given by the 11.0 second ramp time.
If this is the case, the exponent may be closer to 2 than to 1 and a current-squared
relationship may be a fair approximation of loss energy as a function of transport current in
the single-coil case.
Figure 9.18 is a plot of average loss power for the single-coil mode that includes data
from both triangular and trapezoidal waveforms. The form of the average loss power
expression follows immediately from the loss energy equations 9.1 and 9.2.
Q = Qh + Qc
(9.4)
Q = a(l
(9.5)
- e-bB) + cl-n(l + d Bm)
tm
where a,b,c and d are constants and d Bm < 1. Noting that for small values of x
ex=1 +x
and for small values of x satisfying -1 < x
1
In(1 +x)~x
it follows that
Q = f Bm + g B(9.6)
tm
where f and g are constants. Dividing both sides by 2 tm yields average power during the
ramps up and down as a function of ramp rate.
Pav2g=tm- + 2FM1(9.7)
It is evident from the figures that this relationship applies fairly well.
Figure 9.19 is a plot of average AC loss power versus current ramp rate for the series
mode. Although there are only a few data points, the trapezoidal data fit the two-term loss
expression quite well. The series-loss data appear to be roughly equal in magnitude to the
single-coil-loss data.
70
US-DPC Test Report
January 1992
Figure 9.20 is a plot of AC loss versus the reciprocal of ramp time for a two-step trapezoidal
current pulse. Note that the time to the maximum current flattop is defined as having three components
in this case: the first ramp time, the first flattop time and the second ramp time. Since this type of
waveform is more difficult to deal with than a simple trapezoid, the dimensions of the current pulses
and the loss data are listed in Table 9.1.
Figure 9.21 shows hysteresis losses for pancakes 2 - 5, where hysteresis loss is defined as the yintercept value of the measured AC-loss vs. reciprocal of ramp time. Note that the losses above 25 kA
may include joule heating as explained in Section 10.3.2.2.
0.2
3000
0.
1.0
11.0
2500
I~,
0
2000
2.0
5.0
1500
1000
500
5.0
0
0
10
5
15
20
25
30
35
Flat Top Current Imax (kA)
*
*
*
+
S
0.2 loss
0.5 loss
1.0 loss
2.0 loss
5.0 loss
11.0 Loss.
y = 3.77 * xA2.07
y = 8.67 * xA1.664
y = 3.20 * xA1.939
y = 13.96,* xA.390
5.0 second ramp: y = 25.0 *XA 1.167
11.0 second ramp: y = 0.506 * xA2.45
0.2 second ramp:
0.5 second ramp:
1.0 second ramp:
2.0 second ramp:
Figure 9.17 - AC loss of pancakes 3 and 4 as a function of flattop current in the single-coil mode with ramp time as a
parameter. Note that the data point denoted by an open triangle was not included in the 5.0 s curve fit. Ramp rate is obtained
by dividing flattop current by ramp time.
71
US-DPC Test Report
January 1992
5000
4000
1-1
-
--
*
.
---
-------
3000
2000
1000
---I- .--------
0
0
20
40
60
80
100
120
Ramp Rate Im/tm (kA/s)
y = 24.5x + 0.213xA2
Figure 9.18 - Average AC loss power of pancakes 3 and 4 in the single-coil mode as a function of current ramp
rate. Included in the data are both trapezoidal and triangular current pulses. Maximum field ramp rate is
obtained by multiplying Im/tm by (5.66 T / 30 kA).
72
US-DPC Test Report
January 1992
Trapezoidal
Triangular
600
500
400
'-4
IZ-
300
--------------------------------
0
U
-------------------
------------------I---------------------
200
'-4
U
100
'411"
I-ooo-
0
0
10
20
30
40
Current Ramp Rate Im/tm (kA/s)
Trapezoidal Waveforms y = 10.lx + 0.589xA2
Figure 9.19 - Average AC loss power of pancakes 3 and 4 in the series mode as a function of current ramp rate.
Maximum field ramp rate is obtained by multiplying Imftm by (9.22 T / 30 kA).
Table 9.1 - Dimensions of current pulses and AC loss data for the 2-step trapezoidal runs plotted in Figure
9.20. 11 is defined as the first flattop current.
Run
I
I
t
t2
t3
t4
Loss
195
196
197
198
20 kA
20
20
20
25 kA
25
25
25
4.0s
1.6
0.8
0.4
3.0 s
3.0
3.0
3.0
1.0 s
0.4
0.2
0.1
5.0 s
2.0
1.0
0.5
1204 J
1264
1520
1983
73
US-DPC Test Report
January 1992
2500
2000
1-)
CA
1500
1000
-----------
500
-------- --------
------
1
0
0.0
0.5
1.0
1.5
2.0
--4
2.5
Reciprocal of Ramp Time 1/(tl+t3) (1/s)
2-Step Trapezoidal Charging Pulse
I max = 25 kA
y = 1079 +447x
0
.-
I
II
timec
Figure 9.20 - Measured AC loss for 2-step trapezoidal current pulses as a function of the reciprocal of ramp
time for maximum flattop currents of 25 kA. Note that the fall time t4, not shown on the diagram, equals the sum
of ti and t3.
74
US-DPC Test Report
January 1992
2000
Pancake 5
1500
Pancake 2
C4
-------------------------------------------------------------------------Pancake 3
Pancake 4
1000
0
o...............
..........
-----
-------------------- -----
S00
-----------------
0
0
5
10
15
20
25
30
Maximum Current Im (kA)
Figure 9.21 - Hysteresis losses of pancakes 2 - 5 in the single coil mode as a function of maximum current with
pancake designation as a parameter.
9.2
Estimate of effective filament diameter
Section 9.2 outlines the analysis used to calculate the effective filament diameter Deff of
the US-DPC wire and presents the results. In section 9.2.1, the detailed equation for the
critical current is explained as well as the procedure used to find Deff. In section 9.2.2, the
measured hysteresis loss is used to find the effective filament diameter. The Deff value
obtained from the US-DPC tests is then compared with the Deff value obtained from single
wire measurements. Finally, a sensitivity study is presented which investigates (1) the effect
that the variation of strain and temperature have on the Deff calculation and (2) the effect that
the detailed critical-current equation (compared to a simple exponential equation) has on the
Deff calculation.
9.2.1 Analytical model
The hysteresis loss of a round superconductor in a perpendicular triangular-ramp field
with an amplitude much higher than the penetration field, can be described as shown in
Equation 9.4 belowl.
75
US-DPC Test Report
January 1992
ramp [Joule/m 3 of wire]=
X Je(B) a dB
(9.4)
where X is the volume fraction of the non-copper materials in the wire, Jc(B) [A/mm 2] is the
critical current density of the non-copper region, B [T] is the external field which varies
between Bm and B0 , and a [m] is the filament radius. Equation 9.4 was derived from
Bean's critical-state model and is adopted here as first-order estimation of the hysteresis loss.
For a known loss, the effective filament diameter, Deff, is evaluated as shown in Equation
9.5.
Deff [m] = h
rp
4
B
X
f
[Joule/m3]
(9.5)
J(B) dB
As seen in Equation 9.5, the effective filament diameter depends heavily on the critical
current density function.
Two functions that fit the experimental data are available. The first one, given in Equation
7.1 and reproduced in Equation 9.6, is obtained from a model described by Summers et a12.
JC(B, T, e) = C(E) (1 - t2(T, e)) 2 (1 - b(B, T, E))2
(9.6)
B2(T,E) b0 5 (B, T, e)
where
Jc(B,T,E) is in A/mm 2 of non-copper
C(E-)= CO(1-a IFE1)1/2
CO = coefficient independent of field, temperature, and strain
t(T,e) = T/To(E)
B 2 (T,E) = Bc 2 (E)(-t 2 ){1 - 0.31 t2 (1 - 1.77 In t)}
BC20(e) = Bc20m(l-alEu)
b(B,T,e) = Bc2(T,e)
Tco(E) =Tc~m(1-a1Eu)1/w
a = 900 for E <0, 1200 for e>O
u = 1.7
w=3
The four fitting parameters are Bc20m, TcOm, CO, and E.
In addition to field, Equation 9.6 includes the effects of temperature and strain on critical
current density. Thus, a single equation can be used to describe the same conductor tested in
different background conditions.
76
US-DPC Test Report
January 1992
With Bc20m = 27.5 T, TcOm = 16 K and C0 = 8800 A T 1/2 mm-2 , Equation 9.6 fits the
critical current data best with E = -0.001 for the US-DPC measurement, and e = -0.0036 for
the single-wire measurement. 3
A second function in exponential form, where Jc,w(B) is in A/nmm 2 of non-copper is
Jc,w(B) = 5972 e-0 .2162 B , for 2.5 T < B < 15 T
(9.7)
This fits the measured data for single-wire barrel tests that depend on applied field only.
The integration in Equation 9.5 should be started from B0 = 0 T if the external field was
changed from zero to a maximum value then returned to zero. However, Equation 9.6 is not
valid as the external field approaches zero because the critical current is limited by self field.
In order to do the integration without introducing a large error, the critical current density at
near-zero external field, JcO, is estimated by linear extrapolation of the single-wire results.
Note that the JcO is by no means the real zero field critical current density. By letting Jc(B*,
T, E) = Jc0 in Equation 9.6, a B* can be found which is the new lower bound of the
integration, ie. B0 = B* in Equation 9.5.
The constants to be used in computing the effective filament diameter are JcO = 1.76 x
1010 (A/m 2 of non-Cu) and B* = 0.169 T. The total area will be the sum of a constant area
JcoB* and the integration started with a non-zero field, B*.
The field distribution along the radial direction of a double-pancake winding is highly
non-uniform. Therefore, the integration of the critical current density over the applied field is
calculated turn-by-turn. The total loss is the sum of the losses in all the turns of the double
pancake. By substituting Equation 9.6 into Equation 9.5, the effective filament diameter in
meters is expressed as shown in Equation 9.8.
Deff
emea'ed
,amp
=
4=1
tot
[Joule/m 3 wire]
[JcoB* + C Bc 2 0 .5 (1-t2
(9.8)
(2bo.5 - b'.5 +.b"]
where bm,n = Bm,n/Bc2 is the dimensionless maximum field of the nth turn in the pancake
winding, b* B*/Bc 2 is the dimensionless lower bound of the integration, Vn is the volume
of the superconducting cable in the nth turn, and the Vt is the total volume of the
superconducting cable in the double pancake.
77
US-DPC Test Report
January 1992
9.2.2
Effective filament diameters
In the US-DPC tests, the ratio of transport to critical current was less than 40% in the
highest field region. From single-wire AC loss measurements shown in an earlier article4 ,
the additional loss due to the transport current was estimated to be less than 5% and thus was
neglected in the present analysis.
The AC-loss results from double pancake B have been selected for computing the
effective filament diameters. Refer to Figure 9.21. By using Equation 9.8, the best-fit
effective filament diameter is found to be 19.8 gm when data at 30 kA are neglected. The
variation is about 30%, with a maximum of 23 pm at 25 kA and a minimum of 17.5 pm at
15 kA.
Similar calculations using Equation 9.8 have been performed for single-wire losses, and
the best-fit Deff is found to be 21.8 pm with a variation of about 10%.4 It is concluded that
the effective filament diameters from two experiments with very different conditions are in
reasonable agreement. Computed hysteresis losses (Eqn 9.4) using these best-fit diameters
are compared to US-DPC data in Figure 9.22.
The sensitivity of effective filament diameter to variations in temperature and strain has
been examined using Equation 9.8. The procedure uses single-wire temperature and strain
values (T = 4.2 K and E = -0.0036) and the US-DPC field distribution. The resulting
effective diameters are listed in Table 9.2 (cases 3 to 5) along with those calculated at
standard US-DPC and single-wire conditions (cases 1 and 2). The variations of effective
diameter are within 3% of 19.8 pm. Therefore, the hysteresis loss and the Deff calculation
using the Jc model of Equation 9.6 are not very sensitive to temperature and strain effects in
the range considered.
Table 9.2 also includes a sensitivity study made by applying the exponential Jc model to
estimate effective diameters. Both the US-DPC and the single-wire diameters are recalculated
by substituting Equation 9.7 into Equation 9.5. This yields 38 pm as the best-fit of the USDPC data and 28 ptm as the best fit of the single-wire data. The former agrees fairly well
with that estimated by JAERI (45 pm).5
Comparing cases 2 and 7, the disagreement in effective diameters is about 35%, which is
caused by the different Jc distributions in the low-field region (< 2.5 T). Due to the nonuniform field distribution along the US-DPC conductor, 10% (Im = 25kA) to 25% (Im =
15kA) of the cable volume sees an applied field lower than 1 T. The underestimation of the
low-field Jc thus becomes more apparent to the Deff evaluation for the US-DPC than for the
single wire. As seen in Table 9.2, the Deff in case 6 is 30% higher than in case 7 when same
Jc model is applied, and a factor of 2 higher than in case 1 (better Jc model). One may
conclude that the low-field critical current distribution is more important than temperature and
strain effects in calculating hysteresis loss and effective filament diameter.
78
US-DPC Test Report
January 1992
150
125
. .
...
..... ..........
100
"--
.......................
o
75
~50
25
Deff=1.8 Pm
... e 2i
M
0
0
5
10
15
Imax (kA)
20
25
30
Figure 9.22 - Comparison of the US-DPC extrapolated hysteresis losses with the calculated hysteresis losses
using the best-fit effective filament diameters. Deff= 21.8 gm is estimated from the single-wire experiment,
and Deff = 19.8 gm from the US-DPC experiment. Data at 30 kA are considered less reliable and have been
neglected in this comparison.
Table 9.2 - Comparisons of effective filament diameters.
Qh (measured)
Je model
Test
T[K]
E
1
US-DPC (4.5 K)
Jc(B, T, e)
US-DPC
4.5
-0.1
19.8
2
single wire (4.2 K)
Jc(B, T, e)
single-wire
4.2
-0.36
21.8
3
US-DPC (4.5 K)
Jc(B, T, -)
US-DPC
4.2
-0.36
20.1
4
US-DPC (4.5 K)
JC(B, T, E)
US-DPC
4.5
-0.36
20.4
5
US-DPC (4.5 K)
Jc(B, T, E)
US-DPC
4.2
-0.1
19.4
6
7
US-DPC (4.5 K)
single wire (4.2 K)
Jc,w(B)
Jc,w(B)
US-DPC
single-wire
4.2
4.2
-------
38
28
Case
79
[%]
Deff (pm)
US-DPC Test Report
January 1992
References
1. M.N. Wilson, "Superconducting Magnets", Clarendon Press, Oxford (1986).
2. L.T. Summers et al., A Model for Prediction of Nb 3 Sn critical Current as a
Function of Field, Temperature, Strain, and Radiation Damage, IEEE
Trans on Mag, MAG-27,
No. 2 (1991), p. 2041.
3. M. Takayasu, et al., Critical Currents of Nb 3 Sn wires of the US-DPC Coil,
"CEC-ICMC Conference", Huntsville, June 1991.
4. C.Y. Gung, et al., Comparisons of AC Losses of Nb3Sn Single Strands and
US-DPC Conductor, "CEC-ICMC Conference", Huntsville, June 1991.
5. JAERI, Review of US-DPC experiments, in "Proceedings US-DPC test results
workshop", ed. J.V. Minervini, MIT PFC, April 1991.
9.3
Estimate of coupling time constant
Section 9.3 outlines the analysis used to calculate the coupling time constant T eff of the
US-DPC wire and presents the results. In section 9.3.1, a description of the model used to
find the US-DPC coupling time constant is given. In section 9.3.2, the measured coupling
losses found from runs 205 through 207 are used to find the effective coupling time constant
of the US-DPC which is then compared with the T eff value obtained from single wire
measurements. Finally, as a check of the analytical model, the coupling losses of the USDPC trapezoidal-pulse runs are compared to the coupling losses predicted by the analytical
model.
9.3.1 Analytical model
Based on the anisotropic continuum modell for a twisted superconducting wire with
uniformly distributed filaments, the coupling loss in a perpendicular triangular-wave field is
2
written as
Qc,ranp [Joule/m 3 of wire] = 2
t2
dt
(9.9)
where L (m) is the wire twist pitch and p(T, B) is an effective transverse resistivity as a
function of temperature and applied field as shown below.
PO RT
p(T, B) [ohm-m] = K (gRR + P B)
(9.10)
where po.RT is the zero field, room temperature resistivity of the matrix material, B is a
scaling factor for magnetoresistivity, RRR is the residual resistivity ratio, and ic is the scaling
factor for transverse resistivity expressed as the ratio (1-?)/(1+A) with X equal to the volume
fraction of superconductor. The external field is a linear function of time, IdB(t)dtl = (BmBO)t/Tm. The final form of coupling loss in a triangular-wave field can be written as shown
in Equation 9.11.
80
US-DPC Test Report
January 1992
PO,RT + 3 B
Qcamp = 2
B - BO In RRR
2c Tm
m
9.11)
.2
POART + pBO
-RRR.
where Qcramp is in Joule/m 3 of wire.
For the US-DPC chrome-plated wire in the full-size cable, RRR equals 27.
The coupling loss of a superconducting wire in a perpendicular sinusoidal field is
expressed as shown in Equation 9.122.
Qc,sinusoiai [Joule/M 3 of wire] = 2po
Br
n
1 + (02
(9.12)
where Br(T) is the peak-to-peak value of the applied sinusoidal ripple field and co is the
angular frequency. The coupling time constant at B can be written as shown in Equation
9.13.
(9.13)
PL(T = 4.2 K, B = 0)
PL(T = 4.2 K, B)
The parameter teff is defined as the effective coupling time constant at a bias field set to
zero, which is expressed as shown in Equation 9.14.
Teff [s] M(gL)
21cpL(T = 4.2 K, B = 0)
2
(9.14)
9.3.2 Effective coupling time constant
Three of the US-DPC test results (runs 205 to 207) for double pancake B are used to
evaluate the effective coupling time constants. All were single-coil trapezoidal pulses ramped
up from 0 kA to 20 kA in 1 s, followed by a flat-top of 13 s, then ramped down to 0 kA in
1 s. In the latter two runs, a sinusoidal waveform field (6.5Hz) was superposed on the
flattop for 11 s with peak-to-peak current values of 600 A and 1400 A. The coupling loss
due to the sinusoidal ripple was obtained by subtracting the total loss of run 205 from that of
either run 206 or 207. With the known coupling loss, the effective coupling time constants
of the US-DPC double pancake B were calculated by Equations 9.12 to 9.14.
The results are listed in Table 9.3. The effective coupling time constants of the single-
wire coupling losses calculated by the same method are also shown for comparison. Except
for Case 2 (Run 207 minus Run 205), all the cases have consistent effective coupling time
constants and scaling factors for transverse resistivity. The anomaly of Case 2 is probably
due to a local recovered quench which added joule heat to the AC losses, thus increasing the
effective coupling time constant.
The experimental coupling losses of double pancake B in single-coil trapezoidal-pulse
tests (Fig. 9.23) are obtained by subtracting the extrapolated hysteresis losses from the total
losses. The calculated coupling losses using Equation 9.11 are also shown.
81
US-DPC Test Report
January 1992
Table 9.3 Comparison of effective coupling time constants.
Case
Type of
test
1
2
3
4
Peak-to-peak field Frequency Bias field Coupling loss reff
of sinusoidal wave
[Hz]
[Joule]
[ims]
US-DPC
US-DPC
Single-wire
Single-wire
Ir = 0.6 kA
Ir = 1.4 kA
Br = 0.086 T
Br = 0.086 T
6.5
6.5
7.5
7.5
20 kA
20 kA
3.37 T
4.30 T
285.22
2660.9
0.00880
0.00868
1.66
2.86
1.74
1.79
K
1.01
0.59
0.96
0.94
1500
+
t
'3
1250
..
Im= 15 kA
Im=20kA
A Im=22kA ..........------.------U Im=25kA
1000 ............... ............... : . .......
0
1
2
1/T'm [1/si
25kA
.'- .---
22kA
......... .......
3
4
Figure 9.23 - Comparisons of measured coupling losses and the calculated coupling loss from Equation 9.11 for
the case of single-trapezoidal pulse fields.
References
1. W.J. Carr, "AC Loss in a Twisted Filamentary Superconducting Wire I," J. Appl.
Phys., Vol. 45, No. 2, 1974, p. 929.
2. M.N. Wilson, "Superconducting Magnet", Clarendon Press, Oxford (1986).
3. C. Gung, et al., "Comparisons of AC Losses of Nb3Sn Single Strands and US-DPC
Conductor," CEC-ICMC Conference, Huntsville, June 1991.
82
January 1992
US-DPC Test Report
Flow choking
During AC testing of the US-DPC, the flow at the inlet of each double pancake was
momentarily restricted or "choked" due to the AC loss energy input to the SHe coolant.
Figures 9.24 and 9.25 plot the resultant flow reduction at the inlet of double pancake B for
specific trapezoidal current pulses. Figure 9.24 plots the flow reduction as a function of flat
top current at a constant ramp time of 2.0 seconds, and Figure 9.25 plots the flow reduction
as a function of ramp time at a constant flat top current of 20 kA. The trends show that the
flow reduction increases as the flattop currents increase and as the ramp times decrease.
Table 9.4 lists the current charging parameters and the steady state and minimum flows as
well as the resultant flow reduction for the AC test runs plotted in Figures 9.24 and 9.25.
Figures 9.26 through 9.35 show the flow measurements and current profiles for the AC test
runs plotted in 9.24 and 9.25.
9.4
0'
Ramp times = 2.0 seconds
4
0
3
---
------
4-
--- ---
-
0
2
1
0
0
3
6
9
12
15
18
21
24
27
Flat Top Current (kA)
Figure 9.24 - Flow reduction at the inlet of double pancake B as a function of flattop current at constant ramp
times of 2.0 seconds. Figures 9.26 through 9.29 show actual flow measurements and current profiles for the
runs plotted above.
83
January 1992
US-DPC Test Report
10
a'
Flat top currents =20 kA
-------
--------------
'U
0
0
1
4
3
2
5
6
Ramp Time (s)
Figure 9.25 - Flow reduction at the inlet of double pancake B as a function of ramp time at constant flattop
currents of 20 kA. Figures 9.27 and 9.30 through 9.35 show the actual flow measurements and current profiles
for the runs plotted above.
Table 9.4 - Data plotted in figures 9.24 and 9.25 including parameters of the current charging profile and the
steady state and minimum flows.
Run
No.
Ramp
Tie
(s)
Flat Top
Current
(kA)
Steady State
Flow
(g/s)
102
110
143
120
139
116
115
114
111
109
2.0
2.0
2.0
2.0
0.2
0.3
0.5
0.75
1.0
5.0
15
20
22
25
20
20
20
20
20
20
12.56
12.57
12.41
13.05
13.25
13.07
13.05
13.01
12.63
12.57
Minimum
Flow
(g/s)
10.2
9.4
9.4
8.5
4.0
4.8
6.2
6.2
6.5
10.8
84
Flow
Reduction
(g/s)
Flow
Reduction
(%)
2.36
3.17
3.01
4.55
9.25
8.27
6.86
6.81
6.13
1.77
19
25
24
35
70
63
53
52
49
14
US-DPC Test Report
January 1992
15
10
5
0
0
-5
0
5
10
20
15
Time (s)
220
200
180
0
0
1~
£1.)
160
,y
v
140
120
(0
5
10
Time (s)
15
20
Figure 9.26 - Flow choking in run number 102 . Flow is temporarily reduced or "choked" from its steady state
value of 12.56 g/s to a minimum of 10.2 g/s during ramps. The current pulse and flow reaction have the same
zero times. Conversion from pressure drop to mass flow is given by the following equation where p is
approximately 0.140 g/cm 3 .
rh (g/s) = 2.36 Vp (g/cm 3) x AP (mmAq)
85
US-DPC Test Report
January 1992
25
2n
-~
1
-b
I
/
/
'I
i1'
U
-
J
I
4
4
5
0
-5
5
0
10
15
2C
Time (s)
220
200
VV-yA
i"Nt
A ," ,
V-
V V
CIO
160-
on
140-
k.
120100
0
5
15
10
20
Time (s)
Figure 9.27 - Flow choking in run number 110. Flow is temporarily reduced or "choked" from its steady state
value of 12.57 g/s to a minimum of 9.4 g/s during ramps. The current pulse and flow reaction have the same
zero times. Conversion from pressure drop to mass flow is given by the following equation where p is
approximately 0.140 g/cm3 .
rh (g/s) = 2.36 Vp (g/cm 3) x AP (mnmAq)
86
US-DPC Test Report
January 1992
25
20
15
10
Q
5
0
-5
.
I
F
0
5
10
I
20
15
Time (s)
220
I
0
'2.)
200 .. j i
V
#
A
i
A
A%
VV
A I
A A
VW
160140-
'2.)
120
100 -
,
0
-
- -,
-
5
,
,
,
r
-
-
10
-
-
-
15
-
,
20
Time (s)
Figure 9.28 - Flow choking in run number 143 . Flow is temporarily reduced or "choked" from its steady state
value of 12.41 g/s to a minimum of 9.4 g/s during ramps. The current pulse and flow reaction have the same
zero times. Conversion from pressure drop to mass flow is given by the following equation where p is
approximately 0.140 g/cm3 .
i (g/s) = 2.36 Vp (g/cm 3 ) x AP (mmAq)
87
US-DPC Test Report
January 1992
2520
15
10-
Q
5
00
10
5
15
20
Time (s)
225
A
A
200175
150IE]
125 -_-
E
I
Li
75
.
0
5
. I
I
I I I I
f I .,
10
15
20
Time (s)
Figure 9.29 - Flow choking in run number 120 . Flow is temporarily reduced or "choked" from its steady state
value of 13.05 g/s to a minimum of 8.5 g/s during ramps. The current pulse and flow reaction have the same
zero times. Conversion from pressure drop to mass flow is given by the following equation where p is
approximately 0.140 g/cm3 .
rh (g/s) = 2.36 Vp (g/cm 3) x AP (mmAq)
88
January 1992
US-DPC Test Report
25
20
15
a')
10
5
0
-5
I
I
I
I
I
I
m
Time (s)
U
I
I
ID
I
/
0
220
210
200
A
~A~APJ1
"ARA
Am
-
1900
I-.
180 170
160
150
0
5
10
15
20
Time (s)
Figure 9.30 - Flow choking in run number 109 . Flow is temporarily reduced or "choked" from its steady state
value of 12.57 g/s to a minimum of 10.8 g/s during ramps. The current pulse and flow reaction have the same
zero times. Conversion from pressure drop to mass flow is given by the following equation where p is
approximately 0.140 g/cm3 .
tih (g/s) = 2.36 Vp (g/cm 3) x AP (mmAq)
89
January 1992
US-DPC Test Report
25
20
15
10
U
5
0
-5
0
5
U
5
10
Time (s)
15
20
05
2M
2000
4)
150--
1-1
100
50
10
Time (s)
Figure 9.31 - Flow choking in run number 111 . Flow is temporarily reduced or "choked" from its steady state
value of 12.63 g/s to a minimum of 6.5 g/s during ramps. The current pulse and flow reaction have the same
zero times. Conversion from pressure drop to mass flow is given by the following equation where p is
approximately 0.140 g/cm3.
ii (g/s) = 2.36 Vp (g/cm 3 ) x AP (mmAq)
90
US-DPC Test Report
January 1992
20
15
10
5
U
0
0
5
10
Time (s)
15
20
10
15
20
250
E
0
150
-~K
4)
cd~
,-r-
100
50
0
5
Time (s)
Figure 9.32 - Flow choking in run number 114 . Flow is temporarily reduced or "choked" from its steady state
value of 13.01 g/s to a minimum of 6.2 g/s during ramps. The current pulse and flow reaction have the same
zero times. Conversion from pressure drop to mass flow is given by the following equation where p is
approximately 0.140 g/cm 3 .
rih (g/s) = 2.36 %p (g/cm 3) x AP (mmAq)
91
US-DPC Test Report
January 1992
25
20
15
10
I
5
0
-5
0
5
10
15
2C
Time (s)
250
A
rVI
200
04
150
Cjn
100
50
0
5
10
15
20
Time (s)
Figure 9.33 - Flow choking in run number 115. Flow is temporarily reduced or "choked" from its steady state
value of 13.05 g/s to a minimum of 6.2 g/s during ramps. The current pulse and flow reaction have the same
zero times. Conversion from pressure drop to mass flow is given by the following equation where r is
approximately 0.140 g/cm3.
rh (g/s) = 2.36 Vp (g/cm 3 ) x AP (mmAq)
92
January 1992
US-DPC Test Report
25
20
15
10
5
0
-5
0
5
20
15
10
Time (s)
iA
250
200-
,r\l\,,
fv"W V\JV/
I
0
4)
100
I II I
00
I I I
5
15
10
20
Time (s)
Figure 9.34 - Flow choking in run number 116. Flow is temporarily reduced or "choked" from its steady state
value of 13.07 g/s to a minimum of 4.8 g/s during ramps. The current pulse and flow reaction have the same
zero times. Conversion from pressure drop to mass flow is given by the following equation where r is
approximately 0.140 g/cm3.
rh (g/s) = 2.36 Vp (glcm 3 ) x AP (mmAq)
93
US-DPC Test Report
January 1'992
25
20
15
4.
10
5
0
-- 5
0
55
10
Time (s)
15
2
(-
200-A
150]
0
'-5
4.)
100
I.-
50
0
5
15
10
20
Time (s)
Figure 9.35 - Flow choking in run number 139. Flow is temporarily reduced or "choked" from its steady state
value of 13.25 g/s to a minimum of 4.0 g/s during ramps. The current pulse and flow reaction have the same
zero times. Conversion from pressure drop to mass flow is given by the following equation where r is
approximately 0.140 g/cm3.
rh (g/s) = 2.36 Vp (g/cm 3 ) x AP (mmAq)
94
US-DPC Test Report
10.
January 1992
Ramp-rate limitation
During AC testing, a ramp-rate limitation was discovered. In order to show the
behavior of the limitation, the following chapter presents comparisons of the current versus
ramp time data of various groupings of runs. First, section 10.1 presents three
classifications by which each run is characterized to provide sensible comparisons of the
data. Next, section 10.2 presents for each quenched run, the initiation point and time of
quench, quench and flattop current, ramp time, detection system delay time, and run
classifications. Also, a typical crossover-turn voltage rise during quench is shown.
Section 10.3 compares various groupings of test runs to reveal the ramp-rate limitation
behavior. Finally, section 10.4 presents an argument for using the limiting current as a
means of predicting the ramp-rate limitation
10.1 Characterization of an AC test run
The US-DPC data contain 205 AC test runs (runs 74 - 278) each of which are
characterized by the following classifications.
10.1.1 Quenched or non-quenched
There are 51 quenched runs and 154 non-quenched runs. The 51 quenches can be
further classified according to their initiation point.
Crossover Turn - Connects the upper and lower pancake at the inner diameter and
experiences the highest field of any turn in the double pancake.
Interpancake Lap Joint -- Connects the double pancakes at the outer diameter and
experiences low fields.
Middle Turns -- Wound outwardly from the crossover turn and terminate at either
the interpancake lap joints or the current leads. Voltage taps were not attached on
individual turns through the middle of the double pancakes, so the exact point of
normal-zone initiation could not be pinpointed in this region.
10.1.2 Test mode (single-coil or series-coil)
There are 180 single-coil and 25 series-coil test runs. The single-coil test runs were
performed by charging only the US-DPC with no contribution from the background field
coils, Ul and U2. The series-coil test runs were performed by charging the US-DPC in an
electrical series connection with the background field coils.
10.1.3
Charging waveform
Six different charging waveforms and combinations thereof were employed: triangular,
trapezoidal, round-edge trapezoidal, rippled trapezoidal, and two-step trapezoidal. For a
schematic of each waveform refer to Figure 9.2.
95
US-DPC Test Report
January 1992
10.2 The quenched runs
The lap joint and middle turn quenches could not be included in most of the analysis
due to the placement of voltage taps for digital records. Nevertheless, the following
questions were answered, where possible, for each quench:
1.
2.
3.
4.
5.
6.
7.
Where did the quench initiate?
What was the average time of initiation of trapezoidal-pulse quenches?
Of all the quenches, what percentage initiated before onset of the flattop current?
What was the current at the time of initiation for before-flattop quenches?
Were there any unusual data that reveal the cause of the ramp-rate limitation?
What was the delay time of the quench detection system?
What was the rise in voltage across the crossover turn normal zone?
Table 10.1 and Figures 10.1 and 10.2 list and plot the quench data. Note that all of the
middle-turn quenches occurring during the series-coil tests showed a voltage rise in the
crossover turn, and it is believed that the initiation point was close to the crossover turn for
these runs. The sole middle-turn quench occurring during the single-coil tests (run 237)
did not show a voltage rise in the crossover turn.
From the data in Table 10.1 and Figures 10.1 and 10.2, the answers to the above
questions are as follows:
1. Where did the quench initiate?
Of the 51 quenches, 34 (66.7%) initiated in the crossover turn of double
pancake C. Note that the highest field in the US-DPC occurs in the crossover turn
of double pancake B, which would therefore be the expected point of normal zone
initiation. The only difference in the geometry of double pancake C is the absence
of a heater wire through the cable center, resulting in a larger void fraction. For a
further breakdown of the quenched runs according to their initiation point, see
Table 10.2
Another interesting note is that of the seven quenches occurring during the
series-coil tests, six (86%) initiated in the middle-turns, and just one initiated in the
crossover turns.
Table 10.2 - Breakdown of the 51 quenches according to their initiation point.
initiation point
crossover turn of double pancake C
interpancake lap joints
middle turns of double pancake C
crossover turns of double pancakes B and C
middle turns of double pancake B
middle turns of double pancakes A, B, and C
no data due to a mistrigger of the detection system
96
number
overall percentage
34
7
5
2
1
1
1
66.7
13.7
9.8
3.9
2.0
2.0
2.0
January 1992
US-DPC Test Report
0
0
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001
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*
US-DPC Test Report
January 1992
2. What was the average time of initiation of trapezoidal-pulse quenches?
The quench initiation time tq is listed in column three of Table 10.1. Of the 22
trapezoidal-pulse quenches for which both the quench initiation time and ramp time
could be determined, the average initiation time exceeded the ramp time tm by
3.1%. The standard deviation of ratios of (tq / tm) is 6.8%.
(t I tm)average = 1.031
3. Of all the quenches, what percentage initiated before onset of the flattop current?
Of the 36 quenches for which both the quench initiation time and ramp time
could be determined, 20 (55.6%) initiated before and 16 (44.4%) initiated after the
onset of the flattop current.
4. What was the current at the time of initiation for before-flattop quenches?
Of the eighteen before-flattop quenches for which both the quench and flattop
current could be determined, the average quench current was 96.0% of the flattop
current.
5. Were there any unusual data that reveal the cause of the ramp-rate limitation?
No conclusions could be drawn as to the cause of the ramp-rate limitation.
6. What was the delay time of the quench detection system?
Of the 36 quenches for which the delay time could be determined, the average
delay was 0.46 seconds with a maximum of 0.69 seconds and minimum of 0.25
seconds. The delay time is defined as the dump time tdump (column 7 in Table
10.1) minus tq and is plotted in Figure 10.1 as a function of run number. Figure
10.3 shows dump and quench times as measured from a typical crossover turn
voltage trace.
7. What was the rise in voltage across the crossover turn normal zone?
Of the 36 quenches for which the voltage rise AV could be measured, the
average rise was 1.77 volts with a maximum of 2.89 volts and a minimum of 0.33
volts. AV is defined as the total increase in voltage of the crossover turn before the
coil dump and is plotted in Figure 10.2 as a function of run number. Figure 10.3
shows AV as it was measured from a typical crossover turn voltage trace. Note that
the voltage trace has a spike at the time of dump. This spike was present in all the
quench voltages and was not included in the measurement of AV.
98
US-DPC Test Report
0.8
0.6
January 1992
Delay Time of Quench Detection System
I1
i
0.4
0.2
Run Number
0.0
Run Number
Figure 10.1 - Delay time of the JAERI quench detection system as a function of run number. Delay time is
defined as dump time tdump minus quench initiation time tq (see Figure 10.3). For a description of the power
supply and detection system at JAERI see reference 1.
Voltage Rise in Crossover Turn of Double Pancake C
2-
0Run Number
Figure 10.2 - Voltage rise AV in the crossover turn of double pancake C as a function of run number. AV is
defined as the total increase in voltage of the crossover turn before the coil dump (see Figure 10.3).
99
US-DPC Test Report
January 1992
JT60 Power Supply Current
*I.
Iq---0 :
25:
Y
--------
----------
-----
J
- Im
-- #4
15
10:
5
8.0
A
0
9.0
8 .5
I
9.5
10.0
I ni
i
2-
11
0
-- 1-
C4
8.0
8.5
? 9.0
tq
t. 9.5
tdump
10.0
Time t (s)
Figure 10.3 - The voltage trace in the crossover turn of double pancake C during the quench of run 186 shows
a typical measurement of quench time and current tq and 'q, dump time tdump, voltage rise AV, and flattop
current 'm. The current ramp for this run begins at t = 1.58 s, and the current must be divided by 0.951 to
compensate for instrumentation error.
100
US-DPC Test Report
January 1992
10.3 Behavior
In order to show the behavior of the ramp-rate limitation, a baseline limit is used to
compare the current versus ramp-time data of various groupings of test runs. Section
10.3.1 establishes the baseline limit, which is then compared with the ramp data from
subgroupings of single-coil and series-coil test runs in sections 10.3.2 and 10.3.3,
respectively.
10.3.1 Baseline limit
The baseline limit is a linear curve fit of the current versus ramp-time data for crossover
turn quenches produced in the single-coil test mode by single trapezoidal waveforms as
shown in Figure 10.4 and described by Equation 10.1.
I = 23.2 + 0.845 t
(10.1)
where: t in seconds is either time to quench tq or ramp time tm
I in kA is either quench current Iq or flattop current Im
Note that when the normal zone voltage began before onset of the flattop current, the
quench current and time to quench data were plotted, and when the normal zone voltage
began after onset of the flattop current, the flattop current and ramp time were plotted.
The standard deviation of the baseline limit is 0.878 kA, which corresponds to 3.7% of
the predicted current at one second ramp times and 2.8% of the predicted current at 10
second ramp times.
Figure 10.5 compares the non-quenched, single-coil, trapezoidal-pulse runs with the
baseline limit to highlight the effect of the ramp-rate limitation.
35TT
30
-~25
Baseline ramp-rate limit
I= 23.2+ 0.845t
20
o
15
10
Q 5
0
-----------
0
----
----
2
4
Time
6
8
tq or tm
10
12
(s)
Figure 10.4 - Linear curve fit of single-coil, trapezoidal-pulse, current-versus-time quench data used to
define a baseline ramp-rate limit. The limit is compared with various groupings of AC test runs.
101
US-DPC Test Report
January 1992
35
Baseline ramp-rate limit
30
-------------*
25
20 -
1
15
10
r
0 Quenhed trapezoidal runs
a Non-quenched trapezoidal runs
5
---.--
0
0
2
4
Time
8
6
10
12
tq or tm (s)
Figure 10.5 - Comparison of the baseline ramp-rate limit to non-quenched trapezoidal-pulse data. Attempts
to charge beyond the limit resulted in quenches of the US-DPC.
Single-coil tests
10.3.2
In order to form sensible comparisons with the baseline ramp-rate limit, the single-coil
test runs were separated into subgroups of runs quenched in the interpancake lap joints,
runs pulsed by triangular waveforms, runs pulsed by round-edge trapezoidal waveforms,
runs pulsed by rippled trapezoidal waveforms, and runs pulsed by two-step trapezoidal
waveforms in sections 10.3.2.1 - 10.3.2.5, respectively.
10.3.2.1 Runs quenched in the interpancake lap joints
Of the seven interpancake lap joint quenches, all occurred at nominal ramp times of one
second or less, and five of the seven occurred at currents below the baseline limit as shown
in Figure 10.6. The slope and intercept of a linear fit to the data argue for a physical
mechanism that differs from the baseline quench mechanism. Note that the lap joints were
cooled with liquid rather than supercritical helium. It is hypothesized that at high ramp
rates, eddy current heating of the joints boiled away all or most liquid in the joint
manifolds, resulting in poor heat transfer and consequently quenches at the joints.
102
January 1992
US-DPC Test Report
35
Curve fit to joint quenches
30
25
20
X
Baseline ramp-rate limit
15
0
Q
10
. Quenched trapezoidal runs
x Joint quenches
5
0
0
2
4
Time
6
8
tq or tn
10
12
(s)
Figure 10.6- The interpancake lap joint quenches compared with the baseline ramp-rate limit. All lap joint
quenches occurred at nominal ramp times of one second or less and five of the seven occurred at currents below
the baseline limit.
10.3.2.2 Triangular-pulse runs
Of the 15 triangular-pulse runs, two showed normal-zone voltage rises as shown in
Figure 10.7. The quenched runs exceeded the baseline ramp-rate limit by as much as 14%,
and the non-quenched runs exceeded the baseline limit by as much as 27%.
Because the triangular pulses have no flattop currents, a quench-indicating voltage rise
may have been undetectable due to the immediate, rapidly decreasing down-ramp current.
As a check, Figure 10.8 plots the measured AC loss data of the non-quenched runs (all of
which occurred at 0.5 second ramp times) as a function of the maximum current to see if
the behavior of the measured losses could be accounted for by AC loss theory alone or if
undetected normal zones created unpredictable increases in the measured losses due to joule
heating. In this plot it is revealed that at currents between 20 and 25 kA, the measured AC
losses begin to increase exponentially, deviating from the behavior predicted by the
calculated losses and indicating joule heating has occurred. (Note that the apparently higher
losses in pancake 5 are probably due to inaccurate mass flow measurements at the inlet of
double pancake C.) A conclusion can be made that normal zones were initiated in the 0.5second-ramp-time runs, but the quench detection system was not triggered due to the
absence of a flattop current.
103
US-DPC Test Report
January 1992
Baseline ramp-rate limit
30
20
. Quenched trapezoidal runs
5-
0
LDNon-quenched triangular runs
x Quenched triangular runs
o
10
4.)
Q
0
0
2
4
6
Time
8
tq or tm
10
12
(s)
Figure 10.7 - The triangular-pulse runs compared to the baseline ramp-rate limit. The currents at 0.5
second ramp times appear to exceed the limit without quenches.
'
3000
9
0~~
PANCAKE #5
Tm = 0.5 s
-
00
PANCAKE #2
9
cd~
2000
-
CALCULATED AC LOSS OF
PANCAKE #2 OR #5
CALCULATED AC LOSS OF
PANCAKE #3 OR #4
PANCAKE #3
PANCAKE #4
0
0
10
20
30
Current (kA)
Figure 10.8 - The AC losses of individual pancakes from the non-quenched, triangular-pulse runs. At
currents between 20 and 25 kA, the measured AC losses begin to increase exponentially, deviating from the
behavior predicted by the calculated losses and indicating joule heating has occurred. Note that the apparently
higher losses in pancake 5 are probably due to inaccurate mass flow measurements.
104
January 1992
US-DPC Test Report
10.3.2.3 Round-edge trapezoidal-pulse runs
One of the eight round-edge trapezoidal-pulse runs quenched, as shown in Figure 10.9.
The quenched run (no. 181) exceeded the baseline ramp-rate limit by 8.1%, and the nonquenched runs exceeded the baseline limit by as much as 12.1% (no. 180).
The significance of the round-edge trapezoids is that the ramp current I(t), given by
Equation 10.2, creates a steadily decreasing ramp rate that eliminates the sharp transition to
flattop (thought at the time of testing to initiate quench).
I(t) = (Im/ tm) t + 0.283 Im sin(n t /tm)
(10.2)
Two examples of the difference between round-edge and standard trapezoids are shown in
Figure 10.10, which plots the current waveforms of runs 180 and 181 with the equivalent
ramps of standard trapezoidal waveforms.
For the reader's reference, Figure 10.11 plots the ramp-rate variation of runs 180 and
181 during charging. It is evident that the ramp rates near the transition to flattop were
significantly smaller than initial ramp rates.
Baseline ramp-rate limit
30
x
XC
-
20
x
0
--
---------
Quenched round-edge trapezoidal runs
a Non-quenched round-edge trapezoidal runs
I
10
Q
0
0
3
6
Time
9
tq or tm (s)
12
15
Figure 10.9 - The round-edge trapezoidal-pulse runs exceeded the baseline ramp-rate limit by 8.1% during
the quenched run and by as much as 12.1% during the non-quenched runs
105
US-DPC Test Report
January 1992
30
Baselie ramp-rat limit
25
20
15
4)
Q
Equivalent ramp of standard trapezoid
10
5
Run 180 ramp current (no quench)
+ Run 181 ramp current (quench at 1.78 s)
0
0
1
2
3
4
5
Time (s)
Figure 10.10 - The ramp currents of runs 180 and 181 illustrate the difference between the round-edge
trapezoidal waveforms and the equivalent standard trapezoidal waveform.
25
20
+ Run 181 ramp rate
Run 180 ramp rate
15
U
10
0
0
1
2
Time (s)
3
Figure 10.11 - Ramp-rate as a function of time for runs 181 and 180.
106
4
5
US-DPC Test Report
January 1992
10.3.2.4 Rippled trapezoidal- pulse runs
Of the eight trapezoidal-pulse runs with AC current ripple, the baseline limit was
exceeded by as much as 3.1% during the three quenched runs and by as much as 6.1%
during the five non-quenched runs as shown in Figure 10.12. Contrary to expectations,
these runs showed that the addition of a coupling-loss-inducing ripple to the charging
waveform seems to slightly enhance the coil performance.
35
Baseline
30
-rate limit
~25
20
x
0
Quenched rippled trapezoidal runs
x Non-quenched rippled trapezoidal runs
15
A>
10
5
0
0
2
4
Time
6
8
tq or tm
10
12
(s)
Figure 10.12 - Comparison of the baseline ramp-rate limit to data from trapezoidal waveforms that contained
AC current ripple.
10.3.2.5 Two-step trapezoidal-pulse runs
Of the nineteen two-step trapezoidal-pulse runs, the baseline limit was exceeded by as
much as 14.2% during the seven quenched runs and by as much as 16.6% during the
twelve non-quenched runs as shown in Figure 10.13. It appeared that an intermediate
flattop in the ramp allowed the baseline limit to be exceeded.
The intermediate flattops were of either one or three second nominal duration. The
three second duration allowed cold inlet-helium to completely flow through the crossover
turn and thereby reestablished the base temperature (nominally 4.5K) before initiating the
second ramp. However, the duration of the flattop seemed to have no significant effect on
the ramp stability as shown in Table 10.3. Four of the seven quenches had a three second
intermediate flattop, indicating that reestablishment of the base temperature was insufficient
to stabilize the coil.
107
January 1992
US-DPC Test Report
35
Baseline ramp-rate limit
30
~25
~20
15
t3
Non-quenched two-step trapezoidal runs
x Quenched two-step trapezoidal runs
10
Q
,,,r, ,,- ,,,, ,,,, ,,,-, ,-,, , ,, ,
5
0
0
2
1
3
4
Time
tq or tm
6
5
7
8
9
(s)
Figure 10.13- Comparison of the baseline ramp-rate limit to data from two-step trapezoidal-pulse runs.
Table 10.3 - Ramp data for the two-step trapezoidal-pulse runs.
run
quenched?
no.
152
153
154
217
218
220
223
150
151
155
195
196
197
198
219
221
222
224
225
1st ramp
time
yes
yes
yes
yes
yes
yes
yes
no
no
no
no
no
no
no
no
no
no
no
no
intermediate
intermediate
flattop current flattop time
(s)
(kA)
(s)
0.75
0.76
0.77
3.32
3.69
1.01
1
1
1
2
4
1.6
0.8
0.4
1
1
1
1
1
22
22
22
20
22
22
22
22
22
22
20
20
20
20
22
22
22
22
22
0.98
2.97
2.96
3
3.01
0.98
1.01
1
1
3
3
3
3
3
1
1
1
1
1
108
2nd ramp
final
time
current
total ramp
time
(s)
(kA)
(s)
0.32
0.31
0.77
1.71
1.34
1.01
1.57
1
1
0.75
1
0.4
0.2
0.1
1
1.6
1.6
1.6
1.6
30
30
30
30
30
30
29
27
30
30
25
25
25
25
27
30
30
29
29
2.05
4.04
4.5
8.03
8.04
3
3.58
3
3
5.75
8
5
4
3.5
3
3.6
3.6
3.6
3.6
US-DPC Test Report
January 1992
10.3.3
Series-coil tests
The series-coil tests were limited to eighteen non-quenched and seven quenched runs
(numbers 254 to 278). Of the seven quenches, six initiated in the middle turns and one
initiated in the crossover turn of double pancake C. However, the middle turn quenches
also showed normal zone voltages in the crossover turns, indicating that quench initiation
occurred close to the crossover turn. Further analysis is required to quantify exact initiation
points and times.
Because the middle-turn quench times could not be determined accurately, only the
non-quenched, trapezoidal-pulse runs are plotted in comparison with the baseline ramp-rate
limit as shown in Figure 10.14, which plots flattop current vs. ramp time, and 10.15,
which plots flattop magnetic field vs. ramp time. Figure 10.14 shows that the nonquenched flattop currents fell below the currents predicted by the single-coil baseline limit.
However, Figure 10.15 shows that the flattop magnetic fields fell approximately 50%
above the fields predicted by the single-coil baseline limit. This implies that the ramp-rate
limitation of by the US-DPC was more dependent on current than magnetic field.
35
Baseline ramp-rate limit
30
25
'20
13
13
4
4
4
0
I
C)
1U
Non-quenched series-coil, trapezoidal runs
5
0
0
1
2
4
3
Time
5
6
tm (s)
Figure 10.14 - The flattop currents of the non-quenched, series-coil, trapezoidal-pulse runs do not exceed
the single-coil, baseline ramp-rate limit.
109
US-DPC Test Report
January 1992
8
Baseline ramp-rate limit
B
0'
4.38 + 0.160t
00
ad
6
4.)
iz
4
4.)
2
o Non-quenched series-coil, trapezoidal runs
0
0
1
-
2
3
Time
4
tm
5
6
(s)
Figure 10.15 - Flattop magnetic fields of the non-quenched, series-coil, trapezoidal-pulse runs exceed the
single-coil, baseline ramp-rate limit by as much as 50%.
10.4 Argument for limiting current
A threshold or "limiting" current may exist below which the US-DPC was
unconditionally stable at any ramp rate in the single-coil mode. This current would be the
intercept of the baseline limit, which equals approximately 23 kA. In support of the
argument, Figure 10.16 compares the baseline limit with data from the two fastest-ramp,
single-coil, trapezoidal-pulse runs (numbers 147, tm = 300 ms and 148, tm = 200 ms).
Both runs were stable in the crossover and middle turns at these extraordinary ramp rates
(di/dt ~ 100 kA/s; dB/dt = 20 T/s), although both quenched in the interpancake lap joints.
The term limiting current is interpreted here as the copper-stabilizer current at which
Joule heating power equals helium cooling power. For transient disturbances during a
ramp that cause a loss of superconductivity at currents below the limiting current, cooling
would exceed heating and recovery should be theoretically possible. Limiting current takes
the form 2 :
I
=
Acupwh(Tc - Tb)
where Aru is the stabilizer copper area, p, is the wetted perimeter, h is the heat transfer
coefficient, p is stabilizer resistivity, T, is critical temperature and Tb is bath temperature.
110
US-DPC Test Report
January 1992
35
30
Baseline ramp-rate limit
25
20
147
148
15
U
10
5
0
-
0
, --,-,
,-, Y--,-, -,
-
1
2
3
4
Time Tm
5
6
(s)
Figure 10.16 - The single-coil mode baseline ramp-rate limit has a 23 kA intercept. Runs 147 and 148
(ramp times of 300 and 200 ms respectively) were without quench in the crossover or middle turns and
support the conjecture that below 23 kA the coil would be stable at any ramp rate.
References
1. T.Isono, et. al., "Power supply system for the Demo Poloidal Coils," MT-11, Vol.2,
1989, pp. 835 - 840.
2. L. Bottura et al, "Design criteria for stability in cable-in-conduit conductors,"
Cryogenics, Vol. 31, July 1991, pp. 510 - 515.
111
US-DPC Test Report
11.
January 1992
Lap joint resistance
The US-DPC consists of three double-pancakes joined together in series by two
interpancake lap joints as described in section 5.3 and illustrated in Figure 5.4. The most
important parameter of the lap joints is their electrical resistance, and in this chapter, the
electrical resistance measurements are presented. Section 11.1 presents the geometry and
fabrication steps of the lap joints, and section 11.2 presents the resistance measurements.
11.1 Joint description
The ribbon lap joints of the US-DPC have the geometry shown in Figure 11.1. The
ribbons were made by undoing the last-stage cable transposition so that the 45-strand
subcables could be placed side by side. During heat treatment of the superconductor, the
copper stabilizers of the wires sintered to the 0.7-mm-wall CDA 102 copper tube into
which they were placed. In addition to the copper-to-copper sinter bonds, the cable space
of the ribbons was filled with 50/50 (Sn/Pb) soft solder after heat treatment. The mating
surfaces of the conductor ribbons were tinned and soldered using 0.10 mm thick Sn/Pb/Cd
(51/31/18) sheets between the ribbon surfaces. The connected or overlap length of the two
lap joints is given in Table 11.1.
0.7 mm
1
2
3
4
5
1
2
3
4
5
1
I
mm
42mm
Figure 11.1 - Geometry of the US-DPC ribbon lap joints. The orientation of the ribbons in the coil was with the
long side (42-mm) vertical. The ribbons were clamped between copper blocks not shown in the figure.
Table 11.1 - Length of ribbon lap joints in the US-DPC.
Joint
Length
A/B
B/C
941.1 ±25 mm
871.2 ± 25 mm
11.2 Measured resistances
The resistance of the ribbon lap joints was measured during single-coil DC runs 23 - 25
and is presented as a function of current in Figures 11.2 and 11.3. The range of resistance
was from 0.2 to 0.6 ni. Note that at 30 kA the field at the lap joints, which was
approximately parallel to the 42 mm dimension, was 2.2 T in the single-coil mode.
112
January 1992
US-DPC Test Report
y = 1.9353 + 6.1944e-2x
RA2 = 0.810
C
0a
- --------- --------------------- --------- ---------- ---------- -------
-
-------------------
n'.1
0
0.
10
20
Coll Current
30
40
(kA)
Figure 11.2 - Resistance of lap joint A/B as a function of coil current. Data were taken from single-coil runs
24 and 25.
y
C:
7
0
6
=
3.4457 + 5.9452e-2x
5
RA2
=
0.144
III------
-U
4
0c
co
3
2
1
n
0
10
20
Coil Current
30
40
(kA)
Figure 11.3 - Resistance of lap joint B/C as a function of coil current. Data were taken from single-coil runs
23 through 25.
113
US-DPC Test Report
12.
January 1992
Mechanical performance of the US-DPC
Mechanical behavior of the US-DPC was observed by displacement and strain
measurements. Note that displacement in the axial direction could not be measured directly
due to limited space and was inferred from strain measurements on bolts of the support
structure.
12.1 Displacement measurements
Displacements in the radial direction at two points of the innermost turn of pancake 6
were measured by two extensometers, USDS01 and USDS02, as shown in Figure 12.1.
These extensometers were mounted to poles fixed on the base plate of the coils. Each
extensometer had a 10 mm movable rod of which the amount of movement was equal to the
displacement. The extensometers were located so that the top of the rod touched the coil
surface and the movable range was 5 mm. Since the coil base plate could not move, the
measured displacements were absolute.
12.2 Sensors and locations
Strains of the coil support bolts that compress the whole coil stack were measured by
strain gauges directly mounted on the centers of the bolt lengths. Sensor locations are
shown in Figure 12.2. The mechanical behavior of the stack was monitored by strain
measurements of the support bolts during DC tests.
12.3 Displacement measurements during DC tests
In the figures of this section, positive values of displacement show that the coil
contracts, and negative values show that the coil expands. The average value (which
eliminates coil movement resulting from stack misalignment) should be used when
mechanical behavior of the coil is discussed.
114
January 1992
January 1992
US-DPC Test Report
US-DPC Test Report
180*
A
135
D S07f
225'
DS03,04
UDSI
Zn
--
USDS02
DS12
DSIO
goo DS06
2700
-DS09
**USDSOI<
-Ul
Sol
DS08
\
Ds05
450J
315*
A
0*
UIDS03.
UI1SOI
DPC-Ul
DSO
DSOS
USDSOI
USDSO2
US-OP
0509
DS11
DPC-U2
DS03
D07
DSO4
)S02
A - A
Figure 121 - The location of the extensometers, USDS01 and USDS02 are shown on the top view and side view
of the coil stack (Ul + US-DPC + U2). The radial displacements are measured at the innermost turn of pancake
6 of the US-DPC.
115
January 1992
US-DPC Test Report
180
18
19
17212
21
7
56
16
4
STSS No.
N.,24
S
1
00
Li
I I ILL
U'r
C
I
Ix
1-01
H F
F
2Lj
H-44
.41--
Figure 12.2 - The location of the strain gauges are shown on the top view and side view of the coil stack (UI +
US-DPC +U2). The strain gauges are mounted on the bolts which precompress the coil stack before cool in down.
116
US-DPC Test Report
January 1992
12.3.1 Single-coil tests
12.3.1.1 XT recorder charts
Figures 12.3 through 12.8 show XT charts of current and displacements (USDS01 and
USDS02) of run numbers 18, 20 and 23. The discontinuous points of displacement match
with balance voltage spikes and are shown by arrows in these figures. It seems that the
whole coil moved as the magnetic force was increased because a positive displacement was
measured in USDSO 1. The XT recorder charts given here are summarized in Table 12.1.
Table 12.1 - Summary of XT recorder charts.
Figure
number
Chart
number
Shot
From
To
Number of Spikes
DSO1
DS02
12.3
12.4
12.5
12.6
XT
XT
XT
XT
#18
#20
#20
#20
12.7
12.8
XT
XT
#23
#23
18kA
18 kA
24 kA
27kA
27kA
24 kA
27 kA
21kA
21 kA
27 kA
27kA
30kA
27 kA
30 kA
2
0
0
1
1
0
0
2
0
0
0
1
0
0
Two discontinuous points with balance voltage spikes in both USDS01 and USDSO2
are observed in the first charge (run number 18) between 18 kA and 21 kA as shown in
Figure 12.3. However, in the second charge (run number 20) displacements smoothly
increase with increase of current between 18 kA and 21 kA as shown in Figure 12.4. In
run number 20, the displacement record is serrated and a few discontinuous points with
balance voltage spikes are observed over 24 kA which is the virgin region for the coil as
shown in Figures 12.5 and 12.6. The smooth displacement records over 24 kA in the
second charge (run number 23) are obtained as shown in Figures 12.7 and 12.8.
117
US-DPC Test Report
January 1992
January 1992
US-DPC Test Report
P
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US-DPC Test Report
January 1992
US-DPC Test Report
January 1992
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January 1992
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US-DPC Test Report
US-DPC Test Report
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January 1992
US-DPC Test Report
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January 1992
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US-DPC Test Report
January 1992
US-DPC Test Report
January 1992
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cn
LO~f
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123
US-DPC Test Report
January 1992
12.3.1.2 XY recorder charts
XY charts of run numbers 24 and 32 in which currents are charged up to 30 kA are
shown in Figures 12.9 and 12.10, respectively. A small hysteresis effect is observed in
both USDS01 and USDSO2. Figure 12.11 shows a comparison between run numbers 24
and 32. In USDS01, the displacement of run number 32 is about 0.2 mm larger than that
of run number 24. In USDSO2, the displacements are about the same.
12.3.1.3 Relation between displacement and current squared
As mentioned above, the average value in which the coil movement is eliminated should
be used when the mechanical behavior of the coil is discussed. The displacements which
are plotted as a function of current squared are shown in Figures 12.12 and 12.13. A
residual displacement after discharge is observed in run number 18 (the first charge) as
shown in Figure 12.12. The data of run numbers 20, 23, 24, 25 are plotted in Figure
12.13. The residual displacements disappear and good reproducibility is obtained after run
number 18. Usually, the average displacements are in proportion to current squared. But
in the case of US-DPC, the average displacements of USDS01 and USDSO2 are not in
proportion to current squared in wide range from 0 kA 2 to 900 kA 2 . Up to 300 kA 2 , the
displacements are in proportion to current squared, but over 300 kA 2 , the displacements
saturate. The maximum average value at 30 kA is about 0.45 mm (run numbers 23 through
25). In addition, it has a scatter between 0.35 mm (run numbers 33 through 38) and 0.53
mm (run numbers 66 through 69).
12.3.2 Series-coil tests (U1+U2+US)
12.3.2.1 XY recorder charts
The XY chart of run number 58 (see Fig. 8.1) is shown in Figure 12.14. A decrease
of displacement during the long holds is observed in this figure. The configuration of
measured curves is similar to that of the single-coil tests.
12.3.2.2 Relation between displacement and current squared
The displacement plotted as a function of current squared is shown in Figure 12.15.
The configuration of the measured curves is similar to that of the single-coil tests. In
addition, measured values are slightly larger than those of the single-coil tests. Up to
200 kA2 , displacements are proportional to current squared, but over 200 kA 2 ,
displacements saturate. The maximum average value at 30 kA is about 0.6 mm.
124
January 1992
US-DPC Test Report
0
1.0
USDSO2
#24
-- 0.5
0.8
E
8
.0
'- 0.6LU
LUI
C-)
- -1.5
4
0.2
0
-- 2.0
-
0
5
15
10
CURRENT
/
20
(kA)
25
-2.5
30
Figure 12.9 - The XY chart recording of the current and extensometers, USDS01 and USDs02, for run number
24 reveal a small hysteresis effect in the displacement as the US-DPC is charged from 0 to 30 to 0 kA.
125
January 1992
US-DPC Test Report
1.0
0
USDSO 2
332
0.8
-0.5
0.6
- 1.0
0.4 -
- 1.5
E
E
LJ
CL
0.2 k
0
0
-2.0
USDS 01-
5
15
10
CURRENT
20
(kA)
25
-2.5
30
Figure 12.10 - The XY chart recording of the current and extensometers, USDSO I and UD5S02, for run number
32 reveal a small hysteresis effect in the displacement as the US-DPC is charged from 0 to 30 to 0 kA.
126
US-DPC Test Report
1992
January
0
1.0
USDS0 2
0.8
2#
24
-0.5
E
#
0.6 [-
2
-1.0
LU
LU
-J
0.4
#3 2
Cl)
0.2 k
0
+
0
USDS01
5
#
10
15
CURRENT
20
(kA)
+-2.0
24
25
__j - 2.5
30
Figure 12.11 - The XY chart recording of the current and extensometers, USDS0 I and USD502, compare the
differences in the hysteresis effect of run numbers 24 and 32.
127
1. 5
January
US-DPC Test Report
1992
-J
0
0
21
U/)
<
0;
c
w
40
01
Ci
0<
O
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c
4.
E,
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_
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_
_
w
[1c iN
_
_
_
U
]V1(
128
_
_
January 1992
US-DPC Test Report
w
-J
0)
z
Lri
0
U)
U)
D
N
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co)
C,
CO
cl)
C)
047
to
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a
CL.
LUJ
0y
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U-
C
IUi
LO
U)
-
CD
(LuUJ) iN3A33dSI
129
04
IN
m
January 1992
January 1992
US-DPC Test Report
US-DPC Test Report
0
2.0
USDSO2
#458
--
1.5
1.0
E
E
-- 2.0
1.0U
C-)
-- 3.0
S0.5 USDSO1
o
-- 4.0
0
-0.5 1
0
5.0
5
15
10
CURRENT
20
25
30
(kA)
Figure 12.14 - The plots of radial displacement versus current for run number 58 show a reaction similar to
the single-coil test measurements.
130
January 1992
US-DPC Test Report
D
+
D
+
an
U)
D
Cl
C
U->
~10
U-
C)
In
0
(N
=3
*
00
a,)
CO
LUj
0
a
C7-
U)
X
4
2:
C
LiU
_D
C
01
0
0
40
6.
l
(W~U)
L1~)
n
C5
6
iNN0V-DVdSIG
131
1~)
US-DPC Test Report
January 1992
12.4. Displacement measurements during AC tests
12.4.1 Single-coil
tests
12.4.1.1 XT recorder charts
Figures 12.16 through 12.19 show XT charts of current and displacements (USDS01
and USDSO2) of run numbers 124, 175, 180, and 243. The figures show the
displacement curves corresponding to the various current patterns.
12.4.1.2 XY recorder charts
The XY charts of run numbers 155 and 243, where the current was charged to 30 kA,
are shown in Figures 12.20 and 12.21, respectively. A small hysteresis effect is observed
in both USDS01 and USDSO2 similar to the DC charge tests. Figure 12.22 shows a
comparison between run numbers 155 and 243. In USDS01, the displacement of run
number 155 is about 0.2 mm larger than that of run number 243, and in USDSO2, the
displacement of run number 155 is about 0.05 mm larger than that of run number 243.
12.4.1.3 Relation between displacement and current squared
The displacements plotted as a function of current squared are shown in Figure 12.23.
The data obtained from the XT charts between run numbers 84 and 251 are used in this
figure. The curves obtained from the AC tests agree well with those from the DC tests, if a
measurement error is taken into account (compare Figures 12.13 and 12.23). The
maximum average value at 30 kA was about 0.5 mm.
12.4.2 Series-coil
tests (UL+U2+US)
12.4.2.1 XY recorder charts
The XY chart of run number 270 is shown in Figure 12.24, which shows the
displacement curves corresponding to the current pattern.
12.4.2.2 Relation between displacement and current squared
The displacement plotted as a function of current squared is shown in Figure 12.25.
The data obtained from the XT charts between run number 258 and 278 is used in this
figure. The curves obtained from the series AC tests agree with the data from the DC tests,
(compare Figures 12.15 and 12.25). As in the single-coil tests, the maximum average
value at 30 kA was about 0.5 mm.
132
January 1992
US-DPC Test Report
E<
C
(0
C>C
Ccs:
co
CD
133
C
January 1992
US-DPC Test Report
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E
roV
EE
C'a'
EE
Ea
-
E
C>-~
OD
134
134
January 1992
US-DPC Test Report
4=5
E
E
E
0.-
In
=3
'Z3
4,-
LE
#C-)
135
January 1992
US-DPC Test Report
14
E
E
C-
to
C-.
C-3
-CC>,
W)')
NI)
01L
Cr,
J
L
136
January 1992
US-DPC Test Report
0.5
2.0
*155
0
1.5
E
E
~
1.0-
USDS02
-- 0.5
.
S 0.5--
0
-o .5
USDSO1
- - - - --
0
5
15
10
CURRENT
1.5
20
25
30
(kA)
Figure 12.20 - The plots of radial displacement versus current are shown for run number 155. A small
hysteresis effect is revealed.
137
2.0
January 1992
US-DPC Test Report
0.5
2.0
44243
0
1.5
E
E
USDS02
-- 0.5
1.0 U
U
j0.5
a..
-1
0
-0.5
0
5
15 20
10
CURRENT (kA)
25
-2.0
30
Figure 12.21 - The plots of radial displacement versus current are shown for run number 243. A small
hysteresis effect is revealed.
138
5
January 1992
US-DPC Test Report
2.0
0.5
1.5
0
E
E
USDS02
#
1.0
#
6
243
-- 0.5
-
155
U-1
iO.5 --
1.0
0.
# 155--
4243
0
-0.5,
-1.5
USDS01
0
'
5
12.0
I
15 20 25
10
CURRENT (kA)
30
Figure 12.22 - A comparison of the radial displacements of run numbers 155 and 243 show that the measured
displacements of run number 155 are larger than the measured displacements of run number 243 for both
USDS01 and USD302.
139
January 1992
US-DPC Test Report
0
LU
0
U)
C)
C4
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0
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January 1992
US-DPC Test Report
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US-DPC Test Report
January 1992
US-DPC Test Report
January 1992
0
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142
US-DPC Test Report
January 1992
12.5. Strain measurements during DC charge tests
12.5.1 Single-coil tests
Figure 12.26 shows measured bolt strains plotted against current squared. In this
figure negative values show that the bolts contract. Solid lines are least square regression
lines for average values and are in proportion to current squared. The maximum strains of
the outside and inside bolts are about 10, -60 ppm, respectively. It is interesting that small
positive values were measured in spite of pretensile forces applied to the bolts.
Note that data errors depend on the locations of the bolts. Considering the strain of the
same bolt, the data are reproducible and there are few apparent errors as shown in Figure
12.27, which plots bolt strains of STSS13 (outside) and STSS01 (inside) located in the
no. 1 structure (see Figure 12.2). Figure 12.28 shows the distribution of bolt strain in the
circumferential direction as current increases, with location defined by number as shown in
Figure 12.2. It is clear that the scatter shown in Figure 12.26 depends on location.
Figure 12.29 shows the distribution of bolt strain at 30 kA in the circumferential
direction. This figure indicates good reproducibility in strain measurements.
12.5.2 Series-coil tests (U1+U2+US)
Figure 12.30 shows measured bolt strains plotted against current squared in series-coil
tests, where negative values show that the bolts contract. Solid lines are least square
regression lines for average values and are in proportion to current squared. The maximum
strains of the outside and inside bolts are about -200, -380 ppm, respectively. The inside
value is larger than the outside one. This corresponds to the magnetic force distribution.
As in single-coil tests, data errors depend on the locations of the bolts. Noticing the
strain of the same bolt, there are few errors as shown in Figure 12.31, which shows the
bolt strains of STSS13 and STSSO1.
Figures 12.32 and 12.33 show the distribution of bolt strains in the circumferential
direction as current increases. Location is given by sensor number (STSS) as shown in
Figure 12.2. Figure 12.34, which plots the bolt strain of STSS01 at 15 kA and 25 kA,
shows there was good reproducibility in strain measurements during series-coil tests.
143
January 1992
January 1992
US-DPC Test Report
US-DPC Test Report
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January 1992
US-DPC Test Report
12.6 Summary
The following items summarize the mechanical behavior of the US-DPC during the
experiment.
1. Displacements of the coil showed unstable behavior when the coil was charged the
first time. Occasional discontinuous displacements that correlated with balancevoltage spikes were observed. However, displacements were stable during all
subsequent charges.
2. A small hysteresis effect was observed in the displacement measurements.
3. Measured average displacements were in proportion to current squared up to about
300 kA 2 in single-coil and 200 kA 2 in series-coil tests. Displacements saturated at
about 0.45 mm in single-coil and 0.6 mm in series-coil tests.
4. The results of the displacement measurements did not depend on operating mode
(DC, AC, single or series) if data scatter was taken into account. The measured
average displacements had a scatter within about 0.2 mm. Measured average
displacements at 30 kA are shown in Table 12.2.
Table 12.2 -Average displacement at 30 kA as a function of mode.
Mode
DC Single
DC Series
AC Single
AC Series
Displacement
0.45 mm
0.6 mm
0.5 mm
0.5 mm
5. Measured bolt strains were proportional to current squared, with scatter in data from
bolt to bolt. In single-coil tests, positive strains were measured in spite of the
existence of an applied pretension force on the bolts. A summary of strain
measurements is shown in Table 12.3.
153
January 1992
US-DPC Test Report
Table 12.3 - Average bolt strain at 30 kA as a function of mode.
Mode
Single
Series
Strain
Outside
10 ppm
-200 ppm
Inside
-60 ppm
-380 ppm
6. Stable mechanical properties of the US-DPC were demonstrated by good
reproducibility of the measured data.
154
January 1992
US-DPC Test Report
13. Recommendations for future work
Recommendations for future work are as follows:
1. Ramp-rate limitation
The physical mechanism of the ramp-rate limitation and its relationship to limiting
current should be clarified and understood. The trigger mechanism of the limitation needs
to be identified (flux jumps? wire motion?).
2. Calibration of mass flow meters
All mass flow meters should be calibrated throughout their entire measurement ranges
in future large-coil tests. The accuracy of mass flow measurements directly determines the
accuracy of AC loss measurements.
3. Joints
A study of the benefits of cooling joints with supercritical versus liquid helium should
be made to determine which is the superior choice for poloidal coils. Also, efforts should
be directed toward the fabrication of low resistance, low-AC-loss joints.
4. Flow choking
Flow choking and flow unbalances in parallel paths in large coils should be studied.
The effects of uneven nuclear and AC loss heating should considered.
5. Current transfer voltages
The perennial question of current transfer between strands of cable-in-conduit
conductors should be studied further. The study of current distribution among strands in
the cable should be continued.
6. Dual-flow cooling
Dual-flow cooling, in which steady-state heat loads are removed by helium in channels
with relatively large hydraulic diameters, should be explored further.
7. Manufacturing process evaluation
Study of the relationship of choices made during coil manufacture to resulting coil
performance should continue.
8. AC losses
Studies of the AC losses of superconductors, especially during operation with complex
waveforms, should continue.
9. RRR
Studies of the effect of chrome plating on RRR should continue.
155
US-DPC Test Report
Appendix A.
January 1992
Publications associated with the US-DPC
A.1
Annex V
1. John F. Clarke and Yoshinori Ihara, "Annex V to the Implementing Arrangement
between the Japan Atomic Energy Research Institute and the United States Department of
Energy on Cooperation in Fusion Research and Development for the DOE-JAERI
Collaborative Program in the Development of Poloidal Coil Technology," Tokyo, May 19,
1988, available from DOE or the PFC.
A.2
Coil fabrication
2. M.M. Steeves, M.O. Hoenig, J.V. Minervini, C.R. Gibson, M.M. Morra, J. L.
Martin, R.G. Ballinger, S. Autler, T. Ichihara, R.Randall, M. Takayasu, and J.R. Hale,
"The US-DPC, a Poloidal Coil Test Insert for the Japanese Demonstration Poloidal Coil
Test Facility," IEEE Trans. Mag., MAG-24, No. 2, 1307-1310, 1988.
3. M.M. Steeves, M.O. Hoenig, M. Takayasu, R.N. Randall, J.E. Tracey, J.R. Hale,
M.M. Morra, I. Hwang, and P. Marti, "Progress in the Manufacture of the US-DPC Test
Coil," IEEE Trans. Mag., MAG-25, No. 2, 1738-1741, 1989.
4. M.M. Steeves, T.A. Painter, J.E. Tracey, M.O. Hoenig, M. Takayasu, R.N.
Randall, M.M. Morra, I.S. Hwang, and P. Marti, "Further Progress in the Manufacture of
the US-DPC Test Coil," MT-il, 1989.
5. M.M. Steeves, T.A. Painter, M. Takayasu, R.N. Randall, J.E. Tracey, I.S.
Hwang and M.O. Hoenig, "The US Demonstration Poloidal Coil," IEEE Trans. Mag. 27,
1991.
A.3
Conductor critical current
6. M. Takayasu, C.Y. Gung, M.M. Steeves, M.O. Hoenig, J.R. Hale and D.B.
Smathers, "Critical Currents of Nb3Sn Wires for the US-DPC Coil," IEEE Trans. Mag.
27, 1991.
7. M. Takayasu, M.M.Steeves, T.A.Painter, C.Y.Gung, M.O.Hoenig, "Critical
currents of Nb3Sn Wires of the US-DPC Coil," CEC-ICMC conf., Huntsville, AL, June
1991.
156
US-DPC Test Report
January 1992
Conductor AC losses
8. M. Takayasu, C.Y. Gung, M.M. Steeves, B. Oliver, D. Reisner and M.O. Hoenig,
"Calorimetric Measurement of AC Loss in Nb3Sn Superconductors," MT-11, 1989.
A.4
9. C.Y. Gung, M. Takayasu, M.M. Steeves and M.O. Hoenig, "AC Loss
Measurements of Nb3Sn Wire Carrying Transport Current," IEEE Trans. Mag. 27, 1991.
10. C.Y. Gung, M.Takayasu, M.M.Steeves, T.A.Painter, B.Oliver, D.Reisner,
M.O.Hoenig, "Comparisons of AC losses of Nb3Sn Single Strands and US-DPC
Conductor," CEC-ICMC conf., Huntsville, AL, June 1991.
A.5
Low AC loss Nb 3 Sn wire development
11. D.B. Smathers, M.B. Siddall, M.M. Steeves, M. Takayasu, and M.O. Hoenig,
"Manufacture and Evaluation of Tin Core Modified Jelly Roll Cables for the US-DPC
Coil," Adv. in Cryo. Eng, Vol.36 A, Plenum, N.Y., (1990), p. 131.
12. D.B. Smathers, P.M. O'Larey, M.M. Steeves, and M.O. Hoenig, "Production of
Tin Core Modified Jelly Roll Cable for the MIT Multipurpose Coil," IEEE Trans. Mag.24,
No. 2, 1131-1133, 1988.
A.6
Incoloy 908 development
13. I.S. Hwang, R.G, Ballinger, M.M. Morra, M.M. Steeves and M.O. Hoenig,
"Mechanical Properties of Incoloy 908 - An Update," CEC-ICMC conf., Huntsville, AL,
June 1991.
14. M.M. Morra, I.S. Hwang, R.G. Ballinger, M.M. Steeves, and M.O. Hoenig,
"Effect of Cold Work and Heat Treatment on the 4K Tensile, Fatigue and Fracture
Toughness Properties of Incoloy 908," MT-11, 1989.
15. M.M. Morra, R.G. Ballinger, J.L. Martin, M.O. Hoenig, and M.M. Steeves,
"Incoloy 908, a New Low Coefficient of Thermal Expansion Sheathing Alloy for Use in
ICCS Magnets," Adv.Cryo. Eng., 34, 157-164, 1988.
16. J.L. Martin, M.M. Morra, R.G. Ballinger, M.O. Hoenig, and M.M. Steeves,
"Tensile, Fatigue, and Fracture Toughness Properties of a New Low Coefficient of
Expansion Cryogenic Structural Alloy, 9XA," Adv.Cryo. Eng., 34., 149-156, 1988.
157
January 1992
US-DPC Test Report
A.7
Superconducting poloidal coil design
17. M.O.Hoenig and M.M. Steeves,"The Design of a High Field Ohmic Heating Coil
for a Superconducting Tokamak based on the US-DPC Test Coil.," IEEE Trans. Mag. 25,
1481-1483, 1989.
18. M.O. Hoenig, M.M. Steeves, and C.R. Gibson, "The Selection of a 30 kA Ohmic
Heating Coil Conductor," IEEE Trans. Mag. 24., 1452-1454, 1988.
158
US-DPC Test Report
Appendix B.
B.1
January 1992
AC loss measurement technique
Assumptions
The assumptions made for the AC loss measurement model were as follows:
1. Mass flow was constant at all times. Mass flow did fluctuate for a few seconds during and
after a current pulse. However, the integration time in the loss analysis was more than
three minutes, and the resultant change in loss energy due to flow fluctuations was
negligible.
2. There were no kinetic or potential energy changes.
3. Helium flow was incompressible.
4. All of the heat energy resulting from the current pulse is transported from the coil within
times approximately equal to the transit time of the SHe through the CICC. Said more
formally, the state throughout the control volume was the same at any two points in time ti
and t2, if (a) the inlet and outlet conditions at ti are the same as at e2, and (b) no current
pulse was applied for a time before ti or t2 longer than the transit time of the SHe through
the CICC.
5. The temperature of inlet supercritical helium (SHe) was constant. This assumption was
verified by continuous monitoring of the inlet temperature.
6. Exit SHe temperatures were steady at pre-current-pulse levels approximately one helium
transit time after a current pulse. The helium transit time through the 75-meter-long flow
passages of the US-DPC was approximately three minutes, corresponding to the time after
a current pulse at which the exit temperatures returned to pre-current-pulse levels
7. Pressure was constant at the inlet and outlet at all times. This assumption simplifies the
calculation of enthalpy. In reality, the pressure increased to a slightly higher value after a
current pulse, but the resultant enthalpy variation was less than 3%.
8. Frictional losses due to short-lived flow fluctuations were negligible. The measurement
model accounts for steady-state frictional losses.
B.2 Measurement model
To measure the AC losses, a thermodynamic model of a cable-in-conduit conductor (CICC)
was used. The model, shown in Figure B. 1, is a single path CICC cooled by supercritical helium
and charged with a rapid high-current pulse to induce AC losses. A pump creates SHe flow
through the CICC, and return piping passes a heat exchanger cooled by liquid helium, maintaining
a constant SHe temperature at the inlet. A control volume is fixed around the following
components:
159
US-DPC Test Report
January 1992
1. Supercritical helium from the CICC inlet to the temperature sensor located at the outlet.
2. The superconducting cable of the CICC.
3. Material other than helium or cable which can conduct away AC loss energy.
LHe Heat
Exchanger
Pump
SHe circulation piping
1
_ CV.- - - -
- -
-----------
CICC
Temperature
Sensor
Material capable of
conducting AC loss.
Figure B.1 - Schematic of a model used to find the AC losses of the US-DPC.
After applying Assumptions 1 - 3, the first law for the control volume reduces to Equation B.1,
shown being integrated from a time r, just before a current pulse to t2 such that (2 - T1) is greater
than the transit time of SHe through the CICC and the temperature at ' 2 has returned to a steady
value equal to the temperature at rt. The left-hand side of Equation B.I is the total AC loss
f2
( E2 - E) + rh
dt =d
f - hti) dt + r1n
(h
W/t dt
(B. 1)
energy created by pulsing the superconductor. The first term on the right-hand side is the
difference in energy content of the control volume atrc and T2 , and due to the choice of integration
time, equals zero (see Assumptions 4 - 7). The second term on the right-hand side is the energy
flowing into and out of the CICC, and the third term on the right-hand side is the work being done
on the control volume. The t superscript is used to denote that the terms apply to a transient period
of integration during and after a current pulse.
In order to eliminate the work term in Equation B. 1, the First Law is solved for the same
control volume during steady state conditions as shown in Equation B.2, where the ss superscript
WSS = - (h!s - h!s)
(B.2)
denotes steady state conditions. The work done to overcome frictional effects is the same during
steady state as the work during and after a current pulse (Assumption 8), and as a result Equation
160
US-DPC Test Report
January 1992
B.2 can be substituted for the work term in Equation B. 1.
After applying Assumptions 4 - 8 and substituting Equation B.2, Equation B.1 becomes
Jt2 QAc
dt = r
2
(ht - hj) dt - rnf
(h!s - his) dt
(B.3)
Finally, the helium enthalpy at the inlet of the CICC is always constant (due to Assumptions 5
and 7), and therefore ht and h s are equal and cancel each other. The reduced equation for the First
Law is then given by Equation B.4, which allows the AC loss to be found by measuring only
pressure, mass flow and temperature of the outlet SHe between 1c and T2 .
OAc dt =
'f
(B.4)
(he - hY) dt
B.3
Typical AC loss measurement
By applying the model in Section B.1 to any given flow channel of the US-DPC, we can find
the AC loss energy exiting the channel. (Figure 5.9 shows a schematic of the SHe flow channels
and sensor locations.) This section presents for run number 122 a typical AC loss measurement
performed on the corner flow channel of pancake 3.
As derived in the previous section, the AC loss energy exiting the CICC can be found from
Equation B.4. The temperature measurement resulting from the current pulse of Figure B.2 is
shown in Figure B.3. (Note that the trigger times for the data in Figures B.2 and B.3 are not the
same:) From the measurement of the outlet temperature and pressure (constant at 5.2 atmospheres
absolute), the enthalpy in Equation B.4 can be found from thermodynamic tables.
Figure B.4 shows the exit enthalpy calculated by computer at each temperature data point. Part
(a) of Figure B.4 shows the total outlet enthalpy as a function of time, and part (b) subtracts the
steady state enthalpy from the total enthalpy to find the AC loss energy as a function of time. Part
(b) is then integrated by computer and multiplied by the mass flow to find the AC loss exiting the
channel. The same procedure is used on the remaining flow channels of the US-DPC and summed
to find the total AC loss of each run.
161
US-DPC Test Report
January 1992
30
25
20
15
10
5
Q
0
-5
I
I
I
U
I
I
i (
j
I
'3
zu
Time (s)
Figure B.2 - The current pulse applied to the US-DPC for run number 122 is shown. The parameters of the current
pulse are as follows.
Flat top current = 25 kA (corresponding to a maximum field of 4.73 Tesla)
Ramp-up time = 1.75 seconds
Ramp-down time = 1.75 seconds
Flat top time = 3.0 seconds
4.90
4.85
'
4.80
I______
______
______
/
' '
4.75.
KY
4.7
4.65
-44
0
4
-
50
100
150
200
250
300
Time (s)
Figure B.3 - The above measurement shows the SHe temperature as it exits the corner flow channel of pancake 3 for
run number 122.
162
US-DPC Test Report
January 1992
14
14.0-
13.8
z
-- I-
L
:13.613.4
~L1
-4-
-4
-4---------- +
4
-4
-4------
.1.
4
*t.
4
:13.21-
12.8-
I
0
.
.
I
.
100
50
150
I
. .
.
200
250
3( )
(a) total enthalpy (h') exiting the corner flow channel of pancake 3 for run number 122.
1.2)
1.0-
H
I
L :cI
[___
____
0.80.6 -4-
-
+ -i------
4
1
0.40.2'
()-I~-t
t
-0.2-I- I I I I I I I I I I I I I I I 1 1
200
0
50
100
150
1I
250
300
(b) AC loss portion (hI - h!S) of the enthalpy shown in part (a)
Figure B.4 - The enthalpy of the exit SHe is found from the temperature profile and pressure of the exit SHe. Part (a)
shows the total enthalpy as a function of time (hi) exiting the corner flow channel of pancake 3, and part (b) shows the
AC loss portion (h1 - his) of the enthalpy shown in part (a).
163
January 1992
US-DPC Test Report
Pressure and mass flow measurements of example
This section provides the inlet and outlet pressures and mass flows of the corner flow channel
of pancake 3 for run 122 (Figures B.5 - B.8) for the reader's reference. The inlet temperature
measurements during the run were constant. Also, the pressures, mass flows and temperatures
were monitored continuously at long times before and after each run to insure that the conditions
remained steady in accordance with the assumptions. The trigger times for the data in Figures B.2,
B.7 and B.8 are the same. However, the trigger times for the data in Figures B.5 and B.6 differ
from the other graphs.
B.4
6.7 1
6.66.5.
1
1
1
1
A~.__
'C
AAMAWM)I
6.46.34..
0
10
20
.4.
30
.4
40
50
Time (s)
Figure B.5 - The pressure at the inlet of double pancake B shows the slight rise that results from the current pulse of
run 122. The current pulse begins at about the 19 second mark (1 kg/cm2 = 0.968 atmospher6).
164
January 1992
US-DPC Test Report
5. A0
5. 55- -
- - - - --
__1_
-- - -
5. 50
5. 45
5.35-
I
I
I
I
I
0
I
10
.
20
I. I .
30
-
-
-
-
-
5. 40-
I I I I
-
-
50
40
Time (s)
Figure B.6 - The pressure at the outlet of the corner flow channel of pancake 3 shows the slight rise resulting from the
current pulse of run 122. The current pulse begins at about the 19 second mark (1 kg/cm 2 = 0.968 atmosphere).
250
A
225
A
V
~200
'-~175
150
125
9 100
r-1
75
0
10
5
15
20
Time (s)
Figure B.7 - The mass flow at the inlet of double pancake B reveals the choking reaction to the current pulse of run 122.
The equation for converting AP to mass flow is
Helium density is approximately 0.140
rh (g/s) = 2.36 \/p(g/cm3) x AP (mrnmAQ)
g/cm 3.
165
January 1992
US-DPC Test Report
125
I
IU75
5025
-
0I
0
,I I
,
I
,
5
10
I ,
I ,
15
'I ,
20
Time (s)
Figure B.8 - The mass flow at the outlet of the corner channel of pancake 3 reveals the choking reaction to the current
pulse of run 122. The equation for converting AP to mass flow is
Helium density is approximately 0.140 g/cm 3.
166
it (g/s) = 1.18
Ip(g/cm3)
x AP (mmAQ)
US-DPC Test Report
Appendix C.
Run
No.
74
75
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
96
97
98
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
122
123
124
127
128
131
132
134
136
137
138
January 1992
Table of losses of AC test runs
AC Losses of Double Pancake B (single-coil tests) part 1 of 3
Charging
Imax
Bmax
Tm
AC
inlet
inlet
Pattern
(kA)
(T)
(S)
Loss
flow temp.
()
(g/s)
(K)
triangle
triangle
triangle
triangle
triangle
triangle
triangle
triangle
triangle
triangle
triangle
triangle
triangle
triangle
triangle
triangle
triangle
triangle
triangle
triangle
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
triangle
triangle
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
1.5
1.5
1.5
1.5
1.5
6
6
12
18
18
24
24
27
30
28.5
1.5
1.5
29
29
29
12
18
21
15
15
15
15
15
15
15
20
20
20
20
1.5
1.5
20
20
20
25
25
25
25
25
30
30
22
23
31
23
32
27.5
18
19
0.284
0.284
0.284
0.284
0.284
1.134
1.134
2.268
3.402
3.402
4.536
4.536
5.103
5.670
5.387
0.284
0.284
5.481
5.481
5.481
2.268
3.402
3.969
2.835
2.835
2.835
2.835
2.835
2.835
2.835
3.780
3.780
3.780
3.780
0.284
0.284
3.780
3.780
3.780
4.725
4.725
4.725
4.725
4.725
5.670
5.670
4.158
4.347
5.859
4.347
6.048
5.197
3.402
3.591
5
5
5
0.5
0.5
0.5
0.5
0.5
0.5
247
234
548
897
0.5
0.5
0.5
0.5
0.5
0.5
5
5
0.5
0.5
0.5
0.5
0.5
0.5
5
2
1.5
1
0.75
0.5
0.3
1.5
5
2
1
5
1389
1388
1833
3680
2240
12.36
12.37
12.34
12.36
12.34
12.42
12.37
12.44
13.94
12.32
2290
2550
2310
566
983
1324
598
618
636
671
701
754
865
1029
790
848
975
12.61
12.66
12.64
12.60
12.61
12.65
12.55
12.56
12.65
12.58
12.67
12.65
12.64
12.49
12.57
12.57
12.63
1213
1359
1652
13.01
13.05
13.07
1111
1185
1267
1346
2280
2390
1360
1538
12.80
12.80
13.05
13.03
12.28
12.01
13.15
13.10
12.41
13.53
12.40
4.43
13.20
13.19
5
0.75
0.5
0.3
6
6
3
2
1.75
11
8
1
1
11
1
11
5
0.2
0.2
167
2500
1456
1624
4.75
4.74
4.75
4.75
4.74
4.74
4.75
4.75
4.75
4.74
4.74
4.75
4.75
4.74
4.74
4.74
4.74
4.74
4.73
4.73
4.74
4.74
4.73
4.73
4.73
4.73
4.73
4.73
4.73
4.73
4.73
4.73
4.73
4.73
4.73
4.72
4.73
4.73
4.73
4.73
4.73
4.73
4.73
4.74
4.74
4.75
4.78
4.73
4.34
4.26
4.27
4.27
4.27
inlet press.
(absolute)
(atm.)
5.929
5.861
5.977
6.050
6.050
6.098
6.118
6.142
6.142
6.074
6.074
6.118
6.098
6.118
6.074
6.239
6.287
6.331
6.287
6.239
6.287
6.355
6.239
6.331
6.355
6.355
6.355
6.403
6.287
6.311
6.331
6.331
6.331
6.287
6.142
6.166
6.190
6.190
6.190
6.166
6.166
6.166
6.142
6.142
6.142
6.166
6.098
6.524
6.026
6.166
6.142
6.074
6.074
6.098
January 1992
US-DPC Test Report
Run
No.
AC Losses of Double Pancake B (single-coil tests) part 2 of 3
Tm
AC
inlet
inlet
Charging
Imax
Bmax
Pattern
(kA)
(T)
_____
____
139
140
141
142
143
144
145
146
149
150
151
155
157
158
160
162
163
164
166
167
169
170
171
172
174
175
176
177
178
179
180
183
184
185
187
188
190
192
194
195
trapezoid
triangle
triangle
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
2-step trapezoid
2-step trapezoid
2-step trapezoid
trapezoid
trapezoid
trapezoid
double trapezoid
double trapezoid
double trapezoid
triple trapezoid
triple trapezoid
triangle
triangle
quadruple trap.
quadruple trap.
quadruple trap.
quadruple trap.
quadruple trap.
round-edge trap.
round-edge trap.
round-edge trap.
round-edge trap.
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
round-edge trap.
round-edge trap.
round-edge trap.
2-step trapezoid
20
1.5
1.5
22
22
22
22
22
15
22/27
22/30
22/30
28
28
29
12
18
20
12
18
1.5
1.5
12
12
18
20
22
20
25
28
30
30.5
30.5
30.5
29.5
31
33
34
35
20/25
3.780
0.284
0.284
4.158
4.158
4.158
4.158
4.158
2.835
5.103
5.670
5.670
5.292
5.292
5.481
2.268
3.402
3.780
2.268
3.402
0.284
0.284
2.268
2.268
3.402
3.780
4.158
3.780
4.725
5.292
5.670
5.764
5.764
5.764
5.575
5.859
6.237
6.426
6.615
4.725
(S)
_______
0.2
5
5
5
2
1.5
0.75
0.5
0.2
1/1/1
1/1/1
2/3/0.75
6
5
8
0.5
0.5
0.5
0.5
0.5
5
5
0.5
0.5
1.75
1.75
1.75
2.8
3.5
3.9
4.2
10
9
8
9
9
12
14
14
4/3/1
168
Loss
flow
temp.
inlet press.
(absolute)
Wk)
(g/s)
(K)
(atm.-)
1879
-----957
1025
1101
1488
1552
1022
1580
1839
1772
1220
1190
1750
1071
2000
2550
--3220
--2070
2930
3540
4170
1156
1578
-2180
1910
1909
1930
1780
1993
2280
2360
2530
1204
13.25
---12.41
12.41
12.45
12.53
12.48
12.45
11.36
12.50
12.49
12.17
12.35
11.36
12.48
12.41
12.42
12.53
12.50
----13.10
12.95
12.90
12.95
13.05
13.10
13.13
13.08
12.18
12.01
11.96
12.05
12.00
12.58
13.16
11.92
12.29
4.26
4.36
4.36
4.36
4.36
4.37
4.37
4.37
4.37
4.37
4.37
4.39
4.38
4.37
4.38
4.38
4.37
4.37
4.38
4.37
4.40
4.40
4.40
4.40
4.40
4.40
4.40
4.40
4.40
4.40
4.40
4.40
4.40
4.40
4.41
4.40
4.38
4.40
4.41
4.39
6.074
5.910
5.885
5.885
5.929
6.002
6.050
6.074
6.050
6.074
6.050
5.885
6.002
6.050
5.977
5.953
6.002
6.026
6.026
6.074
5.953
6.098
6.118
6.118
6.142
6.166
6.166
6.118
6.166
6.166
6.190
6.074
6.118
6.142
6.074
6.098
5.552
5.247
5.527
5.673
US-DPC Test Report
Run
No.
196
197
198
199
200
202
205
206
207
208
210
211
212
213
214
215216
219
221
222
224
225
227
228
229
230
231
233
235
236
241
242
243
244
246
247
248
249
250
251
January 1992
AC Losses of Double Pancake B (single-coil tests) part 3 of 3
Charging
Imax
Bmax
Tm
AC
inlet
inlet
Pattern
(kA)
(T)
(S)
Loss
flow temp.
()
2-step trapezoid
2-step trapezoid
2-step trapezoid
triangle
triangle
trapezoid
trapezoid
rippled trapezoid
rippled trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
2-step trapezoid
2-step trapezoid
2-step trapezoid
2-step + ripple
2-step + ripple
triangle
triangle
trapezoid
trapezoid
trapezoid
trapezoid
rippled trapezoid
rippled trapezoid
trapezoid
trapezoid
rippled trapezoid
rippled trapezoid
trapezoid
trapezoid
trapezoid
trapezoid
round-edge trap.
rippled trapezoid
20/25
20/25
20/25
1.5
1.5
22
20
20
20
23
20
20
20
20
23
20
23
22/27
22/30
22/30
22/29
22/29
1.5
1.5
20
23
24
25
25
26
30
30
30
30
20
20
20
20
30
30
4.725
4.725
4.725
0.284
0.284
4.158
3.780
3.780
3.780
4.347
3.780
3.780
3.780
3.780
4.347
3.780
4.347
5.103
5.670
5.670
5.481
5.481
0.284
0.284
3.780
4.347
4.536
4.725
4.725
4.914
5.670
5.670
5.670
5.670
3.780
3.780
3.780
3.780
5.670
5.670
1.6/3/0.4
0.8/3/0.2
0.4/3/0.1
5
5
1
1
1
1
1
5
1
0.5
0.3
1
0.3
1
1/1/1
1/1/1.6
1/1/1/6
1/1/1.6
1/1/1.6
5
5
1
1
1
1.5
1.5
1.5
11
10
9
8
5
1.5
0.75
0.3
6/3/1.9/3/1
7
169
1264
1520
1983
--1421
1238
1530
3910
1338
--------
1672
1965
2020
2070
2420
------1395
1513
1314
1887
-1997
-3210
3130
1414
1630
1475
2495
-3280
inlet press.
(absolute)
(g/s)
(K)
(atm.)
12.27
12.24
12.39
----12.83
12.67
12.64
12.70
12.78
8.30
8.38
8.49
8.37
8.40
10.00
9.88
12.741
12.74
12.57
12.27
11.54
4.39
4.39
4.39
4.36
4.37
4.36
4.35
4.35
4.35
4.37
4.36
4.36
4.36
4.36
4.37
4.36
4.37
4.38
4.37
4.37
4.37
4.37
4.71
4.71
4.70
4.70
4.70
5.740
5.764
5.789
2.812
2.763
2.763
2.787
2.787
2.787
6.026
6.098
6.098
6.098
6.074
6.098
6.098
6.050
5.929
5.910
5.977
5.929
5.953
5.600
5.624
5.624
5.648
5.789
5.837
5.789
5.789
5.740
5.837
5.861
5.861
6.002
6.050
6.190
5.910
6.215
6.142
-7.56
7.64
7.58
7.47
7.47
---6.78
-7.68
7.67
7.72
7.72
7.72
4.80
-12.92
4.69
4.69
4.68
4.67
4.67
4.67
6.22
6.25
6.25
6.24
4.70
4.69
US-DPC Test Report
January 1992
AC Losses of Double Pancake B (series-coil tests)
Run
No.
Charging
Pattern
Imax
(kA)
Bmax
(T)
Tm
(S)
AC
Loss
254
255
256
257
258
259
261
262
265
267
268
269
270
271
272
273
274
277
triangle
triangle
triangle
triangle
triangle
triangle
trapezoid
trapezoid
trapezoid
round-edge trap.
round-edge trap.
round-edge trap.
round-edge trap.
round-edge trap.
trapezoid
trapezoid
trapezoid
rippled trapezoid
1.5
1.5
6
12
18
24
12
18
21
12
15
18
20
22
18
18
18
22
0.461
0.461
1.844
3.688
5.532
7.376
3.688
5.532
6.454
3.688
4.610
5.532
6.147
6.761
5.532
5.532
5.532
6.761
5
5
0.75
0.75
0.75
0.75
1
1
1
1.7
2.1
2.5
2.8
3
0.75
1.5
5
1
-------322?
674?
-747
935
431
-----2140?
----877
624
---1189
170
(kJ)
inlet
flow
inlet
temp.
inlet press.
(absolute)
(g/s)
(K)
(atm.)
-----12.77
12.82
12.84
12.90
12.88
12.94
13.06
12.08
12.08
12.01
11.75
-12.02
12.05
4.32
4.32
4.33
4.32
4.32
4.33
4.34
4.33
4.34
4.36
4.36
4.38
4.40
4.40
4.35
4.36
4.36
4.37
6.026
6.026
6.002
6.026
5.977
5.977
5.813
5.861
5.953
5.764
5.837
5.552
5.503
12.62
5.977
5.953
5.910
5.861
January 1992
US-DPC Test Report
Listing of coil test runs
Appendix D.
. . . . . . . . . . . . . . . .
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US-DPC Test Report
January 1992
Y.
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US-DPC Test Report
January 1992
. . . . . . . . . . . . . . . . . . . . . .
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January 1992
US-DPC Test Report
4)
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January 1992
US-DPC Test Report
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January 1992
US-DPC Test Report
. ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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-n
V-
-f
eq
..
"n
n
og
z
176
0
1%0
"-
January 1992
US-DPC Test Report
'U
00
H
0 0 0 0 0
C)
4)n
4)on
n
=Mmmm--
4)
:o
I,,
4)
'U
177
January 1992
US-DPC Test Report
Run number
74
DM Shot number
Dole
Total inlet flow
Inlet pressure
Connection Single coil
Mode AC
Description Single riangle
12/10i90
Tne
-/a
5.929 atm
X K
Inlettenperaturm
Bu
0.284 T
Tm
5 s
0.057 Tfs
0.200 1/s
Bm/Irm
1/I)m
Waveform
TIME (s)
2
Im=
1.5 kA
Quench ?
INrLAL
T
OUMET
(K]
x
X
X
X
Imnrm
s
0.30 kA/s
s
_
X
X
X
X
Flat to?
1.5 kA
AC LOSS [J]
AT
PEAK
Tm
No
Quench time
__
__
3 cable
3 comer
4 comer
4 cable
P
-
OUTLET
INIET
53
Tm=T1
MASS FLOW [g/s]
PANCAKE
Tl=
11:32
X
X
X
X
X
x
X xX
5
6
X
Runnumber
75
DMShotnumber 92
Date
Tune
Bm
Tm
jts
Total inlet flow
Inlet pressure
Inlet temperature
Connection Single coil
Mode AC
Description Single irianule
12/10/90
5.861 atm
4.752 K
Bm/rm
l/rm
Waveform
im .-
Tl=
55
T
Im=
1.5 kA
0.284
5
0.057
0.200
Quench?
No
Quench
_m _
11:44
T
s
Im
Flat top
m/Irm
TIs
1/s
Al
U
*T1*;4T1*i
TIME (s)
PANCAKE
Tm=T1
MASS FLOW [g/s]
INLET OUTLET
M
IN~''INIAL
Ix
2
3 cabl
3 comer
4 coner
4 cable
TURE [K]
omEr
PEAK
AT
AC LOSS [J]
_______
___
__
_4.715
4.752
X
X
X
4.805
4.75
0.04
4.83
0.03
X
X
4.626
4.66
4.713
4.75
4.753
4.78
0.03
0.03
0.03
4.67
0.04
5
4.584
4.629
6
4.584
6.513
s
X
X
X
X
x
178
1.5 kA
s
0.30 kA/s
January 1992
US-DPC Test Report
Run number
DM Shot number
76
Date
Connection Single coil
Mode AC
Description Miss shot
Tune
13:25
Total inlet flow
Its
BIM
T
Inlet pressure
Inlet temperatire
-an
4.745 K
Tin
s
Flat top
T/s
Iinfm
B&lm
1/rm
fin
kA
s
kA/s
1/8
Waveform
Quench 7
No
Quench time
INLE
ouT
_T
E
I
UTIAL
OU_
ACLOSS [J]
AT
PEAK
X
x
X
X
2
X
3 cable ---3comer
----X
XC
X
4 comer
4c5
(K]
M
MASS FLOW [g/s]
PANCAKE
s
X
7
4.745---
X
XX
XX
eI
4.571
X
6
Run number
Connection
Mode
Description
77
X__
IC
-----
-
DM Shotnumber 116
Date
Twue
Bin
TM
Bm/rm
x 2A
Total inlet flow
Inlet pressure
Inlet temperature
Single coil
AC
Single triangle
12/10)90
5.977 ai
4.735 K
1/rm
13:43
0.284 T
5 s
0.057 T/s
0.200 1/s
In
Flat top
1.5 kA
Im/Im
0.30 kA/s
Wavefonn
-
Ss
-TI=
Quench?
1.5 kA
in=
No
iET1.g4T1*t
TIME (s)
MASS FLOW [g/s]
PANCAKE
INLET
Ix
2
3 cable
3 comer
OUTLET
INL
TEMPERATURE [K]
OUTLEr
InAL
PEAK
AC LOSS
AT
__
4.75
0.05
4.792
4.614
4.83
4.66
0.04
0.04
X
X
4.707
4.742
4.74
4.78
4.67
0.04
X
0.04
X
0.05
5.13
0.06
_4.709
x
X
4 corer
4 cable
4
X
X
X
4566
5
6
Quench time
Tm=T1
X
4.566
4.616
5.078
179
X
X
s
[J]
s
January 1992
US-DPC Test Report
DMShotnumber
78
Run number
Single coil
AC
Connection
Mode
Sinae triangle
Description
Total inletflow
x 9/s
Bm
Inlet pressre
1nlettmpearatUe
6.050 ai_
4.745 K
Bm/lrn
-
0
T1=
0.5 s
Iii=
1.5 kA
In
0.284 T
.5 s
Hat top
0.568 T/s
Im/rm
'T
1/Im
Waveform
14:15
Tna
12/10/90
De
117
1.5 kA
9
3.00 kA/s
2.000 1/s
Quench 7
No
-i
;*T1*-4T1*I
TIME (s)
Tm=T1
MASS FLOW g/s[K]
PANCAKEOu
INLEM
oUmxr
Quenchtime
ACLOSS
INLET
rtIAL
s
J
AT
PMAX
x
X
X come4.74
4.621
4.64
x
4.708
4.72
0.02
0.01
0.01
0.01
X
4.748
4.76
0.01
4.573
4.622
4.64
0.02
4.57_
5.084
5.10
0.02
2
4 comer
cable
S
6
X
79
Run numiber
4.709
4.73
4.8
4.81
DMShot nmber X
Connection
Mode
Single coil
AC
Description
Single triangle
X
X
X
x
X
X
Tune
12/1090
DaE
Total inle flow
X irs
Bm
Inletpressure
Inlet temperature
6.050 aim
4.745 K
Tm
Bmim
1/rm
Waveform
T1=
0.Ss
SIm=
1.5 kA
Quench ?
14:32
Im
0.284 T
.5 S
0.568 T/s
2.000 1/s
Flat top
Im/rm
No
0I
TIME (s)
PANCAKE
Quench fim
Tm=T1
TEMPERATURE
MASSr FLOW [/s
PEAK
-TAL
ACLOSS [J]
AT
x
X
x
2x
- c----
3 comer
x
4 comer
4.745
-
X
Xx
X
XX
-
______
4cbex
5X
---:::
s
4.573
LX
180
- ---__
1.5 kA
s
3.00 kA/s
January 1992
US-DPC Test Report
Run number
DM Shot number 118
80
Dim
Wavefonn
kni
6.098 aim
4.737 K
T1=
0.Ss
Im =
1.5 kA
14:43
fn
Flat top
s
T/s Im/rm
1/s
T
1.134
.5
2.268
2.000
Bm
Tm
43.3 jfs
Toalinletflow
Inlet pressure
InlettemperaeUrC
Single coil
Mode AC
Description Singletrianale
Connection
T1me
12/10/90
Bm/lm
1/rm-
6 kA
3
12.00 kA/s
No
Quench 7
Al
g4T10g4T1*0
TIME (s)
MASS FLOW [g/s]
PANCKE M
INI UTLT
1
2
3 cable
1X
3 comer
4 comer
12.36
E
-
EAUEW
METOUTIr
miAL I
AT
1.932
4.704
4.795
4.78
4.86
0.08
0.06
49.86
2.705
4.616
4.68
0.07
61.28
3.296
4.703
4.78
0.07
4.744
4.80
4.618
4.69
0.06
0.08
84.21
2.107
5.077
5.15
0.07
4
19.47
763.87
135.73
51.52
298.1
Time
Bmtrm
1/rm
1.134
.5
2.268
2.000
Quench ?
No
43.49 gas
6.118 ain
4.737 K
Total inlet flow
Inlet pressure
Inlet temperatue
Connection Single coil
Mode AC
Description Single trianale
218.9
12/10190
D
DM Shot number 119-
81
s
AC LOSS (J]
PEAK
4 cable
5
Run number
Quench time
Tm=T1
3m
Tm
14:54
T
s
T/s
Tm
Flat top
Im/rm
1/s
WaveformT
-T1=
Im=
O.Ss
6kA
0 1
4T14"4T1*1
TIME (s)
Tm=TI
MASS FLOW [g/s]
PANCAKE
1
-
-N
INLER
11.55
2
3 cable
3 comer
4 corner
4 cable
___WTEMPERATURE (K]
ornF~
AC
LOSS [J]
1
COS
PEAK
AT-
4.706
4.805
4.616
4.703
4.749
4.78
4.85
4.68
4.77
4.80
0.07
4.623
4.69
0.07
5.091
5.15
0.06
INLET
mAL
s
x
1.925
2.71
3.31
2.17
19.57
6
Iou7
Quenchtime
4.737
4.567
181
0.05
0.06
0.07
0.05
211
39.5
61.3
84.1
49.5
100.8
711.4
133.6
266
6 kA
s
12.00 kA/s
January 1992
US-DPC Test Report
DM Shot number 120
82
Run nunber
Single coil
Connection
Mode AC
Description Sinile triangle
Daft
15:35
Tme
12/10)90
Total inlet flow
43.31 P/s
Bin
2.268 T
Iletpressure
6.142 arn
TM
.5 s
Waveform
TI=
Flat top
IsTim
4.536
2.0001/fs
Bh/rm
1Irm
4.747 K
Tnlettemperaure
Im
12 kA
s
24.00 kA/
0.5s
Im=
No
Quench?
12kA
I
0
r4TI4MT1*I
Tm=T1
TIME (a)
[g
MASS FLOW
PANCAK
1
211.5
3 cable
3 comer
4 comer
4 cable
5
6
Run number
N
Quenchtime
TEMPERATURE [K]
-
Ram
L
A
oUrmEr
PEAK
__X
1.94
2.71
3.31
2.17
12.34
19.47
19.7
4.747
457
DM Shot number
83
0.14
4.8
4.62
4.708
4.747
4.92
4.75
4.85
4.87
0.12
0.13
109.6
136.6
246.2
0.14
0.12
182.4
302
4.624
5.085
4.76
0.13
5.22
0.13
Dae
121
T1=
Lni
Im=
INLEF
18 kA
INrAL
WNET
AT
x
11.48
4.709
4.95
0.24
3 cable
3 corner
4 corner
4.8
5.00
12.36
4.621
4.83
4.709
4.749
4.94
4.94
0.20
0.21
0.23
0.19
4.624
5.086
19464.7
4.86
5.27
19.46
-
182
6.804 TM
2.000 1/s
1/rm
Quench?
in
Flat top
Tm/Im
No
s
ACLOSS [J]
PEAK
11.48
4.745
3.402 T
.5 a
awrm
TEMPERATURE [K]
1
4 cable
Bin
Tm
15:46
Quench time
2
2.732
3.312
2.172
Tine
12/10#90
-
OUTLET
1.939
626
0.53
Tm=T1
TIME (a)
1615.2
119.6
43.3 g/s
6.142 abn
4.745 K
Total inlet flow
Inlet pressure
Inlet temperatle
WaveformT
MASS FLOW [g/s]
441
4.709
4.85
Connection Single coil
Mode AC
Description Single triangle
5
6
ACLOSS [ J]
AT
0.23
0.18
692.2
183.4
405.6
222.2
2572.5
49
293.6
197.4
983.7
18 kA
s
36.00 kA/s
January 1992
US-DPC Test Report
Run number
DM Shot number
84
Date
126
Inlet pressure
AC
Mode
Inlet temperature
Single triangle
Description
g/s
Bm
6.074 aim
4.745 K
Tm
Bm/Tm
1/'m
43.32
Total inlet flow
Single coil
Connection
Time
12/10/90
15:56
3.402 T
.5 s
6.804 T/s
2.000 1/s
Im
Flat top
Im/Tm
18 kA
s
36.00 kA/s
Waveform
I
0
-
-
-
T=
0.5s
im=
18
I
f*T1"T11*'j
TIME (s)
_NEUTLE
NE
11.49
1
2
3 cable ---3 comer
4 comer
4 cable
2.34
1.943
----2.728
3.313
2.172
4.745
_NL
aRML
OUTLET
Run number
Connection
Mode
Description
DM Shot number
85
X
4.709
4.801
4.95
5.00
0.24
0.19
181.8
4.62
4.709
4.83
4.94
0.21
0.23
217.4
288.8
-99.
4.626
Date
127
Single triangle
0.5
Im=
16:06
Im
4.536 T
Bm
.5 s
9.072 T/s
2.000 1/s
Tm
Bm/Tm
l/Tm
Flat top
hn/Tm
s
No
Quench ?
24 kA
If
*TI*v4T1-WI
TIME (s)
Tm = TI
MASS FLOW [g/s]
INLET
OUTLET
N
12.42
5
19.55
TEMPERATURE [K]
OUTLET
NdrrIAL
PEAK
Quench time
s
AC LOSS [J ]
AT
x
11.62
2
3 cable
3 comer
4 comer
4 cable
6
Time
12/10/90
6.074 atm
4.741 K
Inlet pressure
Inlet temperature
AC
1382.6
_
43.59 g/s
Total inlet flow
Single coil
399.2
zi I
-4.63
-5.09
TI=
1
694.6
______
Waveform
PANCAKE
AC LOSS [J]
AT
PEAK
5.086
6
s
EMTERATUTE [K]
________
5
19.49
5
Quench time
Tm=Tl
MASS FLOW [g/s]
PCAKE
0
No
Quench ?
kA
1.949
2.748
3.322
.179
4.571
4.706
4.798
4.618
4.706
4.746
5.07
5.10
4.94
5.05
5.04
0.36
0.30
0.32
0.34
0.29
4.621
4.97
0.35
5.08
5.35
0.27
183
1064
300.9
637.4
4000.5
4
.
444.6
751.1
1548
1
1
1
24 kA
s
48.00 kA/s
January 1992
US-DPC Test Report
DM Shot number
86
Run number
Total inlet flow
Connection Single coil
Mode AC
Description Single triangie
43.3 x/s
6.118 a__
4.739 K
Inletpressure
Inlettaapaaure
Time
12110/90
Date
122
16:19
Tm
4.536 T
Bm
Tm
.5
Bm/Fm
1/frm
s
Flattop
9.072 TIs
2.000 1/s
24 kA
s
Tm/Fm
48.00 kA/s
Im
27 kA
0 s
54.00 kA/s
Waveform
TIME (s)
MASS
M
PA
1
2
3 cable
INLE
OUTLET
Dm
DUUAL
M
AC LOSS [J]
OUTLET
PEAK
AT
5.07
5.10
0.36
0.30
11X51
4.708
-
1.919
-----
----
4.739
Connection
Mode
Description
629
-6-9
4.617
4.94
0.32
333
2.16
5.05
5.04
439
320
4.62
4.97
0.34
0.29
0.35
5.086
5.35
0.27
4.7_
DM Shot number
87
Runnumber
1073
296
4.706
4.747
19.42
6
4.8
2.72
433
A
1574
43.49 fs
6.098 su.
4.745 K
Total inlet flow
Inlet pressure
Inlet temperature
Single coil
AC
Single triandle
4035
Time
12/10/90
Da
123
Waveform
0
s
Quenchtime
Jg/s]
FLOW
LK-
No
Quench?
24kA
Tm=T1
3 corner
UI
0.5 s
TI=
Tm=
*
T1=
O.5Ss
Im =
27 kA
5.103
.5
10.206
2.000
Bm
Tm
BE/Fm
1/rm
Quench?
16:29
T
s
T/s
Flat top
im/rm
1/s
No
I
,4T1*,4T1*i
TIME (s)
Tm=TI
Wsl
MASSFLAD
MASS FLOW
[g/s]
PamKBoungr
INLET
~
OUTLET
ItMAL
x
11.58
2
3 cable
3 coner ,12.44
4 comer
4 cable
19.47
TEMPERATURE
omr [K]
4.745
4.574
OS[1
-A
AC LOSS P1J
___
0.45
0.38
437
-
-
-
0.39
414
0.43
0.36
0.43
539
443
4.623
5.02
5.14
5.11
5.05
5.086
5.41
0.32
4.803
4.623
4.705
4.75
s
AT
5.15
5.18
_.54.705
1.987
2.76
3.34
2.18
PEAK
Quench time
184
1360
8
851
5180
982
1987
January 1992
US-DPC Test Report
Run number
DM Shotmber
88
124
DM
Bm/m
I/Inn
Waveform
-M
TI=
0.5 s
Im=
30 kA
16:39
Tame
Bm
Tm.
45.79 gls
6.118 atm
4.745 K
Total inlet flow
Inlet pressure
Inletlemperature
Connection Single coil
Mode AC
Description Single triangle
12/10,90
5.670
.5
11.340
2.000
Quench ?
T
Im
s
Fat top
lm/fm
TIs
30 kA
60.00 kA/s
1/s
No
01
TIE (s)
MASS FLOW Wa]
PANCAKE
MMLE
M
-
ounmE
7
DMAL
4..7712
5.29
0.57
2
4.808
5.65
0.84
881.9
2.575
4.622
5.50
0.88
769
3.148
4.71
5.74
2.164
4.742
5.59
1074
4.626
5.36
1.03
0.85
0.73
5.089
5.60
0.51
5
4
20.38
89
Run number
ACLOSS [J)
AT
PEAK
-
13.94
6
7451650.9 -.
Dae
DM Shot number 125
1853
949.8
Inletpressure
lnletteaperature
Ti=
12/10190
a4TIet4T1*i
TIME (s)
IN MAL
m
x
5
6
12.32
19.93
2.03
2.75
3.33
2.15
4.743
OUTLE
PEAK
Im
T
s
Hat top
T/s Tm/Tm
1/s
No
s.
[J]
-
0.49
4.624
0.42
0.45
0.50
0.42
0.60
5.086
5.51
0.42
4.708
4.746
ACLOSS
AT
5.23
5.07
5.21
5.17
5.23
4.806
4.62
4.573
-
16:55
Quench time
5.20
.44.709
5.387
.5
10.774
2.000
[K]
M
-
111.4
2
3 cable
3 comer
4 comer
4cable
Bm
Tm
Bm/Fm
Quench?
Tm=T1
OULET
Tne
0.5s
Im=
n 28.5 kA
RNLET
8851.7
-2023.8
1/Fm
Waveform
MASS FLOW [g/i
1
3324
43.65 zgs
6.074 aum
4.743 K
Total inletflow
Connection Single coil
Mode AC
Description Single triangle
PANCAKE
a
[K]
r
O
11.47
2
3 cable
3 comer
4 comer
4 cable
Quench time
Tm=T
185
1579
1048
S77
471
6540
630
566
2717
1
1
1
28.5 kA
s
57.00 kA/s
US-DPC Test Report
Connection
Mode
x R/S
Bm
0.284 T
an
4.735 K
T'I
Bm/rm
5 S
0.057 T/s
Total inlet flow
Single coil
Inletpressur
AC
6.239
blettinnpUer
Description Singletriangle
10:04
Time
12/11/90
Dde
DM Shot number 204
90
Run number
January 1992
1/rm
hm
Fit top
1.5 kA
s
InnTm
0.30 kA/s
Im
1.5 kA
s
0.30 kA/s
0.200 1/s
WavefomT
ImI..
5Sa
-T1=
Im=
1.5 kA
Quench ?
No
Quench time
_
A
g4T1*g4T1*:
TIME (a)
PA
M
Tm=Tl
MASS FLOW g/sK]
AKE
RLET
OUmLEr I
xX
X
4.748
4.78
4.62
4.67
0.05
0.03
0.04
0.04
0.03
0.05
15.098
41 91.566
5.15
0.05
5
X
6
4.706
4.76
4.808
4.84
4.616
4.66
4.706
4.75
Do
DM Shot number 205
91
Run number
net temperature
Waveform
I7
*0 :
TIME (a)
M
6
X
X
X
4.735
X
x
X
X
X
T1=
5s
Im=
1.5 kA
EMPEAT
otymzr[EK]
T WMAL I
PEAK
Tne
1211j90
Bm
Tm
Bn/Im
ljrm
0.284
5
0.057
0.200
Quench ?
No
Quenchtime
J
ALS
AC LOSS [ J]
AT
x
x
5
X
Tm=T
PNAEMASS
P K FLOW [gs]
I T~ UIIEF
X
X
X
x als
6.287 ann
4.735 K
Total inletflow
Inlet pressure
Canection Single coil
Mode AC
Description Single triangle
3 cable
3 comer
4 coier
4 cable
AT
PEAK
X
X
X
2
3 cable
3 comer
4 comer
4 cable
AC LOSS [J]
oUnLr
DfmiAL
4.566
4.707
4.809
4.618
4.707
4.74
4.83
4.64
4.73
4.75
4.621
4.77
4.65
5.097
5.13
186
0.03
0.02
0.02
0.03
0.02
0.03
0.04
X
X
X
X
X
X
10:19
T
s
T/s
Fiat top
Irm
1/s
s
US-DPC Test Report
Dle
DM Shot number 206
92
Run number
January 1992
Single coil
Mode AC
Description Single riangle
Total inlet flow
Inletpressure
44.2 gxs
6.331 agn
Inlettemperature
4.741 K
Conneion
;
Waveform
T7
T=
T1=
O5.Ss
Im=
29
.5 s
TM
IWe-Im
I/rm
29 kA
T
.
B
kA
10:43
Tkne
12/1 1j90
Flattop
a
rm
58.00 kA/s
Im
Flattop
.5 s
10.962 T/s ImfIm
2.000 1/s
29 kA
10.962 T
2.000 1/s
No
Quench?
A
;*T*:4n'a4
TDME (a)
Tm=T1
1
TEMPERATURE [K]
E
OW [g/s]
PNCAEMASS
11.39
3 cable
3 comer
4.694
5.10
4.709
5.22
0.40
0.51
1.956
4.812
5.25
0.44
583
2.72
4.621
5.09
0.47
476
3.37
2.15
4.71
4.751
5.22
5.18
5.12
5.47
4.623
15.098
Inlet pressure
Inlet temperatre
AC
Mode
Description Single triangle
6351
Time
12/11/90
44.67 g/s
6.287 agn
4.737 K
Totalinleiflow
Single coil
Connection
1059
637
0.51
591
0.43
2430
0.50
0.37 1_
De
DM Shot number 207
93
Run number
1634
-
20.2
Bm
Tm
BmIm
lfrm
Waveform
T=
TI=
Im=
8
ACLOSS [J]
12.61
4 corner
4 cable
5
6
Qacnch im
11:12
5.481 T
05 s
0.5
29 kA
Quench ?
No
I!'
,4T1*,4Tl*:
wU7rm4L
4.685
WN1ET
2
3 cable
3 coier
4 comer
.4.708
2.951
2.698
3.35
12.6
4.737
5
6
15
4.807
4.617
4.706
4.747
2.119
4 cable
AC LOSS [(JJ
EPRTR
_ _one~r(]ALS
PNAEMASS FLOW [g/s]
4
4.619
5.091
PEAK
AT
5.08
5.21
0.40
0.50
5.24
5.08
5.21
5.18
5.16
5.52
0.43
0.46
0.50
187
a
Qaench time
Tm=T1
TIME (a)
0.43
0.54
0.43
1639
874.6
467.3
632.3
575.5
1341.9
6782.7
1207.8
2594
s
58.00 kA/s
January 1992
US-DPC Test Report
Run number
94
DMShotnumber
Dlte
208
Tune
Inlettemperatue
11:33
5.670 T
1 s
5.670 T/s
Bm
41.685 g/s
5.452 atm
4.737 K
Totalinid flow
Inlet pressure
Connection Single coil
Mode AC
Description Single triange
121l1i90
Bnlrm
lrm
hm
Fattop
lm/rm
30 kA
s
30.00 kA/s
1.000 1/s
Waveform
Im=
Yes- Coil C crossover tum.
Quench ?
30 kA
Quench detection sequence
Quench sequence?
VB#34,56
A,
4TIOfET1*'
TIME (a)
Quench time
Tm=T1
MASS FLOW [g[K]
MSNOAK-oEt
=INLET
OTEr
5.24
AT
0.55
4.704
4.805
5.52
0.82
5.78
0.98
929.8
4.618
4.708
4.752
5.63
6.35
6.10
1.01
1.64
1.35
1043
4.618
P478
.545.092
6.82
6.38
2.20
IIA,
13.3044.691
2
-
1.993
3 cable
3 comer
4 corer
13.595
4.564
6
_
Run number
Connection
Mode
Description
95
4.737
2.698
3.207
2.526
14.786
ACLOSS [J
-
N
PEAK
3468
1972.8
16255.8
1954
3
1526
7335
1.28
Daft
DM Shot number 209
Inlet temperature
Tame
12/11,90
40.49 g/s
5.452 asr
4.741 K
Total inletflow
Inletpressure
Singlecoil
AC
Single triangle
s
0.9
11:45
5.481 T
1 s
5.481 T/s
1.000 /s
Bm
Tm
Ban/rm
l/fm
Im
Flat top
li/Tm
29 kA
s
29.00 kA/s
Waveform
Im=
29 kA
Yes. Coil C crossover turn and other
part.
Quench detection sequence
Quench?
Quench sequence?
VB#34,56
0111
4eT1*w4Tl*,
TIME (a)
Tm=T1
MASS FLOW [Ws]
1
-
2
3 cable
3 comer
4 comer
4 cable
5
6
INLET
12.408
13.685
1 4 .397
-
OUTIET
EMPERA
TINAL
2.007
2.735
3.226
2.529
4. 8
T
PEAK
Quenchtime
ACLOSS (J
-
AT
4.695
5.22
0.52
4.708
4.807
5.49
5.75
0.78
0.94
902.7
4.621
4.708
4.752
5.61
6.33
6.08
0.99
1028
1.62
1.32
1902
1470
4.623
6.75
6.3 8
2.13
1.2 8
5 .097
188
0.93
3102
15038.7
3372
6634
s
US-DPC Test Report
Run number
January 1992
AC
Mode
Description Singletriangle
Waveform
Tine
12/11)90
43.53 ols
6.239
4.733 K
Totalinletflow
Inlet pressure
Inlettemperature
Single coil
Connection
Dae
DM Shot number 210
96
Bra
5.481 T
M
.5 s
10.962 T/s
'
Bin/'n
1/fm
TI=
0.55
Tm=
29kA
13:20
Im
top
m/Fm
29 kA
s
58.00 kA/s
2.000 1/s
No
Quench?
A
C
TIME (s)
PANCAKE
Tm=TI
MASS FLOW Wa]
I OUTIE
-
Quenchtime
AC LOSS [1J
-K
wmAL
AT
PEAK
1
4.677
5.08
0.40
2
4.692
5.20
0.51
2.01
4.8
5.25
2.73
4.629
5.09
0.45
0.46
_1
cable
3 comer
cable
-
12.64
3.36
4.703
2.15
-
20.55
6
Run number
DMShotnumber
97
5.23
4.746
4.616
5.19
.09
5.52
0.53
0.44
0.63
0.43
5.25
De
211
1662
595
1075
480
6791
1
647
1234
587
2820
Tune
12/1190
42.88 ats
6.287 um
4.733 K
Totalinletflow
Inlet pressure
Inlettemperaure
Connection Single coil
Mode AC
Description Singletrapezoid
s
Bmdrm
l/rm
2.268
.5
4.536
2.000
Quench ?
No
Bm
'n
13:32
T
s
T/s
Im
Flat top
ITmn
1/s
Wavefonn
T2=
S.=
Im=
14T1*4---*-
4
T1*I
TIME (a)
Tm=T1
INLET
2
3 cable
3 corner
4 comer
4 cable
5
6
OUTLET
I
I
1.86
2.67
3.34
2.13
33
AT
4.689
4.801
4.617
4.704
4.748
4.86
0.17
4.94
4.76
4.86
4.88
4.618
4.78
5.23
0.13
0.15
0.16
0.13
0.16
0.14T
561
95
189
s
ACLOSS [J]
PEAK
4.82
AL
4.675
10.28
12.6
Quenchtime
o'MLT
MASS FLOW [g/s]
1
3.5s
3s
29 kA
0.15
480
112.9
142
254.9
189
122.3
311.3
1730.2
684
12 kA
3 s
24.00 kA/s
January 1992
US-DPC Test Report
Waveform
Inlet temperstur
T=
T1=
rn
3s
1.895
2.73
12.61
[J
ILET
4.735
2.11
0
4.566
-
6
WNAL
AT
0.25
PWAK
4.691
4.90
4.97
4.802
4.619
4.707
4.75
5.03
4.86
4.96
-3.36
4.97
4.621
4.88
5.094
5.30
0.22
0.24
205
244
449
0.25
320
214
534
TI=
12=
I m=
--
2887
1109
0.5s
3 s
24 kA
4.536 T
.5 s
Bm
TM
42.555 g/s
5.47 am
4.737 K
13:57
Tune
12/1190
Da
Waveform
795
0.22
0.26
0.21
Total inletflow
Inlet pressure
Inlettemperature
Connection Single coil
Mode AC
Description Singletrapezoid
-
0.28
DM Shot number 213
99
Run number
s
S[
A
10.24
3 cable
3 comer
4 corner
4 cable
36.00 kA/
No
Quenchtime
-URE
1.44.655
1
2
Quench ?
Tm=T1
MASS FLOW [g/s]
1NLnlr OUILS
RNEF oUTEr
PANCAKE
m/Tm
18 kA
yOren"
TIME (s)
18 kA
3 s
05 s
0.5
Tm=
----
fm
Flat top
6.804 Ts
2.000 1/s
Br/Tm
1/Tm
4.735 K
S..2=
F*nes
3.402'T
.5 s
Bm
Tm
42.85 M/s
m
6.355
Total inlet flow
mIet pressure
Connection Single coil
Mode AC
Description Single traezoid
13:45
Tme
12/11/90
Dalf
DM Shotnmnber 212
98
Run number
Tm
9.072 /s
2.0001/fs
B/rm
1/Tm
Quench ?
Yes-
T
i-
--------
-
Quench detection sequence
IdTl
TEMPERATURE [K]
MASS FLOW [g/a]
A INE
OUTLT
oTM
n r
INLEI
2.242
12.764
42.764
4 ;Tbll
20.117
6
t OrL
PEAK
0.45
4.691
4774.803
4.62
5.28
5.30
5.14
0.52
4.709
4.75
5.27
5.24
0.56
.612
r_5.094
5.50
4
190
AC LOSS [ J]
-
0.59
0.50
3.229
2.391
a
-
AT
5.13
4.679
9.674
2
3 cable
3 comer
Quenchtime
Tm=T1
TIME (3)
0.49
-
0.40
1685
659.3
555.5
124.
60588.6
677.4
734.4
56277
48.00 kA/s
Quench information ?
Quench sequence ?
VB34,56
0
24 kA
3 s
Tm
Flat top
US-DPC Test Report
Run number
100
January 1992
DM Shot number 222
Dt
Waveform
Tm
42.62 /s
6.239 son
4.735 K
Totalinletflow
Inletpressure
Inlettemperature
Single coil
Mode AC
Description Singletrapesoid
Connecion
0.5 s
3s
T1=
. . .r2=
Im=
TIME (a)
mmLE
otmr'~ INIT
AL
1
4.666
PEAK
4.95
2
4.685
5.04
4.801
4.617
4.703
4.751
5.09
4.92
5.03
5.02
14.619
5.093
____
3 cable
3 comer
4 comer
4 cable
2
2.75
3.39
2.19
12.65
5
2
6
20.2
----------
4.563
101
Runnumber
4.735
Quench ?
-
(s)
INLET
OUE
D
0.28
0.35
1026
622
412
290
702
4.94
0.33
0.27
0.32
5.35
0.26
3785
1435
T
12/11j90
42.25 R/s
Bm
6.331 an
4.73 K
Tm
Bn/rm
1
2
3 cable
3 comer
4 comer
4 cable
12.55
1.888
2.68
3.31
2.14
4.73
5
6
20_
TI=
Sa
1
Im=
15kA
3=s
4.5
AL
4.67
4.682
PEAK
4.81
4.85
4.797
4.613
4.702
4.747
4.94
4.76
4.86
4.88
4.615
15.094
4.78
5.24
N
s
Quench ?
14:25
2.835
5
0.567
0.200
s
T/s
s,
191
AT
476
119.1
151.7
270.8
0.16
0.13
0.17
199.6
127.3
326.9
0.14
1786.7
713
Im/rm
No
0.14
0.14
0.15
Flat top
1/s
Quench time
0.17
Im
T
[K]
TM
42.00 kA/s
ACLOSS [_J]
AT
Tm=T1
MASS FLOW [g/s]
PANCAKEflrALSS[J
Tm/Tm
21 kA
3 s
No
1/nn
Tm
Hat top
7.938 Ts
Quench time
Dae
Wavefonn
Im
3.969 T
.5 s
2.000 1/s
1/m
307
315
Total inlet flow
Inlet pressure
Inlet temperature
Mode AC
Description Single trapezoid
'T
Th//n
0.28
0.30
DM Shotnumber 223
Single coil
Connection
Bem
14:17
[K]
RCOS
OL
-
UET
Time
21kA
Tm=T1
MASS FLOW [g/s]
PANCAKE
12/11I90
15 kA
3 s
3.00 kA/s
January 1992
US-DPC Test Report
DM Shot number 214
102
Run number
42.25 gs
6.355 arm
4.73 K
Total inletnflow
Inlet pressure
Single coil
Mode AC
Description Single trapezoid
Connection
Inlettemprature
Tm
T1=
T2 =
-
2s
3s
Im=
TM
Bmlrm
0
1*T1 10
---
4.672
4.681
4.798
-
0.15
0.18
0.14
-
121.6
-
2.7
4.614
4.77
0.15
156.9
3.36
2.12
4.703
4.748
4.616
5.095
4.87
4.89
0.17
4.79
0.17
5.24
0.15
M
4.73
5
6
4
2
Run number
103
209
Inlettemperature
339.2
729
Tue
12/11)90
Bm
Tm
42.54 Als
6.355 atm
4.733 K
Total inletflow
Inlet pressure
BTMnm
P*T10041---T2---TIME (s)
TVM TUR
1
4comer
5
6
3s
15kA
Quench ?
Tm=T1
1NLEr ouIm
E-r
12.65
2.835 T
1.5 s
1.890 T/s
0.667 1/s
No
M
MASS FLOW [gs]
1.905
2.71
3.37
2.14
14:50
1.5s
TI=
T2=
nIm=
Im .-
a
1837.7
130.2
Dae
Waveform
3
s
278.5
l/rm
2
3 cable
7.50 kA/s
491
0.14
DM Shot number 215
connection Single coil
Mode AC
Description Single trapezoid
PA AKE
1m/rm
ACLOSS [J]
AT
1.885
4 comer
4 cable
INMLAL
OUTEr
PEAK
4.82
4.86
4.94
-
5UTET
9
12.56
K
TIORTR
1
3 cable
15 kA
1/a
Quench time
Tm=T1
MASS FLOW [gs]
INLT
Im
Hattop
la.T14"
T2
TIME (s)
PACKE
s
TIs
No
Quench7
15 kA
T
2.835
2
1.418
0.500
Bim
1/rm
Waveform
14:37
Turm
12/11j90
Dae
4.733
INITAL
4.669
4.681
4.798
4.615
4.703
4.747
4.616
5.092
Quenchtime
[K]
oULEr
PEAK
4.52
4.86
4.95
4.76
4.87
4.89
4.79
5.24
192
AC LOSS (J]
&T
-
516
0.18
0.15
0.17
126.9
162.3
213
0.14
134
0.15
0.18
0.15
289.2
1903.2
347
751
Tm
Flat top
Im/rm
15 kA
3 s
10.00 kA/s
US-DPC Test Report
DM Sbot number 216
104
Run number
January 1992
Dalf
Wavefom.
6.355
2.835 T
1s
2.835 T/s
1.000 1/s
Bm
Tm
Bm/Tm
1/Tm
42.31 z/s
Total inlet flow
Inletpressure
Inlettemperalure
Connecdon Single coil
Mode AC
Description Singletrapezoid
am
4.73 K
Quench?
im=
MASS FLOW
MASS FLOW
OUTE
NLT
[s]]
1
2
9.7
1.9
3 cable
4.73
12.58
3 comer
4 corner
4cable
20
6
2_
105
Run number
0.16
0.20
4.87
4.95
4.613
4.80
0.19
5.25
0.16
Da
Inlet temperature
TI=
12/11190
15:47
Tne
2.835
.75
3.780
1.333
Bm
Tm
Bn/Tm
1/Tm
T
s
T/s
i/s
Tm
Flat top
Im/Trm
0.75 s
1=
3
Quench?
No
15kA
*9ie
I4T1*qE--T2--yT
TIME (s)
MASS FLOW [Ig/s]
PANCAK
OUTLET
B
Tm=T1
Quenchtime
ACLOSS
INET
INRFLAL
4.668
4.84
4.68
4.798
4.89
0.21
4.96
2.69
4.612
4.79
3.35
2.13
4.702
4.745
4.89
4.91
4.81
0.16
0.18
0.19
0.19
5.25
0.16
9.86
1.878
3 comer
4 comer
4 cable
4.73
4.558
4.614
5.09
PEAK
193
s
L]
UUTmUR
T
AT
0.17
2
3 cable
6
1994.5
781
42.73 gFs
6.403 sun
4.73 K
Total inlet flow
Inlet pressure
--
20.2
3
5.09
Im=
5
169
225.8
141.9
4.557
Waveform
1
302.8
4.557
Single coil
Mode AC
Description Single trapezoid
INLET
133.8
0.17
0.18
0.15
DM Shot number 217
543
0.16
4.78
4.88
4.90
Connection
IM
AC LOSS [J]
4.61
4.701
4.744
3.37
2.13
s
AT
PEAK
4.83
4.665
4.678
4.796
in/Tm
No
Quench time
-oUnTEr
NAL
Flattop
15 kA
3 s
15.00 kA/s
15kA
Tm=T1
NLET
Im
Is
T1=
TIME (s)
15:35
Time
12/11/90
0.16
J
578
139.9
177
316.9
234
394.2
2101.1
150.2
822
15 kA
3 s
20.00 kA/s
January 1992
US-DPC Test Report
Doe
DM Shotnumber 218
106
Run number
6.287
atn
BmIm
4.728 K
I/rm
Waveform
TI=
7T=
Im=
0.5s
3s
15:58
2.835
.5
5.670
2.000
Bm
TM
42.68 g/s
Total inletflow
Inletpressure
Inlet tempeature
Connection Single coil
Mode AC
Description Single trapezoid
Tne
12/11j90
Quench ?
Im
T
s
Ts
Flattop
ImiTm
15 kA
3 s
30.00 kA/s
1/s
No
15kA
i
sTI
2--sP;QT1
--
TIME (S)
Tm=T1
(K]
U
OUTLET
MASS ROW [g/s]
PA AKE
NLET
OUiLET
INIE
1
2
9.83
3 cable
3 comer
12.65
1.879
2.69
4.728
Quench time
ACLOSS [J]
4.659
PEAK
4.85
AT
0.19
4.679
4.90
0.22
4.796
4.611
4.97
4.80
0.18
0.19
153.5
0.20
250
AL
4 comer
3.35
4.7
4.90
4 cable
2.13
4.743
4.91
4.613
4.82
0.21
4._ 75.086
5.26
0.17
20.2
6
2
_.
107
Run number
_
Dft
Waveform
2255.8
411.2
161.2
877
1
__1
Tune
12/1190
16:11
2.835 T
.3 s
9.450 T/s
3.333 1/s
Bm
Tm
Bm/rm
l/rm
Im
Flat top
InVmn
0.3s
TI=
?
3Quench
15 kA
=
In=
ST2
342.6
189.1
42.52 es
6.311 asm
4.728 K
Total inletflow
Inlet presure
Inlet temperature
Single coil
Mode AC
Description Sinale trapezoid
625
0.17
DM Shot number 219
Connection
s
No
0
TIME (s)
PAAKE
MASS FLOW [g/s]
MTOLT
INLET OU1ET
Tm=Tl
(K]
T
"
ACLOSS (J]
PEAK
4.87
AT
1
INMAL
4.664
2
4.678
4.93
0.25
4.795
4.609
4.699
4.742
5.00
4.82
4.93
4.94
4.611
4.84
0.20
0.22
0.23
0.20
0.23
5.089
5.28
0.19
3 cable
3 comer
4 comer
4 cable
5
6
1.9
4
20.1
4.728
2.71
3.36
2.15
4.553
194
S
Quenchtime
0.21
708
178.2
216
282
188.8
394.2
2944
470.8
971
15 kA
3 s
50.00 kA/s
US-DPC Test Report
Run number
January 1992
Daft
DM Shot number 224
108
Conecion
Single coil
Mode
Description
AC
Sin& etrapezoid
Waveform
M
TI=
1.53
T2 =
Tm=
3s
20kA
TIRMTR
5I T~ oUTLm
9.234.665
3 comer
4 comer
-NEA
12-
1.926
12.49
4 cable
109
4.728
0.24
4.679
4.97
0.29
5.02
0.22
203
4.85
0.24
262
3.44
4.7
4.96
0.26
2.18
4.743
4.96
0.22
345
4.612
4.88
0.27
5.33
0.24
Dae
DM Shot number 225
T7=
55
3s
Im=
20 kA
T1=
MASS FLOW [g/s]
OUTLBT'
E
NAL
4.667
1
_____4.68
12.57
5
20.2
6
20.2
1.879
2.71
3.37
2.11
2951
564
219
1153
4.73
4.798
4.612
4.701
4.745
4.614
5.091
PEAK
Bn/I'm
1/'m
3.780
5
0.756
0.200
Quench ?
No
Bm
Tm
16:36
T
s
T/s
1/s
ACLOSS [J]
0.18
4.90
0.22
4.97
4.80
4.90
4.92
4.83
5.27
0.18
0.19
0.20
0.17
0.21
0.18
615
155
356
201
2331.6
268
165.6
433.6
927
Im
Flat top
Im/rim
s
AT
4.84
195
Time
12/1190
[K]
-
s
Quench tim
Tm=T1
TIME (s)
time
465
42.54 jfs
6.331 atm
4.73 K
Total inlet flow
Inlet pressure
Inlet temperature
I
3 cable
3 comer
4 comer
4 cable
No
769
4.611
Waveform
2
3 s
13.33 kA/s
AT
4.796
Connection Single coil
Mode AC
Description Single Urpezoid
INLET
m/In
COSP
K
PEAK
4.91
15.09
Run number
Quench
2.77
5
6
Hat top
20 kA
lT__
PNAEMASS IFLOW M[g/s]
3 cable
Quench?
Irn
T
1.5 s
2.520 TIs
0.667 Its
Tm
Bm/rm
Tm= T1
TWMB (s)
9
16:23
3.780
1/rm
4TI lop--2---o
2
Bm
41.35 ats
6.331 sun
4.728 K
Total inlet flow
Inlet pressure
Inretamperatum
Tune
12/11U90
20 kA
3 s
4.00 kA/s
January 1992
US-DPC Test Report
DM Shot number 220
110
Run number
Dole
ToW inkt flow
Inlet pressure
1nlettempature
Connection Single coil
Mode AC
Description Singletrapezoid
T1=
=
" -
3
20 kA
MASS FLOW [g/]
INLET
OUTLET
E
_'__
1.879
3 cable
3
comer
--
12.57
2.71
6
Run number
4.737
3.37
2.11
4 comer
4 cable
5
4.558
4
20.2
20.
Im
s
Flat top
nQT/m
TIs
20 kA
3 a
10.00 kA/s
1/s
No
NTITAL
AT
4.666
4.681
4.86
4.92
0.19
4.799
4.99
0.19
-
-
-
4.82
4.701
4.746
4.615
5.091
4.92
4.93
4.84
5.27
0.21
0.22
0.19
0.23
0.18
Dde
TIME (s)
Tm=T1
MMT
LET
9.84
2
1.895
12.63
4 comer
4 cable
6 __________5.087
215
2508
286
179
988
Thne
12111190
Bm
Tm
Bm/rm
4.729
IiAL
ounzr
PEAK
TIs
4.796
5.02
4.612
4.85
3.38
2.14
4.701
4.744
4.96
4.96
0.22
0.24
0.25
0.21
s
4.613
4.87
0.26
0.21
779
198
442
244
-
533
323
210
1096
Im/m
No
AC LOSS [ J]
0.22
0.27
fi
Flat top
1/s
AT
4.88
4.95
196
T
s
AMCOLOS
4.66
4.68
5.29
16:58
Quenchtime
2.71
4.558
3.780
1
3.780
1.000
Quench ?
[K]
MASS FLOW [g/s]
3 cable
383
-
42.57 ds
6.287 aim
4.728 K
is
3s
20 kA
T1=
2=
Im=
OUT
168
l/Tm
WavefomI
INLET
672
0.24
-
4.614
s
ACLOSS (J]
oUTnr
PEAK
Total inlet flow
Inlet pressure
Inlettemperature
Single coil
Mode AC
Description Single trapezoid
20.1
Quenchtime
DM Shot number 221
111
Connection
3 comer
Quench 7
Tm=T1
9.77
2
BmIrm
T
p
TIME (a)
1
3.780
2
1.890
0.500
Bm
Tm
16:46
2s
Im =
PA
42.54 als
6.331 sin
4.73 K
l/rm
Waveform
0
Taie
12/1190
2850
20 kA
3 s
20.00 kA/s
US-DPC Test Report
Run number
January 1992
DM Shot number 256
112
Dwe
Inletpressure
Inettemperature
Mode AC
Description Singletriangle
'In
Bulfrm
mi.
j4T10i4T1*
TIME (s)
MASS
PANCAK
MASS
58
Im=
1.5 kA
OUTLEr
'NLET
Quench time
PEAK
AT
4.68
0.00
s
31
ALS
TEMPERATURE [K]
jrjML
No
Quench ?
Tm=T1
FLOW
Ws]
OW [g/sltTACLOS
INLET
MITCAKE
T1=
1.5 kA
0 s
0.30 kA/s
0.200 1/s
/rm.
Waveform
9:57
im.
0.284 T
Flattop
5 s
0.057 TIs ImI'm
Bm
X u/s
6.142 am
4.728 K
Total iniKt flow
Camion Single coil
Time
12/120
4.662
2
_4.681
___
X
-
cable
3comner
X
x
4 comner
X
4cable
x
4.728
X
X
4.801
4.61
--
X
4.702
4.747
0.03
4.74
___
X
x
x
4.614
6
5.1
Run number
DM Shot number 257De
113
12/1290
Bm
Tm
Bm/rm
X Rts
6.166 asn
4.728 K
Total inlet flow
Inletpressure
Connection Single coil
Mode AC
Description Single triangle
Inlettemperatue
Tne
1/rm
10:07
0.284 T
5 s
0.057 TIs
0.200 1/s
Tm
Flattop
lmdrm
Wavefonn
-
-
i4Tl"r4TIOi
TIME (s)
IET
ouLEr
-
INLEI'
2
4 comer
4 cable
5
6
1.5 kA
Quench ?
AC LOSS
I
InrAL
Ounmzr
X
X
4.728
4.702
4.746
-
4.613
AT
PEAK
X
X
X
4.61
15.095
0.03
4.73
X
x
X
1
1
197
s
[[K
AC LOSS [1J
4.801
X
X
X
No
Quench time
4.66
4.68
1
3 cable
3 comer
Ss
Im=
Tm=Tl
MASS FLOW [g/s]
PANCKE
TI=
1.5 kA
0 S
0.30 kA/s
US-DPC Test Report
Inlet temperasu
Singlelrapezoid
Description
Waveform
Im
Rat top
Imm
5.040
Bivfm
4.724 K
10:17
3.780 T
.75 s
Bm
T*IM
44.04 its
6.190
Total inlet flow
Inlet pressure
Connection Single coil
Mode AC
Tme
12/12#90
Dalf
DM Shot nunber 258
114
Runnumber
January 1992
1.333 1/s
1/rm
20 kA
3 s
26.67
Ws
T1= 0.75s
Quench?
Im=
No
20OkA
U0 V-----MASS FLOW [g/s]
INLET
1
-
INEP
OUTLET
10.13
2
_
.13
oleTU
r
ACLOSS (J]
DINAL
4.667
PEAK
4.91
AT
0.24
4.68
4.98
0.30
875
3 cable
2.23
4.724
4.801
5.04
0.24
264
3 corner
-- 4 comer
3.1
7
4.612
4.86
-------
0.25
306
4.98
0.27
369
13.01
34.702
2.52
4 cable
5 20.94.54
20.9
6
Run number
115
4.748
4.98
0.23
4.613
4.89
5.101
5.32
0.27
0.22
DMShotrnumber 259
DaLf
Inletltemperature
Waveform
T1=
--
I
I4T1*,-12-TIME (s)
PANCAK!
-
1
2
3 cable
3 comer
4 comer
4 cable
T2=
3s
Im=
2D kA
1/rm
Quench ?
Im
3.780 T
Flat top
.5 s
m/Pm
7.560 s
2.000 1/s
No
Quench time
Tm=T1
-
TEMPERATURE [K]
r
PEAK
r .,AL I
4.94
5.01
0.32
4.801
5.07
4.90
5.01
0.27
0.28
0.30
0.26
0.30
0.24 1
04L
4.73
3.15
3.6
2.53
4.615
4.702
4.748
4.558
4.618
5.099
5.01
4.92
5.34
198
s
LOSS [iJ]
-AC
4.691
20.9
Bm
Tm
Bmn/m
10:28
0.5s
4.669
2.27
Time
12/1290
-1-
56
1226
10.14
13.05
3314
-
643
274
AT
0.27
OUTLET
?
4TO
MASS FLOW [g/s]
INLET
570
44.09 a/s
6.190 sun
4.73 K
Total inlet flow
lnletpressure
Connection Single coil
Mode AC
Description Single trapezoid
s
Quenchtime
Tm=TI
TIME (s)
979
644
312
332
3678
405
310
715
1340
20 kA
3 s
40.00
cA/s
January 1992
US-DPC Test Report
Dole
DM Shotnunber 260
116
Run number
Inletpressure
Inrettemperanle
Waveform
TI=
T7=
Im =
OUTLET
E
1
210.1
3 cable
3 comer
13.07
l/m
2.38
3.17
4.73
3s
20OkA
IAL
4.668
4.682
4.801
4.616
PKm
AT_
4.98
5.07
0.31
0.39
5.12
4.95
0.31
0.33
400
391
0.36
472
4 cable
2.59
4.75
5.05
4.617
5.099
5.37
0.30
0.35
0.27
389
4.96
117
DM Shot number X
Waveform
I
--
-i---
n
1
2
3 cable ---3comer
4 comer
4cable
X
--
X
_
X
791
4383
TIme
12/12/90
Bm
TM
Bm/ m
l1rm
4.725
6
0.788
0.167
Quench ?
No
10:50
T
s
T/s
Im
Flat top
IhiTm
1/s
6s
T2=
3s
Im=
25IkA
I
-
TEM RATUR
(K][
PANCKACLOSS
rIAL
PEAK
AT
E
X
X
X
4.728----
[J1
X
X
X
X
X
X
X
X
X
X
X
4.557
x
T__
-X
199
s
Quenchtime
Tn=TI
TIME (s)
MASS FLOW [g/s
INLEF OUTLET
s
1571
X ?is
6.166 atm
4.728 K
TI=
--
6
Dea
Total inletflow
Inlet pressure
Inlettemperature
Connection Single coil
Mode AC
Description Single trapezoid
C,
No
1160
5.06
Run number
66.67
AC LOSS (J
4.703
20.9
Imfrm
Quenchtine
3.6
6
Flattop
20 kA
3 s
3.333 1/s
Quench ?
4 comer
5
120
m
0.3s
Tr
MASS FLOW [gs]
INLET
Bimr
Tm=T1
TIME (s)
10:39
3.780 T
.3 s
Bun
TM
44.07 xfs
6.190 sun
4.73 K
Total inlet flow
Connection Single coil
Mode AC
Description Single trapezoid
Tune
12/I1290
25 kA
3 s
4.17 kA/s
US-DPC Test Report
Run number
118
January 1992
DM Shot number 261
Dalf
4.725
6
0.788
0.167
1/rIm.
Wavefonn
T1=
T=
--
Im=
0
Thne
Bm
Tn
Bm/m
43.74 gFs
6.166 si
4.73 K
TOtalinletflow
Inlet pressurx
Inlettemperature
Connection Single coil
Mode AC
Description Single trapezoid
12112190
10:58
T
Im
s
Flattop
Tm/Im
T/s
1/s
6s
3s
Quench
?
No
25 kA
p
g*T
*I,--T2---04T14"
TIME (s)
INLET
OUTlE
L
1
2
10.04
3 cable
2.24
4.73
----
3 comer
-- -
3.14
12.8
4 comer
4cable
20.9
4.89
4.671
4.95
4.801
5.01
-
AC LOSS (J]
-OT
0.21
0.27
4.87
0.21
0.23
0.24
0.21
0.26
5.31
0.21
-
4.84
-5-
4.95
4.96
4.615
5.098
DM Shot number 262
Dft
785
228
516
-
288
246
595
'
1159
12/12190
Tne
Bm
Tm
Bm/Tm
1/rm
Waveform
771=
3s
3s
Im=
25kA
T1=
I
3055
349
43.74 ils
Total inlet flow
6.166 ann
Inlet pressure
Inlet tWIperare - 4.733 K
Connection Single coil
Mode AC
Description Single trapezoid
s
AT
PEAK
4.68
4.704
4.56
119
D1IAL
-
6
Run number
(K]
r
4.615
3.56
2.4.748
Quench time
Tm=Tl
TM
MASS FLOW [g/s]
PANCAKE
Quench ?
11:09
4.725 T
3 s
1.575 Ts
0.333 1/s
Im
Flat top
Im/I'm
No
0
*TI
T7-2----
T1 On
TIME (s)
MRATURE [K]
OUTlE
flIAL
4.669
10.04
1
------
INLET
2.24
r
4 comer
3.1412.8
20.9
Quench time
Tm=TI
MASS FLOW g/s]
PANCAKE
2
3 cable
25 kA
33 s
4.17 kA/s
4.684
4.7334.803
4.3
3.14
OUnzr
PEAK
4.90
4.97
5.04
ACLOSS (J]
AT
0.23
0.29
836
0.23
246
0.25
306
552
-5--2
4.618
4.87
3.56
4.707
4.97
2.53
4.75
4.98
4.619
4.89
5.32
4.561
s
5-099
200
0.27
0.23
0.27
.
369
264
3247
.
'
1226
633
25 kA
3 s
8.33 kA/s
January 1992
US-DPC Test Report
Connection
Mode
Description
DM Shot number
120
Run number
De
277
43.96 aa
6.142 on
Total inlet flow
Inletpressire
Single coil
AC
4.725 T
2 s
Bm
Tin
BT/rm
4.732 K
Inlettemperature
Single travezoid
EPRT
10.01
2.25
3 comer
4 comer
3.14
13.05
2'4.732
_
4 cable
4.92
4.681
4.801-5--1-
5.00
0.25
0.31
5.05
0.25
266
4.615
4.88
0.27
325
4.75
5.00
4.99
392
284
4.617
5.095--
4.91
5.33
0.29
0.24
0.29
0-O.24
4.705
4.558
20.9
6L___
___
DM Shot number 274
121
901
591
3463
7
1295
x 9/s
Bm
Tm
Bn/frm
5.178 atn
4.732 K
1/rm
Waveform
T1=
T2=
Im=
n .
11:31
Time
12/1290
DM
Total inletflow
Inletpressure
Inlet temperanure
Connection Single coil
Mode AC
Description Single trapezoid
4.725
1.5
3.150
0.667
T
s
T/s
1/s
1.5s
3 sQuench
?
Yes- Coil C crossover turn.
25kA
Quench detection sequence
Quench sequence?
MC03, VBS-6, VB3-4, MCO1
II
P*TI 10---2--a"OTIO"
TIME (s)
PANCAKE
INLEr
-
OUTIEr
2
x
4 comer
cable
X
X
EMPERATURE [K]
or~
IMAL
x
3 cable
Quench time
Tm=T1
s]
MASSROW [g/s]
MASS FLOW
4
4
6
25 kA
3 s
16.67 kA/s
_AL
4.663
-3-6-
3.57
2.54
Run number
ACLOSS [J]
AT
PHAK
2
3 cable
E[K
OULAr
AK
OUTE
IN__
Quench time
Tm=T1
MASS FLOW [g/s]
PANCKE
0
Im
Hattop
irm/Fm
No
25 kA
-2---I4T11
TIME (s)
1
Fattop
0.500 1/S
Quench ?
*T1
m/Irm
25 kA
3 s
12.50 kA/s
2s
T1=
hri=
IM
2.363 TIs
/rm
Waveform
11:21
Tme
12/12190
4.669
4.682
5.33
0.48
0.65
4.8
5.40
5.24
5.49
5.41
6.50
0.60
0.63
0.79
0.66
1.88
6.30
1.18
4.615
4.748
4.555
X
4.555
CLS
4.618
5.116
201
J
ACLOSS [J]
AT
PEAK
5.15
4.703
Xx
OULrr
1.58
x
X
X
X
X
X
s
US-DPC Test Report
Run number
122
January 1992
DM Shot number 275
De
43.58 gfs
6.142 on
4.733 K
Total inlet flow
Single coil
Mode AC
Description Singletrapezoid
Cmnecion
Inletpressire
1nlettemprature
Waveform
12112)90
T1= 1.75s
T2=
3s
Im= 25kA
i.n
TIME (s)
I
13.03
4 cable
WMAL
4.674
4.94
4.688
5.01
2.24
4.806
5.07
3.14
3.56
2.54
4.62
4.709
4.755
4.622
4.90
5.01
5.01
4.93
5.35
5
.5.104
Run number
123
Flattop
1.75 s
m/Tm
us
2.700 T
0.571 1/s
Tm
Bm/rm
l/fn
No
ACLOSS (J]
0.32
0.26
286
0.28
345
0.30
0.25
412
303
953
!61
3669
715
1370
0.30
0.25
Ddc
12/120
InettmperatUre
Thme
Bm
TM
Bi/Tm
40.472 afs
6.142 am
4.741 K
Total inletflow
Inlet pressure
Connection Single coil
Mode AC
Description Slow-ramp trapezoid
1/M
Waveform
T1=
2=
7
T3=
a
I
I
I
I
I
I
0
oUtLTEr
I
Quench ?
T
otrn.LT
1
5.06
AT
0.40
2
4.688
5.19
0.50
2.505
3.276
4.7414.807
4.624
5.22
5.06
0.41
0.44
3.689
4.713
5.19
0.47
558.58
662.2
4.758
5.15
0.40
542.6
4.625
5.07
5.46
0.45
3 coiner
4 coner
4 cable
19.79
fin
Flat top
Inm
No
ACLOSS (J)
rTAL
4.664
3 cable
5.670 T
11 s
0.515 T/s
0.091 1/s
Quench time
Tm=TI
MASS FLOW g/sK]
INLET
11 s
3s
0.5s
13:19
3
TIME (s)
PANCKE
25 kA
3 s
14.29 kA/s
AT
0.26
PEAK
DM Shot number 276
S, - - - - - - - -
m
T
(K
1
3 comer
4 comer
11:43
Quenchtime
OUTIEr
T 5UTEF
2
3 cable
4.725
Bm
Quench 7
Tm=TI
MASSTEMPERATURE
PACKE
Tne
4.571
~--5.1
PEAK
202
1327
521.5
1080
12_4.8
1958
s
30 kA
3 s
2.73 kA/s
US-DPC Test Report
Runnumber
Connection
Mode
Desripion
January 1992
DM Shot number
124
Doe
283
Single coil
Totalinld flow
39.085 RIs
Inlet pressure
6.166 agn
4.741 K
AC
Indettemperaue
Slow-ramp travezoid
Waveform
T1=
172=
3=
h
S
0
I
I
*
I
I
I
I
I
I
2
3 cable
3 onr
4 comer
4 cable
INLET
7.615
OUTLET
Run number
Cannection
125
4.568
INIAL
Mode AC
Description Single trapezoid
8 s
0.709 T s
0.125 1/s
PEK
-mA.
PEAK
s
______
0.40
0.51
4.81
4.625
4.714
4.76
4.625
5.22
5.07
5.20
0.41
0.44
0.48
555.7
580.2
682.8
5.17
0.41
0.46
573.9
5.09
5.106
5.47
0.36 ___
-
'
1244
1135.9
5591.6
1
_2_6.7
1955
12/1290
D
Total inlet flow
37.518 gs
Bm.
Inlet pressure
Inlet temperature
5.251 agn
4.743 K
Tm
Bm/Tm
1/rm
T1=
T2 =
6s
3s
Im=
30 kA
13:42
Tme
Quench?
Im
5.670 T
Flat top
6s
0.945 T/s Im/Im
0.167 1/s
T1*
Tm=T1
1
-
p
3 corner
4 comer
11.715
18.933
otmnr
PEAK
4.69
5.27
5.52
AT
0.59
0.83
4.814
5.65
0.84
1214
3.422
3.814
4.625
4.718
5.50
5.83
0.88
1256
3.089
4.762
5.70
7.26
6.68
0.94
2.63
4.679
2.779
4 cable
5
6
LTOUTLET
M
AL
6.87
2
3 cable
AC LOSS
AC LOSS
EU]
MASS FLOW [g/s]
PANCAKE
Quenchtime
4.743
4.633
5.112
203
1.11
1.57
5.86
[ J]
2101
2470
19903
1719
3162
1443
12070
30 kA
3 s
5.00 kA/s
Yes- Coil C crossover turn.
Quench detection sequence
VB5-6,MC03,VBl-2,MC01
P*T1 -'--T2----lW
TME (s)
3 s
3.75 kA/s
ACLS[]
ACLOSS UlJ
A
AT
5.08
5.20
M
nfTm
No
Quenchtime
4.675
4.687
Waveform
30 kA
Im
Flat top
kA
DM Shot number 263
Single coil
5.670 T
Tm
Quench?
--
E
IN
2.607
3.356
3.75
2.941
19.46
6
-
7.615
12.01
3a
0.53
TEMPERATURE [K]
MASS FLOW [gls]
PMMEOTLE'r
Bm.
BmjTIm
l/rm
Tm=T1
MASSR.OWW31
PANCAKE
13:31
8s
Tzi=
TIME (s)
h=
12/12/90
s
US-DPC Test Report
Run number
January 1992
DMShotnumber 278
126
Dat
Waveform
TT=
m
Is ---
TI
OUTiLB
DUFAL
T
1
2
3 cable
6.304
3 coer
1914
2.725
4 corner
4 cable
75s
3a
T3 =
0.5s
Im=
30 kA
4.747
OUTLET
PEAK
5.26
0.60
4.685
5.53
4.819
5.67
0.84
0.85
-
-
4.632
4.722
4.765
5.53
5.89
5.75
0.90
7.65
3.01
6
19.2_9
4.577
5.114
6.84
1.73
Waveform
T1=
T2=
Im=
-.-
q---2----*44T1
TIME (s)
1
INLET
ouT=T
TEMRATURE [K]
OIn
M
5
6
13.15
20.9
20 .9
__4
Bm
Tm
42.57 i/s
6.098 an
4.745 K
Bm/rm
1/Im
14:04
4.158 T
1s
4.158 T/s
1.000 1/s
Tm
Fat top
Tm/n
1s
3s
Quench?
No
22kA
Quenchtime
AT
4.679
4.686
5.00
4.745
0.31
4.818
5.07
0.25
302
4.63
4.72
4.765
4.90
5.02
5.01
345
4.634
4.93
4.35
0.27
0.30
0.25
0.30
. 74_
5.119
AL
204
s
AC LOSS [ J]
PEAK
4.92
N
8.52
2.29
3.16
3.58
2.55
Tine
1212j90
Tm=T
2
3 cable
3 comer
4 comer
4 cable
14501
'4
MASS FLOW [g/s]
PANCAKE
22365
3341
1507
Daft
Total inlet flow
Inlet pressure
Inlet temperature
Connection Single coil
Mode AC
Description Single trapezoid
s
2531
-
1302
1834
0.98
4.636
DMShotnumber 279
6.85
1992
1229
1.17
4.577
4T1-
1/s
ACLOSS [J]
19.209
0
Inid'm
30 kA
3 s
4.29 kA/s
AT
4.665
-
3.395
3.789
3.053
127
Hat top
Quench detection sequence
VB5-6,MC03,VB1-2,MCO1
Qwnchtime
5
Runnumber
s
T/a
Yes- Coil C crossover turn.
Quench?
Tm=T
MASS LOW [g/s]
NIRM
Bm/nn
1/rm
in
T
4Sb
2
TIME (s)
PANCAKE
=
13:53
5.670
7
0.810
0.143
Bm
Tm
37.427 ds
5.124 an
4.747 K
Total inletflow
Inlet pressure
Inlettemperature
Single coil
Mode AC
Description Slow-ramptrapezoid
Connecion
Time
12/1290
0.25
946
647
3665
407
306
713
1359
1
1
22 kA
3 s
22.00 kA/s
US-DPC Test Report
DM Shot number 280
128
Run number
January 1992
Total inlet flow
Inlet pessure
Indettemperature
Connection Single coil
Mode AC
Description Singletrapezoid
Waveform
TEMPERATURE
-
OUTIEF
wmAL
flT
MN
4 corer
4 cable
2.46
0.27
5.06
0.34
4.85
5.13
4.668
4.761
4.96
5.08
0.28
0.29
4.8
5.07
4.675
4.99
15.142
4.40
Connection
Singlecoil
Mode
0.32
0.27
0.32
Dm
DM Shot number 264
129
Im
24 kA
Description Single trapezoid
Waveform
Tl=
m - - -
Is
3s
24 kA
T=
Im=
1050
337
727
.
39
467
4110
344
1522
14:25
Tune
12/12#90
35.341 zts
5.763 sun
4.801 K
Totalinletflow
Inletpressure
Idet wmprature
AC
s
AC LOSS [J]
-
4.97
4.775
6
Run number
No
AT
PEAK
4.719
28.48
22
3.12
3.59
[K]
-
1 8.484.695
13.1
TIs
1/s
Quench time
Tm=T1
MASS FLOW [g/s]
3 cable
3 comer
s
Rat top
23 kA
TIME (s)
RNW
Quench ?
m/rm
23 kA
3 s
23.00 kAfs
Im
TI
:IO
7
F*I O
'hn
nm
1fm~
Is
3s
I112=
I
4.347
1
4.347
1.000
Bm
42.38 g/s
6.524 ain
4.775 K
Tl=
T =
14:15
Tme
12/1290
Daft
4.536 T
Is
4.536 T/s
1.000 1/s
Bm
Tm
Bn/fm
1/rm
Quench ?
Hat top
Tm/fm
3
Yes- Coil C crossover turn.
Quench detection sequence
MC03,VB5-6,VB1-2,VB3-4,MCO1
0
TI-r---T2
Tll
MASS
PANEK
1
2
3 cable
3 comer
4 comer
4 cable
FLOW
R
84.718
miAL
I
1
13.574
4.801
13.086
4.742
4.869
PEAK
5.42
0.55
0.58
0.72
0.60
1.77
5.26
3.692
2.754
4.779
4.819
5.50
5.42
4.578
6.35
6.18
4.633
4.694
AC LOSS [J
0.43
0.59
4.685
205
s
1.1
AT
5.15
5.33
3.263
5
6
K
EPRTR
[gs]
o~OUEILr
2.545
Quenachtime
Tm=TI
TIME (s)
1.49
1879
739.6
744.5
975.9
794.9
1484.1
8958.9
1770.8
3825
1
s
24.00 kA/s
January 1992
US-DPC Test Report
DMShotmumber 265
130
Rimnumber
T=
T2 =
=
--
aaIm
0
Is
l3s
23 kA
13 s
23.00 kA/s
1.0001ifs
Quench 7
Yes- Coil C crossover tum.
Quench detection sequence
VB5-6,MC03,MCO1
BImLAL
4.677
PEAK
5.09
AT
4.686
0.41
3 cable
3 corner
4 comer
X
X
X
4.814
4.625
4.714
5.25
5.36
5.20
5.48
4 cable
X
4.761
5.40
0.56
0.54
0.57
0.77
0.64
4.629
6.95
2.32
5.112
6.56
1.45
2
5
4.574
X
6
DM Shot number
131
Run number
Dale
266
Waveform
-- --- -hn --
Inlettemperature
--NT1=T1=
T3
S
1
OUI1.EF
E
6.882
6.882
2
3 cable
3 comer
4 coner
4 cable
_
)mr
I MAL
3s
0.5s
Th/1m
1/rn
0.533 Tls
0.091 1/s
Quench ?
No
AC LOSS [J]
AT
5.07
0.42
5.21
5.25
0.54
0.44
5.08
5.22
5.18
5.10
0.47
0.51
0.43
549
0.38
-.
4.617
4.709
2.889
4.752
4.561
Tm
5.859 T
11 s
Quenchtime
4.67
3.748
_
Bm
14:46
Its
4.654
3.332
2 64.621
20.06-- _
PEAK
4.805
2.559
Tne
12/12,90
4.732 K
Tm=T1
MASS FLOW [g/s]EK
INLET
X
31 kA
aIm=
TIME (s)
MASSAK FO
X
39.352
Inlet pressure
Mode AC
Description Slow-ramptrapezoid
X
X
X
X
g/s
6.026 arn
Total inlet flow
Single coil
io n
S
1.3
T
ouT
I
Quench time
Tm=T1
(5)
FOW
LMASS
[gs]
6_
23 kA
Im
Hat top
ITm/fin
-TIM
C
4.347
Bsfru
K
1/ran
Waveform
I
4.741
CInlettemperane
Singletrapezoid
Description
TM
T
5.215
Inletpressure
AC
4.347 T
1 s
Bm.
X Pis
Total inlet flow
Single coil
Connection
Mode
14:36
Thm
11290
Dole
5.101--
--
4
206
0.48
L38-
1249
542
581
5612
678
556
2006
Im
Mat top
hnim
31 kA
3
s
2.82 kA/s
January 1992
US-DPC Test Report
Daft
DM Shot number 281
132
Run number
Waveform
m
TI=
1 5
hm-
3s
23 kA
- - -2=
P*T1&
0
----
2.353
3.308
3.71
2.596
4.369
4.63
AT
0.26
4.316
4.64
0.33
4.336
4.499
4.282
4.355
4.429
4.26
4.814
4.76
4.57
4.67
4.69
4.58
5.05
0.26
0.29
0.32
0.26
--
De
903
270
2386
-44042
1656
No
s
1173
7874
1110
Inletpreswre
Bm
Tm
Bmnm
1/rm
TI=
S-7 -_T=
Im=
is
3s
24 kA
15:45
Tam
12/12190
42.28 gfs
5.11 an
4.271 K
Inlettemperatue
Waveform
Quench ?
4.536 T
1s
4.536 Tts
1.000 1/s
Im
Flat top
In/rm
Quench detection sequence
MC03,VB5-6.VB1-2.VB3-4.MC01
PANCAE
MAS
FLOW Ws]
[g/eJ
MASS FLO
-
NLL7
1
28.28
3 cable
3 corner
4 comer
4 cable
13.2
4.271
4.086
5
6
2.35
3.23
3.62
2.58
20.8
Quench time
Tm=T1
TIME (s)
4.
ALS
ACLS]l
[K]
TEMPERATURE
-w .L I
4.301
4.244
4.433
4.213
4.277
4.361
4.187
4.749
PEAK
4.80
4.92
5.07
4.90
5.18
5.11
6.49
6.22
207
1.13
J
AT
0.49
1925
0.67
0.63
0.68
753
771
1524
0.90
0.74
2.30
1062
1912
1.47
24 kA
3 s
24.00 kA/s
Yes- Coil C crossover turn.
U
OUTLET
23.00 kAfe
0.24
Total inlet flow
Connection Single coil
Mode AC
Description Single tezoid
INLET
23 kA
3 s
1549
0.32
DM Shot number 267
133
Run number
Im.
Hat top
Im/m
AC LOSS [J]
4.153
21.48
Quench?
Quenchtime
PEAK
A
8.656
13.53
4.347 Ts
B/Tnm
Tm=TI
MASS FLOW /s]K]
MASSAKE Louiir
BUMA r OUTLET
ou r
3 cable
3 corer
4 comer
4 cable
5
6
4.347 T
1 s
Bm
TM
T1
TIME (s)
2
43.666 gs
6.166 an
4.336 K
Total inlet flow
Inlet pressure
Inlet tenpratie
Connection Single coil
Mode AC
Description Single trapezoid
15:33
Tne
12/12/90
8411
850
3050
1
s
US-DPC Test Report
Run number
January 1992
Inletpressure
Inlettempeatixe
Waveform
35a
0.5s
a m=
MASS FLOW [g/s]
1
9N4"
onOu_
OUTLE
12.4
2.553
3.331
3.712
2.866
4.258
5
19.96
6
Run number
135
PEAK
4 comer
4 cable
5
66
0.66
4.96
4.78
4.89
4.87
0.54
0.58
0.63
0.52
4.79
5.20
-
OFULE
X
X
5999.5
2169
5.198
4
1.300
0.250
Bm
Tm
Bin/Tm
x R/s
5.135 aim
4.261 K
1/trm
4s
3s
27.5 kA
7Quench
16:14
Tme
12/12o90
Quench ?
T
s
T
1/s
Im
4At top
m/Tm
o
-
INIET
DTIrAL
detection sequence
Quenchtime
4.261
4.423
4.202
0.59
0.85
5.24
0.82
-
4.264
4.352
0.88
1.13
0.94
4.185
6.76
2.58
4.735
6.40
1.67
208
X
X
-
5.08
5.39
5.30
4.04
ACLOSS (J]
-
AT
PEAK
4.90
5.08
X
X
X
X
27.5 kA
3 s
6.88 kA/s
Yes- Coil C crossover tum.
VB5-6,MC03,VB3-4,MCO1
Tm=T1
4.227
X
1202.2
628.8
721.3
-1302.3
581
T1 I
x4.309
-
573.4
0.46
Total inlet flow
Inlet pressure
Inlet temperature
m=
S=
1326
0.60
Dle
Ti=
MASS FLOW [g/s]
3 cable
3 comer
0.51
4.88
4.182
4.731
a
1
2
&T
4.79
4.223
4.419
4.199
4.262
4.349
-T2=
4T1I---T2---TIME (a)
Quenchtime
ACLOSS [_J_
DimAL
Waveform
INLEF
32kA
DM Shot number 269
Connection Single coil
Mode AC
Description Single trapezoid
-
/S
-
-
RAM
6.9084.281
2
3 cable
3 comer
4 comer
4 cable
mTm
32 kA
3 a
2.91 kA/s
No
Quench ?
Tm=T1
TME (s)
PANCAKE
1/Tm
Im
Flat top
11 s
T1=
T2 =
a3 =
bn ---------
T
a
Ts
6.048
11
0.550
0.091
Bra
Tn
BWfm
39.268 xfs
6.142 an
4.258 K
Total inlet flow
Single coil
Mode AC
Description Slow-ramptrapezoid
Connection
16.02
Time
12/12)90
Daft
DM Shot number 268
134
s
US-DPC Test Report
Daft
DM Shot number 282
136
Run number
January 1992
Waveform
Ti
24.279 g/s
6.074 _a
4.268 K
Total inletflow
Inlet pressure
Inlettemperarme
Single coil
Mode AC
Description Single trapezoid
Connction
3s
----
INLET
1
2
TEMPERATURE (K]
OUTT
mE
4.301
6.22
4.235
1.036
-----
3 comer
4corner
----
4.268
4.208
4.272
4.51
4.60
4.194
4.64
4.54
4.746
5.02
14.359
4.083
13.632
0.30
0.33
189
212
0.28
185
3s
Quench 7
No
Quench
_im
(K]
I
r
4.23
4.66
4.428
4.77
4.205
4.58
0.38
371
4 comer
3.62
4.269
4.68
0.41
4 cable
2.58
4.355
4.70
4.19
4.736
4.58
0.34
0.39
429
5.04
0.30
_.28
5
20._
T
s
T/s
h/s
AC LOSS [ ]
2.35
3.23
6
3.402
.2
17.010
5.000
Bm
Tm
BnVrm
16:38
18 kA
Tm=T1
MASSTEMPERATURE
-oXT
M ASS FLO
INLET OUTLET IZIrAL
4.294
8.28
13.2
Tune
12/1290
AT
0.33
0.43
0.34
3 cable
3 comer
2147
3
_
TIME (s)
2
[J]
832
42.28 ges
6.074 an
4.267 K
Im=
1
s
0.2 s
T1=
1 2=
Tm
--
No
1/rm
Waveform
T1
114
Die
Total inlet flow
Inlet pressure
Inlet temperature
Connection Single coil
Mode AC
Description Single trapezoid
I
Flat top
m/rm
27.5 kA
3 s
5.50 kA/s
615
0.28
0.35
0.28___E
DM Shot number 270
137
Run number
TIs
Im
-3-3
2.013
6
0.27
0.34
4.58
4.71
4.429
4.426
cable
0.200 1/s
AC LOSS
AT
PEAK
4.57
wnAL
6=1
3 cable
1/Tm
1.040
Qench time
Tm=T1
MASS FLOW [gfsJ
-OU7
5.198 T
5 a
IO
TIME (a)
PANCAKE
BID
Tm
BmIvm
Quench ?
Im= 27.5 kA
F*T 14
16:25
5Si
TI=
T2 =
-
Tame
12/12490
4.0_
1
PeAK
4.63
209
1014
331
3868
754
325
1398
Im
Flat top
fm/1'm
18 kA
3 s
90.00 kA/s
January 1992
US-DPC Test Report
Run number
138
DM Shot nnber 271
Waveform
16:49
Bm
3.591 T
'B
hnlni
.2 s
17.955 Ts
1/rm
5.000 1s
Im
Flat top
Infrm
19 kA
3 s
95.00 kA/s
0.2,s
T1=
'1'=
--
Tne
12/1280
41.99 als
6.098 am
4.266 K
Totalinletflow
Inlet pressure
Inlettemprarure
Single coil
Mode AC
Description Singletrapezoid
Connection
I-
Dat
3a
SIm=
No
Quench 7
19 kA
£
TIME (s)
1
IN__
OUTE
4.287
PEAK
4.65
4.229
4.70
4.425
4.205
4.80
4.62
3.63
4.268
4.72
2.58
4.355
4.73
4.189
4.735
4.61
5.06
2.39
3.2
13.19
4 coner
cable
4.266
24
6
4.08
2_.6
Run number
139
xr
____AL
8.2
2
3 cable
3 comer
ACLOSS [J]
-
AT
0.36
0.47
0.38
0.41
0.45
0.37
0.42
1109
386
403
789
471
835
4254
364
1521
0.32
DM Shot number 272
Dat
2/1290
Tme
Brn
Tm
42.46 pfs
6.074 an
4.262 K
Totalinletflow
Inlet pressure
Inlettemperatum
Connection Single coil
Mode AC
Description Single trapezoid
Bak/rm
1/Pm
Waveform
mi
TIME (a)
ACAEINLET
1
OUI
TEM_
__
8.31
6
13.25
20.9
2.45
3.2
3.63
2.64
3s
fim=
20 kA
[K]
r
2
3 cable
3 comer
4 corner
4 cable
T2=
Tm=T1
PNLECOULETOUTIlIA
4.262
4.077
3.780
.2
18.900
5.000
16:59
T
s
T/s
Im
Flat top
Im/,m
1/s
0.2 ,
TT=
,-
MASS FLOW [g/s]
s
[K]
TM
MASS FLOW [g/s]
PACAKEo
Quench time
Tm=T1
Quench 7
Quenchtime
ATAC
AT
0.40
0.52
LOSS
jAL
4.292
PEAK
4.69
4.228
4.75
4.423
4.204
4.267
4.353
0.42
0.46
459
452
911
0.49
0.41
0.47
528
440
968
4.188
4.84
4.66
4.76
4.76
4.66
r4-.736
5.09
0.36
210
No
a
[ J]
1280
4901
1742
20 kA
3 s
100.00 kA/s
January 1992
US-DPC Test Report
140
Run number
Cannection
Mode
Description
X
Total inletflow
Single coil
Single triangle
WaveforM
*
0.284
5
0.057
0.200
Bm
-9s
5.910 an
Inlet pressure
Inlet lperste
AC
THM
12/13/90
Due
DM Shot number 273
Tn
Bmf/m
4.357 K
1/rm
TI=
Ss
Tm=
1.5 kA
10:20
Im
T
s
TIs
Hattop
1.5 kA
0
a
im/rm
0.30 kA/s
lm
0.284 T
Flattop
- 5 s
0.057 T/s Im/Tm
0.200 1/s
1.5 kA
Quench ?
1/s
No
A
4eT1* 14Ti*1
TIME (s)
PANCAKE
MASS FLOW g/s]
INLET OUTET
-
L
NLEmT
1
s
Quench time
Tm=TI
T'rURM
PEAK
ACLOSS [J]
AT
4.384
4 coma
X
X
X
4cable
X
3 cable
3 comer
5
X
4.35
2
4.357
4.277
4.346
6
141
Run number
Connection
Mode
x
X
4.264
-
_
-_
4.799
Dufe
DM Shot number 284
AC
Inlettenmrawre
Wavefonn
A
Time
12/13/90
Bin
x ?is
5.885 ahn
4.358 K
Total inlet flow
Inlet pressure
Single coil
Description Single triangle
h
0.04
4.38
4.42
4.176
5X
X
X
X
4.495
'm
Bm/Tm
1/rm
TI=
5s
Im=
1.5 kA
Quench?
0
TIME (a)
[K]
FLW
MASS WsMPERATURE
-ACLS[]
MASS FLOW [g/s]
PANCAKEOnEr
INE
OULET INLET mNtAL
PEAK
2
3 cable
6
ACLOSS [ J]
AT
4.385
1
3 comer
4 comer
4cable
5x
Quenchimes
Tm=T1
X
4.358
XX
X
X
4.176
X
4.351
4.495
X
4.278
4.346
4.421
X
X
X
X
4.265
4.8
211
10:28
0
s
0.30 kA/s
January 1992
US-DPC Test Report
142
Run number
De
DM Shot number 285
Wavefonm
72
Im
4.158 T
Bm
5
'1
s
0.832 TIs
0.200 1/s
Bm/rm
1/rm
Flattop
Im/rm
22 kA
3 s
4.40 kA/s
5s
TI=
.
h
43.56 g/s
5.885 ain
4.361 K
Tot inlet flow
Inlet presaure
Idlett mfpaumr
Connection Single coil
Mode AC
Description Singletrapezoid
10:38
Time
12/13,90
3s
=
Quench?
No
Quench time
_
22 kA
hm=
0
TIME (s)
Tm=T1
(K]
MASSTEMPERATURE
PMLCAKE
INLET OUTLET
1
m INIAL
11.17
2
3 cable
2.15
3 comer
12.41
4 comer
4 cable
5
4.361
143
0.22
4.62
0.26
4.495
4.71
4.52
0.21
4.60
4.64
4.52
5.01
0.25
3.41
2.42
4.347
4.422
4.178
19.98
Run number
4.62
4.353
4.279
4.255
4.8
Im=
194
249
443
304
210
514
2643
1015
12/13/0
Tine
Bm/Frm
1/Irm
4.158
2
2.079
0.500
Quench?
No
Bm
Tm
43.56 x/s
5.929 an
4.364 K
Inlet tmperature
T1=
T2=
671
0.21
Total inletflow
Inlet pressure
.-
I
0.22
0.26
Daf
Waveform
I
0.24
DM Shot number 286
Connection Single coil
Mode AC
Description Single trapezoid
ACLOSS [J]
AT
PEAK
4.393
3.02
6
otmzr
10:49
T
a
T/s
Im
Flattop
Im/Fm
1/s
2
s
3s
22 kA
___1
0
n--T--.M
TIME (s)
P*TI
FLDW [gs]
PNAEMASS
PMAEoumzr
INLE
ou7=l
nTam
Tm=T1
2.15
3on4
.
4
5
43.024.285
3.41
2.42
19.98
4.353
4.428
4.26
mmL
4.393
4.36
4.5
1
2
3 cable
[KACOS
PEAK
AT
0.25
4.64
0.30
4.66
0.24
4.74
4.55
0.26
4.64
0.28
0.24
4.67
4.55
0.29
1
TMATR
' IXT
4.181
212
s
Quench time
0.23
AC LOSS [J]
731
209
267
4737
323
226
1081
22 kA
3 s
11.00 kA/s
US-DPC Test Report
Inlet temperature
WaveformTI=
IMn
.S
35s
3
22 kA
-T2=
Im =
INLET
1
11.23
2
11.23
3 cable
3 comer
4 comer
12.45
OUTLET
T
ME
4.367
2.39
4 cable
1
2.4
6---1
Run number
Conncton
Mode AC
Description Single trapezoid
4.361
4.68
0.32
4.501
4.288
4.355
4.76
4.57
0.26
0.28
226
286
512
4.66
4.69
4.57
589
4.808
5.05
0.30
0.26
0.30
0.24
347
4.431
4.264
1149
43.93 g/s
Inlet pressure
6.050 sun
4.37 K
Inlettanperalire
T2=
2
0.75 s
3s
Im=
Tune
11:12
Em
4.158 T
TM
75 s
5.544 T/s
1.333 l/s
Bm/rm
1/rm
Quench?
No
22kA
0
MASS FLOW [/s]
INLET
OUTLET
Quench tme
Tm=TI
TIME (s)
ACLOSS [J]
-TLE[
M
i
AL
AT
0.38
-
11.3
4.404
PEAK
4.71
2
3 cable
3 comer
4 comer
4 cable
11.3
4.366
4.505
4.74
4.81
3
4.291
4.62
3.43
2.39
4.36
4.434
4.72
4.73
0.31
0.33
0.36
0.30
4.268
4.81
4.62
0.35
5.08
0.27
1
5
6
2.16
12.53
20.1
4.37
4.189
213
3 s
14.67 kA/s
3042
242
Total inletflow
TI=
Im/rm
792
12/13/90
--
Flat top
22 kA
AC LOSS [ J]
4.401
Waveform
1m
s
AT
0.27
Single coil
T
a
T/s
1/s
No
PEAK
4.67
DM Shot number 292
145
11:01
QuenchatiM
oynzr[K]
0AL
.
2.14
3.04
3.44
Quench?
Tm=TI
MASS FLOW [g/s]
TM
inn
1/rm
T2=
TIME (S)
4.158
1.5
2.772
0.667
Bm
43.71 gls
6.002 an
4.367 K I
Total inlet flow
Inlet pressure
Connection Single coil
Mode AC
Description Single traezoid
TIme
12/1390
Di
DM Shotmmnber 291
144
Ran number
January 1992
0.31
958
295
622
327
3783
572
294
8
1337
Im
22 kA
Fqattop
3 s
29.33 kA/s
Im/rm
January 1992
US-DPC Test Report
Run number
DM Shotnumber 293
146
ion
T1=
3Quench?
22kA
Im =
M
1
2
3 cable
3 corner
4 comer
4 cable
_L27
2.22
2.98
3.42
2.46
12.48
4.371
4.191
6
2.4.9
147
Runnumber
-
-
5UTIEF
DMShotnumber
JN!IAL
owTUR
O
ACLOSS [J]
PEAK
4.404
4.75
AT
0.35
4.366
4.80
0.43
4.506
4.292
4.36
4.435
4.20.1
269
4.1
4.86
4.67
4.77
4.78
0.35
0.38
0.41
0.34
0.39
0.301
4.66
5.11
Daft
294
1117
364
367
447
374
731
4469
1800
12/13190
Bim
X 0
5.135 an
4.372 K
Tl=
T2=
I
I
i
Ti
BnuTm
_
um=
DndAL
x
3 comer
4 coner
4 cable
4
4
X
X
X
4.191
PEAK
AT
4.521
0.50
0.64
28.68
________4.368
x
OUTrr
4.90
5.01
33.20
Ix4.401
2
3 cable
Quench?
22kA
Tm=Tl
OUILET
LIM
Hat top
1m/Tm
-
ACLOSS
J]
x___
X
4.31
14.15
9.94
x
4.99
X
14.435
4.27
4.96
4.85
0.63
0.53
4.806
5.22
0.58
0.42
Quench time
___________
4.361
214
22 kA
3 s
73.33 kA/s
Yes- Coil C initiated from joint.
Quench detection sequence
VB3-4,MC02,MCO1
TIME (s)
INLET
4.158 T
.3 s
13.860 TIs
3.333 1/s
3s
_
MASS FLOW [gs](K]
PANCAK
11:33
0.3 s
I
__
-
Tum
1/Tm
Waveform
s
S
-AL
Total inlet flow
Inlatpressure
Infettemperature
Connection Single coil
Mode AC
Description Singletravezoid
22 kA
3 s
44.00 kA/s
1/s
Quenchtime
-TLET
INLET
Tls
In
Flat top
1w/Tm
No
Tm=T1
MASS FLOW [g/s]
T
s
0.5s
S7
TIME (s)
11:22
4.158
.5
8.316
2.000
1I/rm
Waveform
PANCAKE
Ture
Bin
Tnn
Bm/T'm
43.85 gls
6.074 atm
4.371 K
Total inletflow
Inlet pressure
Inlettanerature
Single coil
Mode AC
Description Singlerapezoid
Cca
12/13)90
Dl
X
X
a
January 1992
US-DPC Test Report
DM Shot number 287
148
Run number
Total inletflow
Inlet pressume
Single coil
Cannetion
Mode AC
Description Single trapezoid
Inlettemperature
T1=
T2=
-Im=
MASS FLOW [g/s]
PANCAKEOUT
O
NLET
2
3 cable
3 comer
4 comer
4 cable
X
X
X
X
D4l1ET=nAL
4.375
5.02
' 32.48
11.04
0.62
0.52
4.27
4.85
0.58
5.23
0.42
PEAK
4.91
Dde
Im=
TIME (s)
INLET
1
FLAW [g/s]
OUTLEBT
2.09
296
.12.45
3.371
2.351
4comer
4 cable
19.91
0.2 s
3s
15kA
J]
X
X
X
X
X
X
_____
Tune
12/13190
Bm
Tm
Bm/rm
13:16
2.835
.2
14.175
5.000
Quench?
Im
T
Rat top
ImIm
s
T/s
1/s
No
Quenchtime
Tm=T1
TEPR
Ml-r
11.21
.
----
ACLOSS
9
b MTIO;
------
MASS
-
l/rm
T2=
-
Yes- Coil C initiated from joint.
Quenchtime
43.57 ais
6.050 ahn
4.371 K
Total inletfow
Inletpressure
Inlet temperature
T1=
4.371
4.191
-REA
UE[K
EOuTer
-
ACLOSS [J]
PEAK IAT
4.396
4.67
0.27
4.363
4.505---4.292
4.359
4.435
4.268
4.68
4.76
0.32
0.26
4.57
4.66
4.68
4.56
0.28
0.30
0.25
0.29
4.803
5.03
ft
215
3 s
105.00 kAs
Quench detection sequence
VB3-4,VB1-2,MC02MCO1
37.00
15.35
4.98
4.96
-
*T19
Quench?
21 kA
im
Flattop
lm/lrm
21 kA
4.403
4.368
4.519
4.31
4.358
4.437
Waveform
0
Bm/rm
0.2s
3s
DM Shot number 288
Connection Single coil
Mode AC
Description Single trapezoid
in
.2 s
19.845 T/
5.000 1/9
AT
0.51
0.65
14.809
6
149
3.969 T
TM
TCMPOSSUREl]
5
Run number
Bm
5.124 stm
4.375 K
Tm=Tl
TIME (s)
-
x pis
1/1'm
Wavem
11:48
Tne
12/13/90
Da
779.1
218
478.3
260.3
316.9
226.5
2857.8
1057
d
15 kA
3 s
75.00 kA/s
US-DPC Test Report
Run number
January 1992
DM Shot number 289
150
Connection
Mode
Description Two-step trapewoid
DEe
Total inlet flow
40.864 x/a
Bin
Inletpressure
Inlet tenpraflure
6.074 sun
4.369 K
Tn
Bm/Tm
I/nm
Waveform
T1=
-hn -- --T7=
*
*
TMO--
T4=
TS =
5=
a
im=
i
O i
0
T3=
hm=
MASS FLOW [g/-s]
~
PANCAKE
RNLE
1
DWIAL
4.401
9.504
2
3 cable
3 comer
2.179
3.012
11.36
4 co3.399
4 cable
4.369
2.409
4.189
20
5
6
Run number
- - - - -- - -
4.81
0.45
4.87
4.29
4.69
4.358
4.78
4.435
4.79
4.266
4.805
4.68
5.13
0.36
0.40
0.42
0.36
0.41
ILo --
I
I
I
4-4I
1
4 cable
19.96
5
6
355.1
834.8
1593
Time
12/13/90
5.670
3
1.890
0.333
Bm
Tm
Bm/rm
Q=nc
Quench?
13:37
T
s
Tis
Jm
Flat top
Im/rm
1/s
No
s
Quench me
[K]
OUiLET
m AL
4.402
4.365
2.176
12.5
4141.4
479.7
22kA
3okA
Tm=T1+T2+T3
2
3 comer
4 comer
744.7
399.4
spT344-T4-'4T5S4
11.23
3 cable
IsN
Is
3s
is
ImO=
MASSEMPERATURE
INLE
Is
T-
lIm =
I
TIME (s)
PANCAKE
968.9
345.3
43.69 g/s
6.050 san
4.37 K
T1=
TS=
I
S
s
Quench time
0.32
DE
73
T=
T4=
4.37
On"
PEAK
4.82
AT
0.42
4.88
0.52
ACLOSS [J
1339
4.505
4.93
0.43
411.8
2.954
4.294
4.75
0.46
454.7
3.38
2.387
4.357
4.435
4.85
4.85
0.49
0.42
553.4
419.5
269
4.
44.806
4.74
0.47
5.17
0.36
216
3 s
9.00 kA/s
No
M/im
-
Hat top
lziTm
27 kA
0.37
4.365
4.506
Waveform
im
AT
Total inlet flow
Inlet pressure
Inlet temperanre
Single coil
Mode AC
Description Two-step traezoid
Connection
lm
ACLOSS [J]
PEAK
4.77
DM Shot number 290
151
3 s
1.701 T/s
0.333 I/s
Quench?
[K]
T
jOvLr
FiUTr
T
.103
1
IS
Is
3s
Is
i
22 kA
27 kA
Tm= T1+T2+T3
TIME (s)
13:27
Time
12/13,90
866.5
5022.4
9
1844
30 kA
3 1a
10.00 kA/s
US-DPC Test Report
Run number
January 1992
DM Shotnumber 295
152
Due
Total inet flow
Inlet pressure
Inlettemperanre
Single coil
Mode AC
Description Two-step tapezoid
Conction
12/13190
Time
But
22.917 g/s
5.184 atn
4.374 K
13:49
5.670
2
2.835
0.500
Tr
Bm/Im
1/Im
Im
T
s
Flat top
T/s
Im/rm
30 kA
3 s
15.00 kA/s
1/s
Waveform
T1=
Is
T3 = 0.27 s
I
T4=
km
TS=
in =
Imo=
0
T-42awT301q--T4-0 4T5qs
TIME (s)
3 corner
----
4.374
5.641
3.635
8.026
---
6
5.20
4.194
153
30 kA
1.97
Quenchtime
s
(JI
AT
0.80
5.63
1.26
6.57
2.07
3373
3020
4.3
6.44
2.14
3455
4.364
7.43
3.07
5786
4.445
6.87
9.70
2.43
5.43
4913
4.27
-
-
4.7
Run number
VB5-6,MC03,VB3-4,MC02,MCO1
22 kA
6828
-6-2-
4 coner
4 cable
PEAK
4.37
4.3744.501
3.166
-----
Quench detection sequence
TUR [K]
WIAL
4.4
9.25
2
3 cable
Yes- Coil C crossover turn.
ACLOSS
oUTE_ _N
__I_
1
I
Tm=T+T2+T3
M
MASS FLOW [g/s]
PANCAKEUT-
Quench ?
3s
7.32
12113190
Total inlet flow
Inlet pressure
Inlettnperavure
Single coil
Mode AC
Description Two-step trapezoid
10826
-
2.62
DM Shot number 296 _De
connection
31373
23.219 R/s
5.043 an
4.385 K
Tm
14:02
5.670 T
4 s
1.418 T s
0.250 Ifs
Bm
Tm
Bn/I'm
1/rm
un
Fqat top
m/Im
30 kA
3 s
7.50 kA/s
Waveform
3s
T=
T3= 0.27s
T4=
3s
I
=.
0
I-
-
1s
-TS=
Imo=
iI
T1200niig
MASS FLOW [g/s]
1
2
INLE
3 comer
4 coner
4
4 cable
6
-
MM
Quench time
JN
,IAL
OUTLET
PEAK
AC LOSS [3J]
AT
0.82
5.23
4.377
5.90
1.52
---3,262
4.3854.503
7.36
2.86
6114
4.3
7.90
3.60
6761
3.678
4.397
3.584
4.45
8.94
4.54
8771
9.26
4.98
4.385
4.203
18.35
____4.826
4.04
EMERATURE [K]
4.415
3.427
---
VB5-6,VB3-4,MC03,MC02,MCO1
30kA
Tun T1+T2+T3
10.065
--
3 cable
OUETI'
Quench detection sequence
-T4-44T5.d
TIME (s)
PANCAK.
Yes- Coil C crossover tum.
Quench ?
-12-875~~~
4.279
7.10
2.65
-
7.04
217
2.21
4038
6272
12875
42394
15043
10438
--- ____
s
January 1992
US-DPC Test Report
Single coil
Connection
Mode AC
Description Two-stev trapezoid
Total inlet flow
27.288 a/s
inlet pressure
5.038 an
Inlet temperature
Waveform
hl
--
T4=
-
I
i4 9b
INEIr
Imo=
-
OM '
YIN
4.549
-
-.
DMShotnumber
155
Runnumber
3o kA
8.22
3.70
10041
8.97
9.90
7.52
4.66
5.53
3.08
11453
4.281
7.82
3.54
4.827
6.69
1.86
298
Dle
Inlet temperature
Waveform
43.68
5.885
TI=
T2=
2s
3s
T4=
3s
T5=
Is
TiT=
22.
Tm = TI+T2+T3
TIME (s)
MASS FLOW (g/i
INLER
-
3 cable
59184
12200
9831
10891
Tune
12/1390
But
TM
a/s
m
0.986
Quench ?
No
1/I'm
14:28
0.174
Flat top
30 kA
3 s
Tm
5.22 kAjs
Im
5.670 T
5.75 s
BinIm
/s
1/s
OUILEI
-
2.151
12.49
4.385
3.006
3.422
2.362
19.96
4.203
s
Quench time
ACLOSS [J]
-
5
6
21494
eI41hIT30S4-T4--mI4T5*l
I.
3 comer
4 comer
4 cable
s
4768
4.385 K
T3= 0.75 s
I
4.42
ACLOSS [J)
4.523
4.306
4.368
4.444
Cmonection
1
2
Quench tit=
5.22
5.83
Totalinietflow
inet pressure
Single coil
Mode AC
Description Two-step trapezoid
VB5-6,VB3-4,MCO2. MC03
AT
0.79
1.45
PEAK
4.379
3.185
3.455
3.502
3.572
Quench detecmon sequence
OR
UE[K]
DnAL
-1-7-94.421
5
6
3 s
6.71 kA/s
Yes- Coils B and C crossover turns.
Quench?
3 a
IsT5=
Tm= T1+T2+T3
T
2
3 cable
3 comer
4 comer
4 cable
Hattop
Imlrm
=m 22kA
MASS
A
FLOW [s]
1
1.268 Ts
0.224 1s
30 kA
TI=
--
I
Imo
'n
Hatfrm
I/nn
0.73 a
3s
T2 =
T3 = 0.75 a
Tm
5.670 T
4.47 s
Bm
4.382 K
14:15
Tune
12/13/90
Dl
DM Shot number 297
154
Run number
AT
NAL
4.413
4.81
0.40
4.378
4.88
0.50
4.522
4.93
4.305
4.371
4.449
4.281
4.75
4.85
4.85
4.74
0.41
0.44
4.823
5.18
PEAK
218
0.48
0.40
0.46
0.36
1288
376.9
829.3
452.
4831.5
552.4
389.8
942.2
1772
January 1992
US-DPC Test Report
156
Run number
Dafe
DM Shot number 299
Inlettanperitire
Time
14:42
T
5.292
4.5
1.176
0.222
Bra
TIn
Bm/rm
35.064 gs
5.106 arn
4.375 K
Total inlet flow
Inletpressure
Single coil
Mode AC
Description Singletrapezoid
Comection
12/13)90
1/rm
s
T/s
Ink
Flat top
Imrn
28 kA
3 s
6.22 kA/s
1/s
Waveform
4.5 s
T1=
Quench ?
Qu=
Yes- Coil C crossover turn.
sequence
nkAQ
detection
MC03,VB5-6,VB1-2MCO1
TIME (S)
OUTLEV
INTET
12.48
3 cable
3 comer
4comer
4 cable
5
2.298
3
3.493
2.593
14.163
8.421
6
4.375
4.194
157
Run number
tAML
INLT
1
2
[K]
T
MASS FLOW [g/s]
PANCAKE
Quench time
Tm=T1
OUTLT
PEAK
4.4
5.04
0.64
4.369
5.27
0.90
4.51
4.296
4.364
4.441
4.27
5.35
5.19
5.49
5.38
6.86
0.84
0.89
871.3
958.6
1829.9
1.13
1404
1060
2464
2.59
6.43
1.62
4.812
Total inlet flow
Inlet pressure
Inlettemperature
Waveform
M
2800
0.94
Dfte
6
7T=
3Is
Im=
28 kA
11904.9
4811
12/13)90
TIme
But
Tm
41.8 ds
6.002 sn
4.375 K
T1=
s
AC LOSS [J]
AT
DM Shot number 300
Connection Single coil
Mode AC
Description Siniletracezoid
4.56
Bm/im
1/rm
15:53
T
s
5.292
6
0.882
0.167
Im
Flat top
m/Irm
T/s
1/s
s
Quench?
No
Ui
0P*T*fi"8---7 7
T&
--
TIME (s)
Quench tim
Tm=T1
MASS FLOW [g/s]
PANCAKE
1
MSMW
INLET
I
10.5
2
3 cable
3 comer
4 comer:: 12.17
4 cable
2.265
3.048
3.404
2.423
5
6
AC LOSS [J]
sOUtET
OUTLET
4.375
s
NNLAl
PEAK
4.407
4.68
4.37
4.70
4.514
4.298
4.3624.442
4.79
4.59
-2404.68
4.71
4.275
4.60
5.08
4.818
219
AT
0.27
0.33
803.1
0.27
0.30
0.32
0.27
0.33
0.26
257
319
378
266
576
3240.1
1217
F_
28 kA
3 s
4.67 kA/s
US-DPC Test Report
Doe
DM Shot number 301
158
Run number
January 1992
12.35
0.28
4.364
4.70
4.507
4.78
0.34
0.28
250
2.987
4.292
4.59
3.334
4.358
4.68
0.30
0.32
311
372
2.354
4.437
4.71
0.27
257
4.268
4.808
4.60
5.07
0.33
4.371
DIAL
Dalf
Total inlet flow
Single coil
AC
Inlet pressure
T1=
'rz
1242
1
Time
12/1390
38.851
g/s
5.239
aim
ST=
Im=
I_
i
6.5s
3s
29 sA
29kA
J]
3267.4
15:25
Bm
5.481 T
Tm
6.5 s
0.843 TIs
Bm/Irm
1/rm
I
Quench?
Tm
Tm/Im
Yes- Coil C crossover tun.
Quench detection sequence
VB5-6,MC03.MCOI
TIME (s)
MASS
INLET
Tm=T1
OUTLI'
ITNIIAL
9.207
11.289
2.529
3.139
3.558
2.829
4.368
.
18&355
-
6.61
TEMPERATURE (K]
s]
W
Quenchtime
4.186
O
r
PEAK
ACLOSS [J]
AT
4.4
5.08
4.358
5.33
0.68
0.97
4.504
4.29
4.352
5.42
0.91
5.26
5.65
0.97
1.30
1043
1117
1700
4.433
5.52
1.09
1363
4.267
7.80
3.53
47805
6.84
20
220
2217
2160
23681
16241
_______
3
___
s
s
4.46 kA/s
0.154 l/s
44T1 *
-----
29 kA
Hat top
I
*T1 **-:
6
s
835.4
4.368 K
Inlettemperature
Single trapezoid
Tm
2
3 cable
3 comer
4 corner
4 cable
0.26
DMShotnumber 302
Wavefosn
1
AC LOSS
4.68
-4.19
159
Quenchtime
4.401
6
PANCAKE
No
Quench ?
AT
2.222
4 cable
C
28 kA
PMAK
R'IET
-
2
Description
In=
orimzr
1
Connection
Mode
Ss
3a
28 kA
3 s
5.60 kAfs
[S]K]
MASS FLOW
Runnumber
T1=
77=
Tm=T1
PMASAKO
INLI'
OULEr
19.7
1.058 TIs
0.200 1/s
Bin/m
Im
Flat top
Tm/rm
OT141
-T72
TIME (s)
5
Tm
1/rm
Waveform
3 cable
3 comer
4 comer
5.292 T
S s
Bm
4.371 K
Inlettemperalum
Description Singletrapezoid
F1 Tw-
42.95 93
6.050 am
Total inlet flow
Inlet pressure
Connection Single coil
Mode AC
15:04
Tine
12/13J90
US-DPC Test Report
Run number
160
January 1992
DM Shot number 303
Total inlet flow
Inlet pressue
Inlet temperaftue
Single coil
AC
Sile raezoid
Comnetion
Mode
Description
Dm
Waveform
al=
ii
8s
2=
3s
PMSCAKE
1
2
9.104
3 cable
3 comer
4 comer
2.448
11.36
4.379
3.138
3.544
2.729
4cable
5
1.53
4.2
6
18.53
4.
Run number
T
Im
s
Flat top
Im/rm
29 kA
3 s
4.14 kA/s
Quench fime
ACLOSS [J]
BmYAL
4.409
PEAK
AT
4.78
0.37
4.372
4.83
0.46
4.516
4.89
0.37
384.7
4.3
4.367
4.71
4.80
0.41
435.4
0.43
524.8
4.443
4.81
4.70
5.15
0.37
0.42
405.3
4.278
4.822
996.5
820.1
4267.7
1521
0.33
Dae
Total inlet flow
Inlet pressure
Inlet temperature
Connection Single coil
Mode AC
Description Single rapezoid
No
K]
DM Sbotnumber 304
161
29 kA
3 s
3.63 kAls
0.125 1/s
Quench?
Tm=T1
OULEr
Im
Hattop
Im/fm
29 kA
MASSTEMPERATURE
WOu'Zr
INLEX
9.504
15:36
5.481 T
8 s
0.685 T/
u/nn
Ti
TIME (a)
Tme
Bm
Tm
Bm/m
39.394 Ols
5.977 an
4.379 K
T1=
In . .
12/1390
12/1390
39.025 als
5.117 aim
4.374 K
Tune
5.481
7
0.783
0.143
But
Tm
I
Bm/rm
l/rm
Waveform
T1=
Tm .--
T2=
7g
35s
Im=
29 kA
15:46
T/
U/s
Yes- Coil C crossover turn.
Quench ?
Quench detection sequence
VB5-6,MC03,MC01
TIME (s)
Tm=T
TEMPERATURE [K]
MASS FLOW [g/s]
PA-CAKE
INLEr
OUTLEr
BE
NTAL
4.509
-;
1045
4.293
4.362
4.432
5.27
5.66
5.54
0.98
1.30
1.10
1116
1734
1375
4.268
7.98
3.71
4.806
6.82
2.01
9.326
4.398
9.326
4.364
6
11.36
4.374
3.333
2.796
18.339
4.193
221
7.16
ACLOSS [J]
5.09
5.34
5.43-
1
2.487
3.079
ounzr
PEAK
AT
0.69
0.98
0.92
2
3 cable
3 comer
4 comer
4 cable
Quench time
2304
2161
24494
3109
16920
s
US-DPC Test Report
Dde
DM Shot number 305
162
Run number
January 1992
a
Iu
Im=
Iu=
g~
IPUT
OUTLzr
ouTnm
PaTIAL
11.14
1
-
4.69
4.37
4.514
4.70
4.78
2.929
4.299
4 comer
4 cable
3.364
2.356
4.366
4.444
4.275
1984.822
19.8
6
2.13
4.376
-4.198
94
Run number
-9-.4
Waveform
-
a
I k
s
JJI
AC LOSS
AT
0.29
0.33
846
4.59
0.29
273.2
337.3
234.9
4.60
0.31
0.26
0.32
5.08
0.26
De
1175
0.5s
172=
3s
16:08
Time
12/13/90
Bm
Tm
Bm/rm
l/fm
3.402
.5
6.804
2.000
Quench ?
No
43.18 9/s
6.002 atm
4.369 K
T1=
3091.6
572.2
T
s
T/s
1/s
im
Flat top
Im/im
18kA
IkA
1:
-4---V-'1'
n
Ti
nTm=T1
Quenchtime
TEMPERATURE [K]
MASS FAW [/s]
OW [g/s]
L
INLET OU~TET
10.89
Da mounzr
INJfAL
2
2.18
12.41
Quench time
4.68
4.70
Im=
Iu=
I
a
a
a
TIME (a)
5
6
ikA
225.2
Total inlet flow
Inlet pressure
Inlettemperalure
Single coil
AC
Description Double trapezoid
Cbonetion
Mode
3 cable
3 comer
4 corer
4 cable
3 s
24.00 kA/s
No
0.26
DM Shot number 306
163
2
PEAK
4.402
2
3 cable
-----3 comer
12.48
1
n/Thm
12 kA
12kA
Tm=T1
Ti
IBM (s)I
MASS FLOW [g/s]
PACK
PASE
1m
Flat top
+
T2
IlU
BmIm
T1= 0.5s
T2=
3s
=Quench?
ST
u
'TIM
lrm
Waveform
T
s
T/s
1/s
2.268
.5
4.536
2.000
Bm
43.42 dgs
5.953 am
4.376 K
Totalinltflow
Inlet pressure
Inlet temperatume
Single coil.
Mode AC
Description Two travezoid
Cbnnection
15:57
Tme
12/13/90
4.369
PEAK
4.85
4.92
0.46
0.46
0.50
454.8
0.53
0.44
0.52
600.3
4.509
4.97
4.291
4.79
3.383
2.376
4.36
4.89
4.437
4.88
4.268
74.808
4.79
5.21
4.189
19.88
I
ACLOSS [J]
AT
4.397
4.361
2.931
222
s
0.56
0.40
1483
94
492.2
456.5
5533.8
1056.8
2047
18 kA
3 s
36.00 kA/s
US-DPC Test Report
Inletteuperasire
0.5s
3s
2D kA
I kA
TI=
T77=
I
I .-
I
ITm=TI
a
I
.T
MASSP
-
E
-
ILE
2.326
2.935
AL
4.192
19.95
6
1
_ _
4.88
0.58
0.62
724
4.269
4.81
4.87
0.52
0.60
11.848
184105
2456
_
Bin
Tm
Bm/Im
n1
3s
Quench?
Tm=Tl
Nm
rAL
4.375
omE
Im
Flattop
Im/fm
22 kA
3 s
44.00 kA/s
1/s
joints.
1 kA
Quench detection sequence
sequence ?
VB5-6, VB1-2, MC02, MCOI
Quench time
I___
OUTiEr
T
s
T/s
Yes- Coils B and C initiated from
22 kA
_Quench
T'I
4.158
.5
8.316
2.000
O.5Ss
in =
_
16:29
Tune
12/13/0
40.162 gls
5.191 -n
4.375 K
m=
I
I
I
I
OTITi
TIME (a)
2.601
613
1/im
_
2.58
2.943
3.279
6865.9
1337
0.46
5.27
DIe
MASS FLOW [g/s]
INLET
10.209
1857
4.99
4.96
Inletpressure
Inlettemperatnr
2
3 cable
3 corner
4 comer
4 cable
5
6
0.54
Total inlet flow
aT=
12
T
PANCAKE
0.66
5.05
T1=
_
0.52
5.03
4.293
Wavefom
I
ACLOSS [ J]
-
4.361
4.439
Connection Single coil
Mode AC
Description Double trapezoid
n-
s
AT
PEAK
4.92
DM Shot number 308
165
Run number
zr
ouER
629.9
587
4.51
4
2.473
4 cable
5
-P
4.403
4.365
4
3 s
40.00 kA/s
No
Qwnch time
2
3 cable
3 coner
20 kA
I
10.95
1
Im
Flattop
ns
ImIr
FLOWR[g/K]
OUTin'E
NET
.5 s
7.560 T
2.000 1/s
B/nIm
Quench ?
(S)____
MASS FLW W
P
Im=
Iu
I
Tam
.
3.780 T
1/Im
Waveform
I
6.026 atm
4.37 K
Inletpressure
AC
Description Double tapezoid
Bm
TI
43.32 Rlf
Total inlet flow
Single coil
Connection
Mode
16:18
Tune
12/13)90
Do
DM Shot number 307
164
Run number
January 1992
(]
s
ACLOSS (J]
4.395
PAK
5.12
0.73
4.363
5.30
0.94
4.502
4.295
4.361
0.79
0.83
1172
867.4
2039.4
4.44
5.29
5.12
5.25
5.19
0.88
0.75
1031
1089
2120
4.264
.809
5.42
0.61
AT
2668
58166.4
51339
223
-
US-DPC Test Report
Daft
DM Shot number 309
166
Run number
January 1992
Inletpressure
Inlettemperature
Waveform
01 1
0"1T
INLT
5
2.15
3
3.4
2.35
Run number
167
4.413
4.369
4.83
4.517
4.3
4.369
X
4.283
4.2
4 .818
4.89
4.70
4.80
0.37
0.40
325
399
724
0.43
483
X
483
4.72
0.44
0.35
DMShotnumber
5.17
Dle
310
Total inlet flow
Inet pressure
Inlettemperamue
Connection Single coil
Mode AC
Description Triple trapezoid
a
a
I
MASS FLOW (g/s]
2
6
I
3s
Tm
Bm/rm
3.402 T
.5 s
6.804 T s
2.000 1/s
Im
Flattop
Tm/Im
Quench?
No
18kA
IkA
Iu=
!072ftTm=
W
-
lAL
UNET
4.4
1
10.9
3 cable
---3 coer
12.5
4 comer
4 cable
Bm
16:50
TI I
T11 TI
O-i TI TI
INLET
Tame
12/13)90
0.5 s
Im=
a
-
--
a
-
i Ti
2389
X
43.5 zh
6.074 On.
4.372 K
TI=
'1=
a
In
1182
1/Im
Waveform
s
ACLOSS [J]
AT
0.38
0.46
PEAK
4.79
4.381
20
6
AL
T
2
12.53
Quenchtime
[K]
R
LOUTEr
OUTLR
10.82
3 cable
3 comer
4 comer
4 cable
IkA
Tm=TI
MASS FLOW (g/2]
PACK
4.363
2.35
----
3.15
3.47
2.6
3 s
24.00 kAs
I
I
1--
I
I
-:.-s-
0 - li
12 kA
No
Quench ?
12kA
Im=
Iu=
In
'I
Bm/nm
1/rm
0.55s
3s
TI=
T2=
Tm
Rattop
Tm/rim
2.268 T
.5 S
4.536 TIs
2.000 1/s
Bm
43.35 P/S
6.026 aim
4.381 K
Total inlotflow
Connection Single coil
Mode AC
Description Triple trapezoid
16:39
Tune
12/1390
4
4.372
4.509
Quench time
Tl
ACLOSS [J
FLE(
PEAK
5.03
5.16
5.16
AT
0.63
0.80
0.65
2269
745
1525
----
4.294
4.99
4.362
4.438
5.11
5.07
4.27
5.00
4.809
5.37
224
s
0.69
0.74
0.63
0.73
0.56
8510
780
917
774
1691
3025
18 kA
3 a
36.00 kA/s
US-DPC Test Report
Run number
January 1992
Bm
X 9/s
5.178 ain
4.375 K
Total inlet flow
Ilet presure
Inlettemperuare
Connection Single coil
Mode AC
Description Triple tranezoid
Th3e
12/1390
Dab
DM Shot number 311
168
3.780
BIn/rm
T1=
T2=
in
T
.5 s
Fat top
7.560 T/s
im/rm
TM
1/rIm
Waveform
17:00
20 kA
3 a
40.00 kA/s
2.000 1/s
0.5 s
in=
in =
3s
Yes- Coils B and C initiated from
joints.
Quench decon sequence
Quench ?
20 kA
I1kA
VB5-6, VB3-4,VB1-2,MCO2
Tm=T1
TIME()
PANCAKE
MASS FLOW [g/s]
INLET
OLlE
x4.405
1
-
IL
Quench
5.21
AT
0.80
5.39
1.02
PEAK
4.296
5.20
4 comer
X
4.363
4cable
X
4.442
5.32
5.26
0.90
0.96
0.82
5.50
0.68
X
X
5
4.194
Run number
X
X
12/14/90
x
Total inlet flow
Inletpressure
Inlettemprature
Connection Single coil
Mode AC
Description Single triangle
X
X
DM Shot number 312Da
169
X
X
4.26
1 4.816
6
s
[J]
-ACLOSS
mAL
X
3 comer
-
EMP-RACLOSS[
F4.364
4.375 4.496
2
3 cable
ime
Waveform
BR
g/s
TM
Bm/irm
I/rm
5.953 an
4.395 K
T1=
Ss
fm=
1.5 kA
Time
Quench?
10:07
fin
0.284 T
Flat top
s
0.057 T/s Tm/rm
0.200 1/s
No
0
ieT1*q4T1*,
TIME (a)
INLE
OUTLET
I
1
MAL
4.42
Oun
ACLOSS
PEAK
AT
X
4.386
2
3 cable
3 comer
4 comer
4 cable
5
6
X
X
s
/s](
MASS FLOW
PANCAKE
Quench time
Tm=T1
X
X
X
X
4.395
4.215
4.534
4.319
4.392
4.463
4.43
0.04
X
X
X
X
X
4.299
4.845
225
J)
1.5 kA
0 s
0.30 kA/s
US-DPC Test Report
Run number
January 1992
De
DM$hotnumber 313
170
Inletutrnperatixe
Waveform
Tl=
N
OUMT1E
2
x
Quench ?
Run-number
171
[J]
X
x
X
X
X
Doe
Inletpressure
Inlet tumperature
Waveform
l1m=
lu
ITTI
ITI2TT
nTT1
12 ITITI 12
INLET
OUT
Quench?
2 sT l
o
-
xX
nLB
AL
ACLOSS [J]
K]
PEAK
AT
X
X
X
X
X
X
4 corner
4 cable
X
X
X
X
X
X
X
s
Quench ime
2
3cable
3 comer
5
6
No
1
Tm=T1
24EI
Flat top
ImIrm
4.536
2.000 1/s
I
TIME (s)
MASS FLOW g/s]
Im
2.268 T
.5 s
IkA
Iu=
I
toN,,O
M4
1/rm
2s
12kA
T2=
I
Bru
Tm
Bm/rm
10:22
0.5 s
T1=
in
Tme
12/14/90
x 2/s
6.118 an
4.397 K
Total inlet flow
SI
s
X
DM Shot number X
Connection Single coil
Mode AC
Description Ouadruple traezoid
4x
4.218
s
0.30 kA/s
No
Quench time
4.304
4.847
5
0
5s
4.539
4.324
4.397
4.468
4.398
X
X
X
X
IniIm
1.5 kA
0.200 1/s
/rtn
TEMPERATURE [KI
T
TUnRE (K]ACLOSS
MNLB
]MmAL
PEAK
AT
4.426
4.39
MASS FLOW [Ws]
Fla top
0.057 T
nm
Tm=T1
TIME (s)
3 cable
3 comer
4 comer
4 cable
'ln
Im= 1.5 kA
I
Im
0.284T
5 s
Bm
X W/s
6.098 am
4.398 K
Total inlet flow
Inlet pressure
Single coil
Mode AC
Description Sinile triangle
Connection
10:14
Tine
12/14190
__
-
X
__
226
12 kA
2 s
24.00
hA/s
US-DPC Test Report
Runnumber
172
January 1992
DM Shot number 314
Doe
Inletpressure
Ifilettemperatume
T1=
'1=
Tinm7=
1 i, 1 ,
2a
2 s
INLET
OUTLER
1
2
3 cable
10.8
3 comer
4 comer
4 cable
13.1
5
6
21.4
2.23
4.397
3.16
3.61
2.54
4.218
21.
Run number
_
173
4.1
Quench time
LOSS
ALS(J
-AC
IN AL
4.446
PEAK
4.91
AT
4.387
4.97
0.58
4.539
5.07
0.53
434
962
4.323
4.396
4.468
4.81
4.92
4.92
528
643
461
1
4.302
4.846
4.85
5.29
0.49
0.52
0.45
0.55
1547
5825
2212
12/1490
X
Tune
Bm
Tm
Bm/nn
als
5.178 atm
4.398 K
1/rm
Tl=
Im
,
0
4 1 -r
r r r - iTlI 12 iTITlI 12 iTTlI 12 uTh1iT2 gilT
TIME (s)
2as
Im=
18 kA
Quench ?
MASS FLOW [g/s]
-
INLET
OITELE
Tm=Tl
TEMPERATURE (K]
oulmEr
MM
WAL
4.426
PEAK
Quenchthms
LOSS [ J]
-AC
AT
0.78
0.99
0.82
0.86
X
X
X
X
4.389
4.538
4.324
4 comer
X
4.397
5.32
0.92
X
4cable
X
4.468
5.25
5.20
0.78
0.90
X
5.54
0.70
2
3 cable
3 comer
x
X
4.219
4.301
4.842
227
Im
Fat top
uI/Em
18 kA
2 s
36.00 kA/s
? All most OK. but Coil C
initiatedfromjoint.
ikA
5.21
5.38
5.36
5.18
1
6
3.402 T
.5 S
6.804 TIs
2.000 1/s
84-4
PANCAKE
5X
10:39
0.5S
T2=
Iu=
___
[J]
0.44
Dl
Waveform
a
0.46
Total inlet flow
Inlet pressure
Inlettemperaure
Single coil
Mode AC
Description Quadruple trapezoid
/rm
1/s
No
Quench?
Tm=T
DMShotrnumber 315
Connection
Ts
12 kA
2 s
24.00 kA/s
k
TEMPERATURE (K]
ownr
IK
OW [g/s
MASS
PANCAKE MAS FLW
Im
Flattop
12kA
II
ITlI 2 IT1 ITli 12 iTIT1I 12 iThTh12 sTli
TIME (a)
T
a
0.5s
SI=
I
ItI
10:28
2.268
.5
4.536
2.000
1/rm
Waveform
IU
4-+
Thne
Bm
T1n
Bm/Em
45.3 gMs
6.118 Sal
4.397 K
Total inletflow
Singie coil
Mode AC
Description Quadmuple trapezoid
Connection
12/14/90
X
X
US-DPC Test Report
316
DMShotnumber
174
Runnumber
January 1992
Waveform
*
S
i
4-
I
~IT1
i
T)Tih T
_
__
OU
OUITET
4.43
1210.7
4.392
3 cable
12.95
4 comer
4 cable
2.25
3.1
3.59
4.543
4.328
4.397
2.44
4.472
4.307
4.223
21
6
Run number
175
4.846
Waveform
*
.
I
I
I
0I
T;T1
T1I
TI Ti
ITlI T2 MIT
TIME (s)
INLET
2
6
0.61
5.02
0.71
5.41
0.56
2118
7
632
739
916
0.70
0.59
8110
642
_55_
3063
Thme
12/1400
44.4 gs
6.166 si.
4.401 K
Bm
Tin
BniTm
In =
11:05
3.780 T
1.75 s
2.160 T/s
0.571 i/s
l.75 s
0.5 s
Quench ?
No
20 kA
I kA
Quenchtime
Tm=T1
AC[[
-
R AL
10.6
20.9
Im=
J]
-J
2 Tli
4.401
4.222
PEAK
AT
4.389
5.10
5.22
0.67
0.83
4.539
4.325
4.396
4.47
5.23
5.06
5.19
5.14
0.69
0.73
763
884
1647
1064
828
1892
4.304
4.844
5.10
5.47
0.79
0.67
0.79
0.62 _
4.427
12.9
s
ACLOSS [J
OUI1Er
2.25
3.2
3.62
2.6
ACLOSS
0.65
De
-
110.6
3 cable
3 comer
4 comer
4 cable
5
18 kA
0.5 8
10.29 kAIs
ifs
Quench time
5.16
4.98
5.10
5.06
T1=
T2=
MASS FLOW [g/s]
PANCAK
TIs
Hat top
im/rm
No
1/Tm
I
s
C
PmEAL.
AK
AT
0.58
5.01
5.13
0.74
Total inlet flow
Inletpressure
Inlet temperatu
Connection Single coil
Mode AC
Description Quadruple trapezoid
I
mm
T
K
DM Shot number 341
SI
Bmfm
1Irm
_
__
MTR
E
MASS FLOW [g/s]
INLET
'lI
Quench ?
Tm= TI
TBM (s)
PANCAK
3.402
1.75
1.944
0.571
Bm
10:51
I
I
i
1.75 s
T1==1.5
T =
0.5 a
18 kA
Im=
1 kA
Iu =
r
S
lu
44.65 gfs
6.142 at
4.402 K
Total inletflow
Inletpressure
Inlettemperature
SIngle coil
Mode AC
Description OuadrpIe travezoid
Connection
TUne
12/14)90
Dm
228
2459
9507
3509
Im
Flat top
h/rm
20 kA
0.5 s
11.43 kA/s
January 1992
US-DPC Test Report
Run number
Connection
Mode
Desaiption
DM Shot number 342
176
Dam
Waveform
I
:
:
iTlaT2 ITI IT11 12
: :
1
Tm=T1
-
OUTLEr
INIM1AL
2
2.25
3.2
3.61
2.58
6
Run number
Connection
Mode
4.403
4.426
4.392
5.33
0.93
4.54
4.327
4.398
4.471
0.78
0.82
0.88
0.75
0.88
0.69
4.306
21
4.842
5.53
4.225
Single coil
AC
t
MASS MASSFLOWWS]
FLOW [g/s]
13.05
5
21.21
Im/inrm
11192
1216
2218
1002
4087
Tie
45.09 g/s
a-i.
Tm
Inlet temperaflnn
4.402 K
Bminn
6.118
Bm
T2=
2.8 s
3s
Im =
20 IA
(
0.5s
Tm=T1
-omr
TEMPERATURE [K]
oUTzr
Quench?
4.543
4.81
0.27
245.3
3.163
3.569
4.327
4.398
4.61
4.71
296.2
2.57
4.473
4.73
0.29
0.31
0.26
4.307
14.844
4.61
0.30
4.223
5.09
229
0.27
0.33
0.24
s
ACLOSS [J]
AT
4.402
No
J
-ALS
PEAK
4.71
4.73
Mu
11:27
Quench time
-.6AL
4.431
4.392
2.264
3 comer
4 comer
4 cable
Flat top
1948
1l/m
10.83
2
3 cable
6
OuTim
935
1013
Total inlet flow
Inlet pressure
T3=
INLET
2.8 s
1.350 Ts
0.357 1/s
2939
12/14)90
De
Wsve(XMTI=
(ImjT)t + 0.281m sin(180t/rm)
4IME
1
20 kA
0.74
DM Shot number 321
i
PANCAKE
Im
No
ACLOSS (J]
AT
Description Round-edged pulse
Waveform
3.780 T
in
Flat top
Quenchtimes
PEAK
5.17
22
177
0.571 1/s
OUTIzr
5.32
5.15
5.28
5.22
5.18
12.95
I/nn
[K]
TEMPERATURE
ULTALSS[
I
10.7
3 cable
3 comet
4 coner
4 cable
Bm/Dn
1.75 s
2.376 T/s
aTTTla
T
n1Th T2
nTI
MASS MASSFLOWWal
FLOW [g/s]
INLET
Imnm
22 kA
0.5 s
12.57 kA/s
T
4.158
'Ti
:
TIME (s)
PANCKE
11:16
Bm
TI= 1.75 a
T2= 0.5 s
0.5 SQuench?
7=
Im= 22 kA
kA
I
S
11 .4-4
:
44.65 aFs
6.166 On
4.403 K
Total inletflow
Inletpressure
Inlet teuperalre
Single coil
AC
Ouadnrule trapeoid
Te
12/14/90
840.6
541.5
3158.8
354.9
614.7
259.8
1162
1
3
s
7.14 kA/s
US-DPC Test Report
Run number
178
January 1992
DM Shot number 322
Daft
Iettemperature
Thie
(ImI/1)t + 0.28n sin(18U1/rl)
hn
TI=
=
3.5s
3 a
T3=
0.5s
Im=
11:37
T
B
4.725
'b
3.5 a
1.350 Ts
0.286 1/s
Bn/fln
1/fin
Waveform
Quench ?
fim
Flat top
hi/fin
25 kA
3 s
7.14 kAts
Im
Flat top
Tn
28 kA
3 s
7.18 kA/s
No
25kA
Tm= i
0
mTQunhtes
TIM~E t (S)
TEMPERATURE [K]
MASSFLOWWs]
MANCAK
24.389
3cbe2.22
13n.e
4 onr3.584
4cbe2.542
4384.537
4.324
4.395
4.467
3.14 1
52.84284.303
4-837
16
Run number
179
1
4.78
0.36
4.85
0.46
4.91
4.72
4.82
4.82
4.70
5.15
0.37
,0.39
0.42
0.35
0.40
0.31 -
DM Shot number 323
connction Single coil
Mode AC
Round-edited
Description
I~
~ . pulse
AC LOSS [J]
aW~/
umI
44.421
1 0
3
45.12 qgs
6.166 aim
4.398 K
Total inlet flow
Inlet pessure
Connection Single coil
Mode AC
Description Round-edied Pulse
12/14/90
Dw
TOWd inletflow
Inlet pressure
Tiettempeannn
I
_______
1157
36.
40.
48.
35.
778
4289.8
80
1555
____
12/14)90
45.35 xia
6.166 so
4.398 K
_2..
raws
But
Tin
Bmn/Fm
1/Im
11:47
5.292 T
3.9 a
1.357 TI
0.2561s
Waveform
(Im/F1)t + 0.281mn sn(180trl)
72=
T3 =
in=
3
s
0.5s
No
Quench ?
28 kA
TIEt()Tm=T1
MASS FLOW Ws
PANCAKE
-
_____timS
4.428
____4.39
2.308
3 onr13.13
4 onr3.584
4 c7l-2598
4384.54
3234.325
4.397
4.47
-
21.29
6
ACLS[J
flM
10.93
1
2
3 cable
L[KS]
EPRTR
MxJ
4.221
____14.842
4.306
4.85
0.43
___________
4.94
4.99
4.80
4.91
0.55
0.45
0.47
0.51
438.8
497.2
587.9
4.89
0.42
14.78
0.48
0.36
1
5.20
230
1425
x
93
-
2948.9
[58.
58.
X
_
__
US-DPC Test Report
Run number
180
January 1992
DM Shot number 324
Ddc
Inletptenperdue
Tne
Bm/nIm
11m
Waveform
T1=
(1m/TI)t + 0.281h sin(180tfrI)
7
.
T3=
4.2s
3s
0.5s
13:18
5.670
4.2
1.350
0.238
Bm
TM
45.2 a-s
6.190 asm
4.396 K
Total inletflow
Inlet pressure
Single coil
Mode AC
Description Round-edied pulse
Connection
12/14/90
T
s
T/s
urn
Fla top
ImIrm
30 kA
9
7.14 kA/s
1/s
No
Quench ?
30OkA
in=
0
Tm=Tl
1
M SLKE
INLER
OUmLEFr
11.03
2
.
3 cable
3 comer
4 comer
4 cable
5
13.08
4.396
4.217
21.09
6
PEAK
AT
4.414
4.89
4.385
4.99
0.48
0.61
4.534
4.322
4.394
4.465
4.301
5.04
4.85
4.97
4.94
.4.831
Run number
181
AC LOSS [J]
OUTLEr
DIAL
2.33
3.179
3.584
2.581
s
K]
MASSTEMPERATURE
PA
Quench time
4.83
5.24
499.9
524.3
1024.2
0.57
0.48
0.53
0.41
6542
1156.5
5835.7
502.3
2062
12/14190
Tne
Bm
Tm
Hm/Im
i/rm
35.74 ris
5.206 atm
4.395 K
Total inlet flow
Inletpressure
Inlettemperamre
Connection Single coil
Mode AC
Description Round-eftedpulse
0.51
0.53
Dine
DM Shot number 325
1593
13:29
5.670
2.8
2.025
0.357
T
s
In
Flattop
T/s
ImIm
30 kA
3 s
10.71 kA/s
1/s
Waveform
(Im/r1)t + 0.281m sin(180t/11)
n
-
T2
-,T3=
fm =
TIME
t
1
14.608
2.511
3.261
3.705
2.842
4.395
4.217
8.706
6
____4.835
Quenchtime
dIMAL
4.424
4.386
5.10
AT
0.68
5.34
0.96
4.533
4.32
4.393
4.466
5.42
5.25
5.57
5.45
0.89
0.93
1.18
0.98
4.3
6.94
2.64
1.64
PEAK
6.47
231
Yes- Coil C crossover tum.
Quench detection sequence
MC03, VB5-6,MC01
TEMPERATURE [K]
-OUTzr
INLEE
m OUTlEd
12.426
2
3 cable
3 comer
4 comer
4 cable
Quench?
30 kA
Tm=T1
(s)
MASS FLOW [gs]
PANCAKE
3s
0.5s
1.78
AC LOSS [J]
3046
1020
1073
2093
1514
2744
12783
1230
4900
___
s
US-DPC Test Report
Run number
January 1992
DM Shot number 326
182
Connection Single coil
Mode AC
Description Slow-ramp
Dle
Toal inlet flow
Inlet pressure
Tilettempersare
raprwmid
40.49 ds
5.208 an
4.402 K
TM
Bmh/Tm
3s
1s
I
Quench detection sequence
VB5-6.MC03,MCDI
I
Tm=T1
TIME (s)
MASS FLOW [g/s]
MANSE
INLEI GUlET
[K]
I
O[TgEr
5.12
0.70
2
4.394
5.36
0.97
4.541
5.44
0.90
1057
4.327
4.4
4.471
5.28
0.95
1113
5.60
5.48
1.20
1.01
1578
1282
4.311
4.846
7.04
6.51
2.73
9.046
2.627
3.691
2.956
7
.223
-
19.46
5
4.402
3.248
19.446
Mode
Total inlet flow
Single coil
Inlet pressure
Inlet temperature
AC
Description Slow-ram trapezoid
2260
18931
.
11641
1.66
Deft
DMShotnumber 343
183
Runnumber
Connection
4.223
Tne
12/14/90
41.801 gfs
6.074
.an
4.404 K
T1=
T2=
T3=
a
a
I
I
I
I
I
I
0
a
Im
10 s
Flat top
0.577 T/s
0.100 1/s
Tm=T1
MASS FLOW [/S]
INLET
1
2
3 cable
3 comer
4 comer
4 cable
9.551
5
20.07
6
20
IlMAL
4.434
o1ma
AC LOSS [J]
AT
PEAK
4.83
0.39
4.90
0.50
3.694
4.397
4.546
4.331
4.402
2.838
4.475
4.95
0.40
4.76 10.43
4.87
0.47
4.87
0.39
4.311
4.76
0.45
5.20
0.35
4.404
3.253
4.22
_74.284.851
No
IQuenchtime
TEMPERATURE [K]
OUT1E
2.485
12.18
Quench?
Im= 30.5kA
TIME (s)
PANCAKE
l0 s
3s
Is
13:50
5.765 T
Bm
TM
THf/Tm
1/rm
Waveform
232
s
AC LOSS [ ]
AT
1
PEAK
7.98
Quenchtime
nAL
4.426
11.99
Hattop
Im/rm
29.5 kA
3 s
3.69 kAfs
Yes- Coil C crossover tum.
Quench?
fim= 29.5 kA
3 cable
3cor
4 comar
4 cable
0.697 TIs
0.125 1s
bm
8s
Tl=
T2=
T3=
*
P
5.576 '
8s
Bm
1/Tm
Waveform
13:39
Tine
12/140
1129
415.5
474.3
889.8
574.5
1020.5
446
-
4733.3
1694
1
1
im/rm
30.5 kA
3
s
3.05 kA/s
US-DPC Test Report
DM Shot number 344
184
Run number
January 1992
Daw
Tune
41.28 g/s
6.118 aim
4.402 K
Total inltflow
Inlet pressure
Inlel tamperaiure
Single coil
Mode AC
Description Slow-ramp traperoid
Conection
12/1400
. .
-
- -
-
. . .
-
T1=
9
T2=
3
13=
T
s
5.765
9
0.641
0.111
Br
'TM
Bm/rm
Win
Waveform
14:00
T/s
fm
Flattop
Imrm
30.5 kA
3
s
3.39 kA/s
1/s
s
s
No
Quench?
Is
Im= 30.5 kA
I
to
0
I
T
TIME (s)
PANCAKE
1
MASS FLOW [g/si
-
INIXT ouTLET D
m DTAL
9.36
3 cable
3
-
2.509
3.293
--------
12.01
r3.71
4.402
2.87
T
4.42
4.391
4.539
4.94
4.326
4.397
4.47
4.76
4.87
4.86
-
4.305
4.2234.838
19.91_
O
PEAK
4.82
4.89
4.223
19.91
6
-
4.75
5.19
DM Shot number 327
Run number
185
Co~nncion
Single coil
Mode AC
Description Slow-ramp trapezoid
1
INLET
----
11.96
4 comer
4 cable
a
Im= 30.5 kA
I
I
I
I
Tm=T1
-9.6
12/14/90
Tne
14:11
INr
4.
91
-4
[K]
OUTLEr
L
PEAK
4.82
4.422
4.89
4.384
4.537
4.94
4.323
4.76
Tm
Bm/m
l/rm
8 s
0.721 T/s
0.125 1/s
s
4.395
4.467
41
4.301
4.838
AC LOSS [ J
AT
0.40
4.87
4.86
0.47
0.39
4.75
0.45
5.19
0.35T
233
1044
417.3
481.2
578.7
4S3.3
9
4606.5
0.
1032
1632
Flat top
ImIm
No
Quench?
Quenchtime
0.51
0.40
0.44
Im
5.765 T
Bmr
MPERATURE
/s]
5
6
8s
3s
Is
*
3.76
2.906
4
0.35
T3=
2.511
3431
894.2
1646
0.45
*
OUTLET
-.--
447.7
*
8.667
2
3 cable
3comer
0.39
6.142 sun
4.397 K
TIME (s)
-1
0.47
477.5
566.84
Inlet pressure
Inlettemperalure
12=
MASS FLOW
416.7
-------
40.297 pjs
T1=
PANCAE
-
1126
Total inlet flow
-
0
0.40
0.50
0.40
0.43
s
AC LOSS [IJ
AT
Daft
Waveform
I-
Quenchtime
Tm=T1
30.5 kA
3 s
3.81 kA/s
US-DPC Test Report
Run number
186
January 1992
DM Shot number 328
Daft
Single coil
Connection
Mode
Total inlet flow
40.189 is
Inlet pressure
5.215 son
AC
Inlet mperanwe
Description Slow-ramp trapezoid
4.397 K
Waveform
Lu
..
..
12/14/90
.-.
T=
12=
T3 =
7. s
3s
13
Tin =
30.5 kA
Time
14:22
Bm
Tl
5.765 T
BTnI/m
1/Im
0.769 T
0.133 I/s
7.5 s
Im
Fat top
Iinm
Ws
30.5 kA
3
s
4.07 kA/s
Yes- Coil C crossover turn.
Quench ?
Quench detection sequence
VB5-6, MC03, VB3-4,MCO1
I
0
log----T
..W
T--WMT3-0:
TIME (s)
EM
MASS FLOW [Ws]
PANCAKE
5LE INLET
R
Er
-
AL
4.422
-
8.668
2
3 cable
3 corer
4 comer
2.474----3.118
3.654
4 cable
.39
4.397
2.908
5 1942-
19.412
6 __________14.839
Run number
187
0.73
1.04
4.537----
1.00
1121
4.324
5.38
1214
4.399
5.83
5.69
1.06
1.43
1.24
8.95
4.65
3-.
7.20_
Dme
Total inletflow
Inletpressure
Inlettemperature
Im- - -
T1=
T2=
T3 =
- - - - -
]
2394
2
2335
30043
1981
1590
3571
21743
12/14/90
40.843 's
6.074 atm
4.41 K
Time
Bin
Tm
Bn/uim
1/Tm
Waveform
s
-.3
2.136
7.20
DM Shot number 329
Connection Single coil
Mode AC
Description Slow-ramptrapewoid
AC LOSS [
AT
PEAK
5.43
5.54
4.454
4.3
4
4.218
7.22
(K]
ooier
5.15
4.386
1
Quench time
Tm= T
5.576
9
0.620
0.111
14:32
T
3
TIs
1/s
Im
Hattop
Tm/rm
9
s
3s
Is
Quench?
No
Im= 29.5 kA
----
TI
-
-
T2-
4
TIME (s)
Tm=TI
TMPERATURE [K]
MASS FLOW (g/s]
PANCAKE
INLET
OUILE'
-_
~
I
1
2
3 cable
3 comer
8.933
2.528
12.05
Quench time
4.41
mAL
oLmgr
AC LOSS [ J]
AT
4.425
PEAK
4.79
4.393
4.86
0.47
4.545
4.92
0.38
387.8
447.6
0.37
1000
4.333
4.74
0.41
4 comer
3.723
4.404
4.84
0.44
530.5
4 cable
2.869
4.476
4.84
4.73
0.37
0.42
414.1
4.313
4.232
835.4
-3-.-
3.313
5
U19.86
-
5.
234
s
4324
1544
29.5 kA
3 s
3.28 kA/s
US-DPC Test Report
Run number
January 1992
Dale
DMShotnumber 330
188
Total inlet flow
Inlet pressure
Connection Single coil
Mode AC
Description Slow-ramptravezoid
Inlet temperature
I.
- .
I
'
I
'
I
I
I
14---TI
TI=
r2 =
=
9s
3s
s2
Im=
31 kA
I
Quenchtime
Tm=TI
HqT
AT
4.42
4.385
4.536
0.52
2.469
4.91
4.96
0.42
431.9
3.244
4.323
4.78
0.45
497.2
3.722
2.855
4.392
4.468
4.302
4.88
4.88
4.76
5.20
0.49
0.41
0.46
0.36
8.847
12
4 comer
4 cable
19.76
6
Runnumber
189
AL
PEAK
4.83
1
4.216
4.84
0.41
Dle
DMShotnumber 331
Inlettemperature
Waveform
-r3=
8S
3s
Is
Im =
31 kA
T1=
-2=
I
I
1123
929.1
4821.1
595.3
1064
468.7
1705
14:54
Tmnw
12/14)90
40.348 gs
5.302 arn
4.396 K
Total inlet flow
Inlet pressure
Single coil
Mode AC
Description Slow-ramp trapezoid
Connection
s
ACLOSS [J]
m
INLTINITI
3 cable
3 comer
m"/Tm
No
Quench ?
MASS FLOW [g/s]
2
Rat top
5.859
8
0.732
0.125
Bm
TM
Bm/rm
1/rm
T
s
T/s
1/s
In
Flat top
Im/Tm
Quench detection sequence
VBS-6. MC03. VB3-4,VB1-2
I
I
TIME (s)
MASS FRAW [g/TMPRTUE
1
24=B
OU=1K
K
outgzr
PEAK
Baa
9624.417
2
3 cable
3 comer
4 cable
=
2505
Quenchtime
Tm=T1
4.396
4.536
5.16
5.44
5.56
1.05
1.02
3.148
4.325
42.o47r3.68
2.911
5.40
4.399
1.08
4.454
5.84
5.68
1.44
1.23
4.299
8.82
4.52
4.835
7.22
2.39
235
7.58
[ J]
AC LOSS
AT
0.75
2401
1147
2386
1239
1995
1580
3575
21054
_
31 kA
3 s
3.88 kA/s
Yes- Coil C crossover tum.
Quench?
0
PANCKE
31 kA
3 s
3.44 kA/s
2b43O
TIME (s)
PACAKE
9 s
0.651 TIs
0.111 1/s
1/rm
Waveform
Im
5.859 T
Bm
TM
Bn/rm
40.607 als
6.098 son
4.395 K
14:43
Tune
12/14J90
29416
s
US-DPC Test Report
Run number
190
January 1992
Dle
DM Shot number 332
42.635 f/s
5.552 ain
4.379 K
Total inlet flow
Single coil
AC
Description Round-edgedpulse
Connection
Mode
Inletpressure
Tnlettemperatume
Waveform
(Imfri)t+ 0.281m sin(80tlrl)
TI =
T2=
T3=
12s
1s
1s
Im=
33 kA
15:25
Time
12/14)90
Bm/fm
1/'m
6.237
12
0.520
0.083
Quench ?
No
Bm
TM
Im
T
Flat top
s
TIs
Im/rm
33 kA
1 s
2.75 kAs
1/s
0
PANCAKE
TEMPERATURE (K]
MASS FLOW [g/s]
INTET
_OUr
OUiEF ILET INMAL
1
2
3 cable
9.535
2.638
4.379
4.4
PEAK
4.86
AT
0.46
4.366
4.94
0.57
4.517
4.98
3 comer
3.464
4.304
4.79
4 comer
4 cable
3.83
2.943
4.375
4.449
4.90
4.89
6
Run number
20.52
4.199
4.281
4.79
0.46
0.49
0.53
0.44
0.51
20.2
41994.818
5.23
0.41
Do f
DM Shot number 333
191
Total inletflow
Inlet pressure
Inlettemperature
Connection Single coil
Mode AC
Description Slow-ramp trapezoid
Waveform
*
I
I
I
I
I
NIE
OUTLET
Tm=T1
LE
AL
PEAK
4.404
5.14
0.74
4.373
5.40
1.03
4.525
4.312
4.385
4.457
5.51
5.34
5.75
5.61
8.80
0.99
1.03
1.37
1.15
4.51
7.00
2.17
6
.764
8.264
.244
Quench?
T
s
T/s
1/s
Im
Flat top
ImIrm
4.29
4.826
236
32 kA
3 s
3.56 kA/s
Yes- Coil C crossover turn.
8.26
[J]
AT
2.723
5
6.048
9
0.672
0.111
Bm
TM
BnifTm
l/rm
(K]
TM
4.387
15:36
Thne
12/14)90
Quench time
2.723
3.13
1960
VB5-6,MC03,VB3-4,VB1-2
1
.727
.816
.
Qunch detection sequence
2
3 cable
3 comer
4 comer
4 cable
1081.9
I
MASS FLOW [g/s]
-ACLOSS
511.3
570.6
669.3
530.1
I kA
lm=
TUME (s)
PANCAKE
1312
s
T--- - -=
3s
a
AC LOSS (J]
14.117 gIs
4.368 a.
4.387 K
9
TI=
s
Qench time
Tm=T1
t (S)
I'ffM
709.8
314.5
301.9
438.4
393.1
616.4
10637.7
8480
s
US-DPC Test Report
6.426
14
00/e
0.459
0.071
Bm
Tm
44.69 g/s
5.247 son
4.397 K
Total inlet flow
Inlet pressure
Inet temperatue
Single coil
Mode AC
Deacription Round-edged pulse
Conction
B
I'm
Waveform
T1=
(Im/T1)t + 0.281m sin(180tfrI)
I
1s
t (a)
13.1
2.513
-736
3.346
4.397
L
4.98
4.538
-3
4.325
5.01
0.47
524.8
581.7
_4.389
I
PEAK
4.90
4.83
0.50
3.749
4.397
4.94
0.54
4 cable
2.855
4.471
4.93
4.304
4.82
0.46
0.52
4.84
5.26
0.42
4.216
21.29
21294.1
Run number
193
DM Shot number 335
Wavefonn
IM-
---
4---NT1--
T3=
2
5987.3
1248.8
553.4
3s
1/rm
AT
4.429
5.40
6.50
0.97
4.384
4.533
4.318
4.39
7.80
9.90
10.60
3.27
5.58
6.21
6854
11996
12932
8088
2.744
5
18.795
4.223
6
18.795
4.22
9.95
_
ACLOSS (j
PEAK
8.42
11.376
rin
.75
.28
4.29
8.27
3.98
1 4.84
6.79
237
5830
2.12
4.468
1.95T
3.30 kAls
Yes- Coil C crossover turn.
Quenchime
8.42
4.401
Flat top
.
MIAL
33 kA
3 a
Quench detection sequence
VB5-6,VB3-4,MC03,MC02,MCoI
33 kA
1
2.48
3.196
3.527
Im
0.624 T /
0.100 1/s
Bnlm
2
-
6.237 T
10 a
Ben
Tm
-
OUiET
15:59
Tune
Quench 7
Tm=T_
MASS FLOW [g/s]
3 cable
3 comer
4 corner
4 cable
1
2126
2-P.4TQ-e
TIME (s)
INLET
los
Im=
a
a
1106.
695.4
38.591 g/s
4.605 atm
4.401 K
TI=
r
-7=
1506
12/14)90
Dal
ToWi inlet flow
Inlet pressure
Inlettemperame
Single coil
Mode AC
Description Slow-ramp trapezoid
Connection
J]
-106-
4 comer
5
6
s
ACLOSS
AT
0.48
0.59
rIAL
OUTLEF
4.418
3 cable
3 comer
s
2.43 kA/s
1/s
Quench time
oimzR
-
1
0.24
Iwm
34 kA
Tm=T1
MASS FLOW [g/s]
PANCAKEM
2
1
fat top
IN
i
'li
INLEr
Ts
34 kA
Ira
No
Quench?
Is
.T3=
0
T
s
U4s
T7=
in =
15:49
Tne
12/14/90
Dow
DM Shot number 334
192
Run nurnber
January 1992
18850
64419
2
21
18719
-
s
US-DPC Test Report
Inlet pressure
Inlettemperatle
Wavefor
IM-
MASS FLOW [g/WI
INLER
OUTLIE
2.377
3.066
3.431
2.594
195
Rim number
PsAK
PmE
4.92
4.408
4.542
4.323
4.393
4.484
5.06
4.88
4.99
4.98
0.52
0.56
0.60
0.50
4.87
5.28
0.57
0.44
-4.3
Total inlet flow
IMO - -
Ws]
WW [g/'s]
MASS FLOW
PANCAK
-
IN
9.591
2
6
2.482
3.222
3.504
2.548
19.72
9.7
4.39
4.211
Tm
5 s
Flat top
Bm/rm
1/Tm
4.39 K
T4=
3s
No
Quench?
T5=
5s
Im =
25 kA
20 kA
s
Quench time
1
ALS
AC LOSS [1J1
PEAK
4.64
AT
0.24
4.375
4.67
0.29
4.518
4.305
4.374
4.463
4.76
4.57
4.66
4.70
0.24
4.27
4.57
5.05
238
0.945
0.200 I/s
h/s
nr
s
31
Is
4.403
4.214.823
16:22
Tune
ann
5.673
TEMPERATURE
OUTLET[K]
riAL
6230.8
2211
Tm= T1+T2+T3
TIME (s)
1313.3
Im
4
=
741.4
571.9
4.725 T
TI=
T2=
I=
1217.5
Bm
Inlet tanperatue
*T3=
591
626.5
41.601 R/s
Inlet presUe
AC
1489
12/14,90
Dae
DM Shot number 337
Waveform
3 cable
3 comer
4 comer
4 cable
5
AT
0.49
0.64
Description Two-step trapezoid
1
s
Quenchtime
5.02
14.843
OUiLET
2.50 kA/s
No
Quench?
4.381
Single coil
INLET
lmfm
0.473 s
0.071 1/s
m1rm
ljDm
AC LOSS [ J]
INLET
4.23
19.22
.
Mode
35kA
35 kA
1 s
TENMPERLATURE [K]
8.245
3 cable
3 comer
4 comer
4 cable
Connection
Im=
Tm
-
8.4.429
2
14s
1 s
1s
Tm=T1
TMM t (a)
1
T7=
T=
(Im/rl)t+0.2msin(8OItJ1)
-T3=
Im
Fat top
6.615 T
14 s
Bm
39.385 its
5.527 a__
4.408 K
Total inletflow
Single coil
Mode AC
Description Round-edged pulse
Connecion
16:10
Tune
12/14/90
Dale
DM Shot number 336
194
Run number
January 1992
773
-
0.27
0.29
0.24
0.30
0.23
264
315
579
363
262
625
3114
1137
1
25 kA
3
s
5.00 kA/s
US-DPC Test Report
Doe
DMShotnumber 338
196
Run number
January 1992
Inlettemperature
TI= 1.6 s
3s
T2=
T3= 0.4s
3s
T4=
TS=
2s
a
IMO - -
I
SI
Im=
.
ino
Im=
U
g4TS5e
a4-g4?'2h4T3'g-T4AT
TIME )
MASS FLAW [g/s]
EINER
OUTLEr'
PANCA
----
3 comer
12.27
4 comer
4 cable
AL
197
Run number
4.385
No
[Jl
-ACLOSS
4.72
0.28
0.36
4.80
0.29
266 ,
4.68
894.1
-59-5
4.3
4.61
0.31
329
3.351
2.371
4.369
4.459
4.71
4.74
393
276
4.275
4.61
0.34
0.28
0.33
4.813
5.08
0.26
4.207
DM Shot number 339
DLe
Inlettemperature
3424.1
1266
Tune
12114/90
41.587 a/s
5.764 an
4.385 K
Total inletflow
Inlet pressure
Single coil
Mode AC
Description Two-step trapezoid
Conecdon
Bm
Tm
Bmfrm
1/Irm
Waveform
4.725
.5
9.450
2.000
16:43
T
s
Tfs
Im
Fa top
Tm/rm
1/s
T1= 0.8s
0.2s
T3
T4=
3s
TS=
Is
IMO -I
_Im=
I
Im=
Quench ?
No
25kA
20 kA
b-4T20i4IT34-T4-t 4TS0d
Tm = T+T+T3
TIME (S)
FA
NLET
OUILEr
BU
OUMF WTR
T BaAL I
PL4AK
ACLOSS [J]
AT
4.74
0.34
4.355
4.511
4.79
0.44
4.86
4.68
0.35
0.38
328
4.3
4 com3.345
4.368
4.78
4 cab2.388
4.459
4.80
462
4.274
4.816
4.66
5.11
0.41
0.34
0.39
0.30
2
3 cable
3 comer
5
12.24
2.162
2.988
4.395
19.78
1
4
239
s
Quenchtime
4.394
9.567
3 s
12.50 kA/s
AT
PmAK
4.511
Im/nm
25 kA
Quenchtimes
2.976
19.69
6
Bm/Im
Im
Rat top
25 kA
2S kA
r
T
_9.534.358
2.176
Tm
2 s
2.363 Tfs
0.500 1/s
Quwnch?
Tm=T1+T2+T3
4.396
2
3 cable
4.725 T
EMPRATURE (K]
-
I
16:33
Em
lirm
Waveform
a
41.498 P/s
5.740 inn
4.385 K
Totalinletflow
Inlet pressure
Single coil
Mode AC
Description Two-steptrapezoid
Connection
Tine
12114/90
1096
717
389
4107
803
341
1491
25 kA
3 s
50.00 kA/s
US-DPC Test Report
Description
Inletlnperature
trapezoid
Waveform
TI=
Li
T2=
-T3=
-
E0L
Bim
4.725
Tn
FBmm
1/m
4.386 K
0.4s
3s
0.3s
16:54
Te
12140
41.792 ts
5.789 atn
Total inletflow
Inlet pressure
Connection Single coil
Mode AC
Two-szep
Dow
DM Shot number 340
198
Run number
January 1992
3.5
T
S
1.350 TIs
0.286 1/s
Quench ?
In
Hat top
Tinnm
25 kA
3 s
7.14 kA/s
No
3s
T4=
TS = 0.5s
i
O~~M
i ii
iIm=
m=
25 kA
20 kA
g-,12bg4'13b'i4-T4-*.4T5*I
PANCAKE
71
MASS FLOW
MAS [K/s]
(~/1
~W
INLET
OUTLET
-ou'uzr
INLET
9.612
2
3 cable
2.25
12.39
3 coier
4 com
4 cable
4.396
2.969
3.34.369
2.428
.5
6 :::d
19.79
Rum number
199
MMALS[1
LOSS [3J]
-AC
DarIAL
4.393
4.355
PEAK
4.81
4.90
AT
0.41
4.511
4.95
4.77
0.44
0.47
467
4.3
4.459
0.51
0.42
0.47
573
463
4.277
4.88
4.88
4.75
4.81
5.16
0.35
0.55
Dame
DM Shot number 29
1422
947
480
5230
1036
1825
1
Tie
12/17)0
Bm
Tm
x P/s
2.812 sin
4.357 K
Total inlet flow
Inlet pressure
Inlet temperature
Connection Single coil
Mode AC
Description Single triangle
a
Quenchtime
Tm=T1+TT3
TIME ()
Bm/Fm
1/rm
10:05
0.284 T
S
0.057 T/s
0.200 1/s
Im
Flattop
Imnm
Waveform
Im =
1.5 kA
Quench?
No
0
TIME (s)
Quench tae
Tm=TI
COS
___] TEMPERATURE [K]
MAS
PANCAE
MASS FLO
FLOW [gI___o/s]A
INLET
I
OUiTET
IAL
IR
xX
PEAK
4.34
~
AT
4.34
X
X
2
3 cable
3 comer
4 comer
4cable
X
6
X
X
X
X
X
4.357
X
X
X
X
X
EX
4.177
x
5.27
240
5.27
s
J
3
1.5 kA
0 s
0.30 kA/s
US-DPC Test Report
January 1992
DM Shot mmber 30
200
Run number
45
Totalinletflow
Inlet pressure
Inlet temperare
Connection Single coil
Mode AC
Description Single triangle
12/17/90
Date
gs
2.763 agn
4.365 K
0.284
5
0.057
0.200
Bm
TM
Bt/fm
1/Fm
Waveform
T1=
58
I-m=
1.5kA
10:15
Tae
T
S
TM
in
Flat top
Tnt/rn
1.5 kA
s
0.30 kA/s
1/s
No
Quand?
0TIME (s)
iit
Tm=TI
w
m=TIQuench
MASS FLOW [g/s]
PANCAKEO
INLET
-
OUFT
LEr
[
r
PEAK
lMAL
AT
4.349
4.349
2
x
4.307
4.307
----
4.365
4 corner
b
5
4.185
_-
J]
ACLOSS
x
3 comer
s
EMALTSRE
1
--
time
-
x
x
4.342
4.342
x
4.237
4.237
6
DM Shot nuiber 31
201
Run number
Dete
Total inlet flow
Inletpressure
Inlet tmnperaure
Connection Single coil
Mode AC
Description Single trapezoid
4.347
I
4.347
1.000
Bm
Tm
Bm/rm
49.87 als
1.852 aun
4.357 K
1/rm
Waveform
a
TIme
12/17/90
-
3s
T2=
=
IIIm
T
s
T/s
1/s
Im
Flattop
Im/rm
Quenc ?
Yes- Coil C crossover turn.
23 kA
Quench detection sequence
MC03, VB3-4, MC01
;*T1I
O
n
I
TIME (s)
Tm=T1
1
2
INLET
6
Sr
4.342
4.771
10.32
4.301
4.850
2.3
14.26
25.29
1.09
ACLOSS (J]
10.32
4 comer
4 cable
5
OUTLET
O
AT
0.429
0.549
3 cable
3 comer
Quenchtime
[]s]
MASS FLOW
PANCAKE
M
4.357
DiMAL
PEAK
2082
4.453
4.927
0.474
768.7
3
4.237
4.736
0.499
673.2
3.05
2.35
4.304
4.396
4.860
-;--I
4.862
0.556
0.466
792.3
.2
4.209
4.905
0.696
4.763
5.217
0.454
4.177
-
23 kA
3 s
23.00 kA/s
Is
T1=
-
10:24
241
1441.9
9066.4
1461.5
4081
9
US-DPC Test Report
DM Shot minber 32
202
Run number
January 1992
Dde
Waveform
'in--
I
Iii
-M
I S
fin
Flat top
Bma/fIn
4.158 T
Inflm
1/rn
1.000 1/s
T=
T2=
3s
Im =
22 kA
4.158 T
Bm
43.358 sfs
2.763 atm
4.361 K
Totalinletflow
Inlet pressure
Inlettmnpersture
Singlecoil
Mode AC
Description Single trapezoid
Connection
ime 10:36
12/17/90
22 kA
3 s
22.00 kA's
Is
No
Quend?
0
TIME (s)
Tm=T1
-ACLSE]
MNK r OiLET
1
RI
NAL
2.331
3.227
3.338
2.434
12.83
5
20.88
6
-
4.454
4.238
4.305
4.398
211
4.
4.698
4.500
4.634
4.488
0.244
0.262
0.282
0.236
0.277
4.765
4.992
0.227
-81
4.587
Date
Total inlet flow
Inletpressure
Inletterpersture
Connection Single coil
Mode AC
Description Sineletrapezoid
Izi=
I
S=
INE
MAS
FLOW
3 comer
4 comer
[/9)
FLW
[g/s]
OUEl
2.288
16.614
-
5
6
1354
10:46
Tune
12/17/90
T
4.347
Bm
Tm
Bm/Em
1
S
4.347 T/s
hm
Flattop
hn/rm
O
4.357
AL I
Er
PEAK
4.331
4.772
4.291
4.860
1.000 1/s
Yes- Coil C crossover turn.
Quench ?
23kA
23Quench
detection sequence
MC03,VB3-4,MCO1
Quench time
A
0.441
0.569
4.950
4.757
0.500
0.524
808.7
4.233
3.167
4.299
4.885
0.586
4.391
4.206
4.890
4.997
0.499
0.791
889.9
5.305
0.547
4.177
_
.174.758
242
J]
2623
4.45
_2_5
1.09
OSCi
ACLOSS
AT
3.063
12.52
23 kA
3 s
23.00 kA/s
Is
--
-ET
2.585
4 cable
.
TEMPERATURE [M
12.384
3 cable
3762.3
402
316.1
3s
Tm=T1
1
2
702.8
355
T1
T2
TIME (s)
MASS
347.8
41.85 ts
1.858 an
4.357 K
Tl=
T2=
hm--
;*T1
987.4
1/Em
Waveform
PANCAKE
0.258
0.307
DM Shot number 33
203
Run nunber
4.361
-
AT
PEAK
4.605
4.607
4.3
2
AC LOSS [ J]
OUTnrr
4.347
9.648
3 cable
3 corner
4 corner
4 cable
s
TEMPERATURE [K]
MASSROW g/sl
MASS FLOW [g/s]
PACK
Quench time
1543.9
735.2
795.7
9306.5
1685.6
3454
S
US-DPC Test Report
DM Shot number 34
204
Run number
January 1992
Die
42.833 gfs
1.897 asm
4.355 K
Total inlet flow
Inlet pressure
Inlet temperstute
Connection Single coil
Mode AC
Description Miss shot
12/17)90
Tne
-
Bm
11:02
T
s
Tm
T/r
Bm/rM
Tin
Flat top
Im/rm
kA
s
kA/s
1/s
1/rM
Waveform
Qunch 7
No
Quench time
TAEATR
MASS FLOW (g/s]
P
OUIEr
HNqM
9.433
2
3 cable
3 comer
4 corer
4 cable
5
2.249
12.67
4.355
C
PEAK
ACLOSS [J]
AT
4.348
4.535
0.187
4.298
4.526
0.228
686
4.45
4.632
4.430
0.182
0.197
229
260
489
4.233
3.293
2.662
4.298
4.393
4.204
4.761
4.511
4.570
4.417
4.932
0.213
0.177
0.213
0.171
293
538
De
12/17/90
4.175
W
205
oUnzr
3.19
20.73
Run number
MAL
24
DM Shot number 35
Total inletflow
Inletpressure
Connection Single coil
Mode AC
Description Single trapezoid
Inlet temperature
Waveform
T1=
IM
I
s
2726
245
1013
42.991 f/s
2.787 am
Time
Bm
Tm
Bm/fm
l/rm
4.352 K
11:24
3.780 T
1 s
3.780 Tfs
1.000 1/s
Is
T2=
13s
Im=
20kA
Quench ?
No
0
TIME (s)
Tm=T
Quench times
MASS FLOW [gs[K]
PANCAK
RNX-
OUIflr
9.521
2
3 cable
3 comer
4 comer
12.67
4 cable
5
6
20.8
2.282
3.165
4.352
3.282
2.655
4.172
ACLOSS [J
r
At
4.332
4.292
PEAK
4.580
AT
0.248
4.571
0.279
4.447
4.23-
4.664
4.464
-
0.217
0.234
-31
283
313
596
4.295
-65
4.39
4.549
4.601
0.254
355
287
642
4.203
4.752
4.452
4.965
0.249
0.213
243
-
0.211
870
1210
3318
Im
Flattop
Im/rnm
20 kA
13 s
20.00 kA/s
US-DPC Test Report
January 1992
DM Shot number 36
Run number
206
Connection
Single coil
42.65
Total inlet flow
Inlet pressure
Inlet temperatue
AC
Mode
Dte
Description Trapezoid with rivle on flattoo
Tmuplu
II
0 0iT1
AiI-n
T3-4P
T1ME
(3)
'
12
1/s
Tm=Ti
s
uech tne
ACLOSS [J]
ImIAL
4.338
4.294
4.635
0.297
4.650
0.356
4.448
4.231
4.728
4.532
0.280
0.301
324
394
718
0.327
449
812
3.34
4.295
4.622
4 cable
2.62
4.391
4.663
4.201
4.755
4.521
5.008
4.351
4.168
6
AT
PEAK
4 comer
1088
De
1455
Tame
12/17/90
But
Tn
42.75 xfs
2.787 -so
4.348 K
Totalinletflow
Inlet pressure
Inlet empertlue
4073
363
0.272
0.320
0.253 1
DM Shot number 37
Connection Single coil
Mode AC
Description Trapezoid with ripple on flattop
B/im
M/m
Waveform
Is
Isumi?
111
TI=
17
1
f Hz Sinusoidal ripple
TMrpH
p (Aznplitule Ta)
I
Im=
B'
Ia=
Quench 7
11:46
3.780 T
1s
3.780 T/s
1.000 1/s
Im
Flat top
Im/lm
N
No
20 kA
700 A
f= 6.5 Hz
0
(0TF-sh O
72
-T3--ba.h
,TWM 61)
Tmn=T6IH
DaLm
OUTEr
1
72
MASSFLOWWil
MASS FLOW
[Ws]
PANCAKE
-OTE
TEMPERATURE [K]
CLS
-BAL
4.332
4.905
AT
0.573
2
4.288
4.992
0.704
4.445
5.025
4.228
4.291
4.840
4.960
0.580
0.612
0.669
1143
884
1042
4.388
4.199
4.945
4.840
0.557
0.641
842
4.752
5.250
0.498
3 cable
2.15
3 comer
3.22
4 corner
4 cable
3.33
4.349
2.63
5
20.5
6
21.45
4.167
unhtime
s
3
ACLOSS [J]
1
IX
s
20.00 kA/s
6.5 Hz
2.1
3.22
207
bnurm
20 kA
3 cable
3 co1er
Run number
Flattop
20 kA
[K]
9.6
9.
20.41
S
T/s
Im
No
Quench?
1
MASSTEMPERATURE
MSAW-AKE
INLET oEMr
LM
2
T
300 A
f=
iT
11:35
Is
I=
mii
TaI=
4
TM
Bm/rm
l1m
i
=
II
3.780
1
3.780
1.000
Bm
4.351 K
TI=
ii
g/s
2.787
Waveform
f Hz Sinusoidal ripple
Ta)
Tine
1217/90
PEAK
244
2534
2027
9566
3121
20 kA
s
20.00 kA/s
US-DPC Test Report
January 1992
DM Shot number 38
Run number
208
Coectio
Single coil
Dams
Mode AC
Description Single trapezoid
Waveform
M
Quench ?
Tm=T1
MASS FLOW [W/s]
MASSAK LOOau
No
Quench time
NAL
n
AT
PEAK
4.376
4.670
0.294
2
4.343
4.735
0.392
4.505
4.291
4.36
4.451
4.269
4.817
4.630
4.725
4.751
4.620
0.312
0.339
289.1
338.9
628
0.365
0.300
0.351
408.1
301.7
709.8
4.804
5.077
0.273
9
2.193
3.041
3.472
2.479
12.78
5
4.368
20.76
20741
6
Run number
DM Shot mnber 39
209
Dte
Inlet pressure
Inlet temperailre
.T-
TIME (5)
20.31
6
4.536
1
4.536
1.000
Bm
TM
BI/Tn
T
U
2.353
3.049
3.521
2.595
4.367
4.187
T/s
TIn
Flat top
Tm/rm
24 kA
3 s
24.00 kA/s
1/s
MC03, VB5-6,MCO1
QMCh time
ACLOSS [J
0.526
4.337
4.505
4.289
4.358
4.45
5.065
0.728
5.150
4.980
5.175
5.123
5.800
0.645
0.691
0.817
0.673
1.532
5.710
245
1.09
AT
4.910
4.805
T
3
Quench detection sequence
4.384
4.268
13:28
Yes- Coil C crossover turn.
Quench ?
=
TEMPACALOSSK]
r
PEAK
INLE
mAL
10.04
5
Time
12/17/90
24kA
Tm=T1
MASS FLOW [g/s]
PANCAKO
12.93
3s
Iin=
1 7 -OO
5*T
2
3 cable
3 comer
4 comer
4 cable
1357
is
T1=
2=
*
*
*
E
3661.2
1/rm
Waveform
T
966.4
43.28 g/s
5.106 an
4.367 K
Total inlet flow
Single coil
Mode AC
Description Single trapezoid
Cormection
s
AC LOSS [J]
r
OUTLET
1
3 cable
3 corner
4 corner
4 cable
23.00 MA
23 kA
TRME (s)
INLET
/m
is
3s
IIz=
I
Flat top
4.347 s
1.000 1/s
Bm/rm
l/nn
4.368 K
TI=
T2=
-
1s
23 kA
3 s
In
4.347 T
Bm
TIn
43.268 s/s
6.026 on,
Totalinletflow
Inletpressure
Inlettaperture
13:18
Tune
12117/90
0.905
1936
695.2
706.5
940.8
739
1401.7
9940.5
1679.8
4923
s
US-DPC Test Report
DM Shot numiber 40
210
Run number
January 1992
Doe
Inletpressure
l/rm
T1=
Ia.-
Im=
ii
TIME (a)
1
2
3 cable
3 comer
4 cornr
4 cable
6
-
OUEF RumET
10.4
AL
4.392
*
4.363
-.9
3.32
3.8
-.35
4.311
4.383
*
0.235
0.189
4.506
21.6
4.14
4.816
5.005
Date
DM Shot mnmber 69
Im=
TIME (a)
'
Brn/Tm
10.44
2
3 cable
3 comr
4 corn
-.54
4 cable
5
6
21.72
Quendi ?
ACLOSS (J]
NrTAL
4.383
4.352
4.362
PEAK
4.635
4.660
AT
0.252
0.308
4.740
4.546
4.740
0.236
- 3.798
-. 3
4.38
4.633
0.253
-4.182
4.277
4.554
14.811
5.036
-
No
a
4.31
1
*
*
1
20 kA
3 a
20.00 kA/s
20kA
3.349
8.382
In/rm
Tm=T1
WoUnEr
OUrLET I
INLBT
Tm
Flat top
Ia
MASS FLOW [g/s]
MASSAKEF
13:51
3.780 T
1 a
3.780 T/s
1.000 1/s
Bm
3s
I
Tam
12/17/90
1/n
Tl=
-T2=
-
40.542 gs
6.098 am
4.362 K
Total inletflow
Inlet pressure
Inlet temporture
Waveform
ACLOSS [J]
0.195
4.590
4.690
4.489
4.572
4.628
4.271
I
4.00 kA/
No
Quench ?
AT
- 0.233
4.690
0.178
0.189
4.628
4.184
211
Flattop
ImVrm
20kA
PEAK
4.587
21.6
Connection Single coil
Mode AC
Description Single trapezoid
I
3s
[W
ThWERATURE
izACOS[J
4.357
Run number
5 s
0.756 Ts
0.200 1/s
20 kA
3 s
Tm=TQ
MMSfco Egsi
MASS FLOW
[gs]
8.3
m
3.780 T
5s
T7=
INLET
Bmxfm
4.363 K
InlCtteDperure
Wavefonn
PANCAKE
Bat
Tm
40.3 Rls
6.098 ain
Total inlet flow
Connection Single coil
Mode AC
Description Singletrapezoid
13:41
Thne
12/1790
4.677
246
4.677
0.277
0.225
761.2
?
246.8
246.8
1
294.2
7
294.2
1078
2380.2
-1
11
1
i
January 1992
US-DPC Test Report
DM Shot mmber 70
212
Run number
Dam
Inlet tempergue
Single trapezoid
Descuiption
40.91 e/s
6.098 an
Totalinletflow
lnletpresmure
Comection Singlecoil
Mode AC
4.
Tl=
12=
Tm.--.
0 !, * 1.
MASS FLOW g/s]
__K
T/s
O17LEr
-.58
3.315
3.796
-.38
8.49
INIUAL
Quench ?
1/s
No
-1
-
AC LOSS [ J]
4.692
0.309
4.730
0.380
4.795
4.605
4.696
4.728
4.795
0.2%
?
312.2
312.2
0.316
4.728
371
7
371
4.606
0.332
5.076
0.264
*
*
4.274
4.812
DM Shot number 71
Run number
213
Connection
Mode
Single coil
Derpion
Sinule trapezoid
Die
%7.6
2967.8
1317
12/17/90
40.656 g/
6.074 atrn
Total inlet flow
Inlet ressure
AC
Inlet tnperaum
4.361
Time 14:12
Bra
TMn
Bm/Fm
K
1/rm
WaveformT=
s
AT
PEAK
4.35
4.309
4.38
.-
Quenchtime
4.383
4.361
4.18
21.85
3.780 T
.3 s
12.600 T/
3.333 U/s
Ink
Flat top
Im/rm
h
0.3
Qumcdi?
=
IIIm
No
20OkA
0
TIME (s)
PACK
1
FLOW [g/31
INME ouT=~
Tm=T1
TNI]AUEI
MASS
R4
10.52
2
3 cable
3 comer
-. 46
8.366
4.361
3.367
3.821
-.21
4 cormer
4 cable
5
20 kA
3 s
40.00 kA/s
2DOkA
OUTLrD(K]
-
10.57
5
6
3s
Tm=Tl
_
NLEr
3 cable
3 comer
4 comer
4 cable
S
Im
Flat top
Im/flm
I"
TIME (s)
1
2
TIM
Bm/rm
K
T
0.Ss
fin
T=
K
3.780
.5
7.560
2.000
Bin
1/frm
Waveform
PA
Tune 14:02
12/17190
.
-
4.309
4.381
*
4.181
21.77
DN AL
4.389
4.353
OUTMr
PEAK
Quench time
AC LOSS [ J]
AT
4.755
4.808
0.366
0.455
4.8
4.8w
4.675
4.772
4.790
0.366
0.391
4.790
0.393
0.305
4.276
4.669
4.815
5.120
247
s
1181
?
387.3
37.3
546.8
546.8
3671.1
?
1556
20 kA
3
s
66.67 kA/s
US-DPC Test Report
Dfe
DM Shot nmiber 72
214
Run number
January 1992
Waveform
4.347 T
Bin
Tin
Bm/rm
40.632 g/s
6.098 a
4.365 K
Total inlet flow
Inlet pressure
Inlet temperwure
Comection Single coil
Mode AC
Description Sinle trapezoid
1 s
4.347 T
1.0001/s
1rm
Tl=
is
Im=
23 kA
14:23
Time
12/17/90
Im
Flat top
hs
Im/Tm
23 kA
3 s
23.00 kA/s
No
S7Quemdi?
ii
0n
TIME (s)
Tm=T1
MASS FLOW [/si
1
2
3 cable
10.48
3 corner
8.402
-
OUILEr
INLET
L
4 corner
4 cable
-.31
*
4.31
4.381
*
4.279
5
6
4.815
21.75
4.738
4.617
5.083
0.338
324.1
324.1
I
3021.6
_
384.2
?
384.2
1343
0.268
Tune 14:38
12/17/90
3.780 T
.3 s
12600 T/s
3.333 1/s
BM
Tm
Bmfrm
l/rm
41.62 g/h
6.098 aurn
4.362 K
0.3s
3s
?
No
20kA
ITV
T2
Tm=T1
OUTlET
XlLF[K]
TEMPERATURE
2.461
AL
NI
10.28
4.362
3.227
0
2.689
21.34
0.324
4.738
970.3
7
3Quenich
MASS
[g/]
FLO Ws]
PANCAE
MAS FLOW
5
6
4.705
Inletpressure
lWet temperature
TIME (s)
4 cable
4.614
4.801
0.304
Im=
ITI
3 comer
4 coner
4.801
Tl=
T2=
0
1
2
3 cable
0.303
0.382
De
SN
I
-
4.691
4.736
Total inletflow
Connection Single coil
Mode AC
Description Sinple traezoid
Waveform
Tm..--
AT
DM Shot umber 73
215
Runnumber
PEAK
s
[J]
ACLOSS
-]
ALr
4.388
4.354
4.365
3.372
3.824
Quench time
4186
-
PEAK
ALS
LS
-A
AT
4.385
4.750
0.365
4.348
4.508
4.810
0.462
4.875
4.695
0.367
0.399
401.1
410.7
811.8
4.296
4.779
4.779
?
391.7
4.456
4.795
4.273
4.669
0.339
0.396
4.81
5.117
0.307
248
J3
1192
3962.5
391.7
1567
Im
Flat top
Irn/lm
20 kA
3 s
66.67 kA/s
January 1992
US-DPC Test Report
Total inlt flow
Conection Single coil
Mode AC
Description Singletrapezoid
Inletpressure
Inlet npervu ra
T1=
T2=
Tm.--
lm=
TIME (s)
Quench?
m=TIQuench
AC LOSS [ J]
4.383
4.686
4.735
4.810
0.385
0.301
293.2
6343
9879
4.35
4.509
4.297
4.626
4.710
4.740
0.329
4.710
0.278
0.339
0.269
341.1
7
297
2
Dae
12117/90
MLEAL
4.365
2.316
3.193
.098
2.605
*
4.462
4.187
21.26
PEAK
4.613
4.274
4.809
5.078
DM Shot mmber 75
217
Tomalinletflow
Inletpressure
Singlecoil
Mode AC
Description Two-step trapezoid
Connection
nlettemperaixe
T2=
T4=
Tn== 5
Im=
ino =
" T3 We 0- T4--
T2
3s
14:59
5.670
5
1.134
0.200
T
Im
s
Flattop
Im/rm
Bm
TM
Bm1Im
T/s
30 kA
3 s
6.00 kA/s
1/s
-
0
NIET
A
9.33
2
12.19
4.364
20.43
-
-
1
n
sequence
VBS-6,MC03,VB3-4,VB1-2
30 kA
20 kA
Quench time
PEAK
AT
4.375
4.341
5.100
0.725
5.360
1.019
4.5
4.288
4.272
4.447
5.479
5.315
5.650
5.530
7.220
0.979
1.027
1.378
1.083
2.955
6.570
1.769
4.4265
4.801
249
7.86
ACLOSS [J]
-
Er
2.2
3
3.47
2.46
Yes- Coil C crossover turn.
Quend ?
3s
ssdetec
Tm=T1+T2+T3
MASSTEMPERATURE
OKE-omr
M
-I
Ime
-r1T5.b'l
TIME (s)
6
1340
41.95 g/s
5.096 an
4.364 K
T3= 1.67s
5
3242.1
T1= 3 . 33 s
bm - - - - - - -
3 cable
3 corner
4 comer
4 cable
970.8
1/rm
Waveform
1
s
AC LOSS (5]
5
PA
time
10.24
Run number
23 kA
3 s
23.00 kA/s
No
AT
0.303
1
In
Flat top
bnrm
23kA
Tm=TT1
TD&E(a)
MASS FLOW [gls]
PANCAKEM"W
UCIN r
OUTET
6
'TIn
Bn/Tm
is
3s
14:49
4.347 T
1s
4.347 T/s
1.000 1/s
Bm
41.379 s/s
6.050 a
4.365 K
1/YIn
WavefomT
2
3 cable
3 comer
4 comer
4 cable
Tine
12/17/90
Dae
DM Shot nurber 74
216
Run nunber
2668
986.1
1142
2128.1
-
1661
2959
1197
14046
21700.1
s
US-DPC Test Report
Run number
January 1992
DM Shot number 84
218
Date
Toalinletflow
TNletpressMre
Inletmpuersure
Comection Single coil
Mode AC
Description Two-smp trapezoid
Waveforn
Ihi=
T____
1
125
3.08
;
3.-49
2.49
4.365
5
6
Run number
-.
5
219
4.-8
4.265
4.804
6
Quenchtime 7.%
7.770
3.505
6.750
1.946
25508
25-176089
1796
1295
17427
12/17/90
43.044 RA
5.929 asm
4.376 K
Time
Bm
Tm
Bn%/Tm
T1=
T2=
T3=
T4=
T5=
Is
Is
Is
3s
is
Tm=
Imo=
27kA
Quench ?
DWTAL
4.198
4.389
4.351
4.51
5.103
2
2.552
0.500
15:38
Im
T
Flattop
s
TIs Tm/rm
1/s
No
22kA
Tm= T1+T2+T3
TEMPERATURE [K]
2.223
4.376
3.0284.299
3.458
2.45
9
2734
1039
1217
ACLOSS [J]
-onzr
-
20.55
VB5-6,MC03,VB3-4,VBl-2
1/rm
MASS FLOW [g/s]
[
MASSAK R
INLET OUTLET
5
5.117
5.380
5.500
5.340
5.725
5.598
AT
0.740
1.039
1.000
1.050
1.368
1.151
PEAK
Total inlet flow
Inletpressure
Inlet temperature
MT-,nT3n"-T4-Wr*TSOmi
TIME (s)
12.741
miTm
1/s
Quench detection sequence
30kA
Dale
Waveform
LM --------
2
3 cable
3 corner
4 corner
4 cable
TIs
30 kA
3 s
6.00 kA/s
AC LOSS [ J]
DIAL
4.377
4.341
4.5
4.29
-.
4.357
4.447
DM Shot number 76
Connection Single coil
Mode AC
Description Two-step trapezoid
1
Tm
Flattop
Yes- Coil C crossover turn.
Quendi ?
Tm=T1+T2+T3
MASS FLOW [/s]]
MASS RO-ou'rtr
aINLE
OUT
Dm
12.52
T
s
TinoT42Tk
TIME (s)
2
3 cable
3 corner
4 comer
4 cable
5.13 aim
4.365 K
15:26
5.670
5
1.134
0.200
Bm
Tn
Bm/rm
I/Im
/s
TI= 3.67 s
T2=
3s
T3 = 1.33s
T4=
3s
TS =
5s
bn - - - - - - -
0T
42.4
Tne
12/17/90
PEAK
4.755
4.826
AT
0.366
0.475
4.368
4.891
4.710
4.810
4.456
4.822
4.276
4.819
4.701
0.366
0.425
5.141
0.322_
250
0.381
0.411
0.42
1196
367.1
420.9
788
507.6
883.9
4530.9
376.3
1663
27 kA
3 s
13.50 kA/s
US-DPC Test Report
Run number
Co
220
January 1992
DM Shotnmber 77
D1e
Totalinletflow
Inlet pressure
Inletternperamse
tion Single coil
Mode AC
Descriptim Two-step travezoid
12/17/90
Tue
1/rm
Waveform
TI=
T2=
hT.------o
T3=
T4=
ST5=
I
I
Into =
TIME (s)
MASS
P
INET
OULET
irAL
2.91
1
2
3 cable
.68
3 corn
.
4 comer
4 cable
4.367
4.381
5.137
4.343
5.400
221
Connection
Single coil
5.530
1.028
5.364
335.2
1.074
303.5.
.81
.71
4.36
4.45
5.775
5.640
1.415
1.190
434.9
402.1
4.266
14.804
8.130
3.864
2.066
Di.
Total inlet flow
Imo
0
I
I
I
oUTEr
11s
f1m=
30 kA
TDUMAL
OU1M
9.753
4.394
PEAK
4.818
2
9.753
4.35
4.899
AT
0.424
0.549
4.509
4.296
4.365
4.454
4.273
4.950
4.773
4.877
4.880
4.763
0.441
0.477
0.512
0.426
0.490
4.82
5.190
0.370
.
5
6
.649
2.267
3.036
3.464
2.457
5.670 T
TIM
2.6 s
2.181 T s
0.385 1/s
Bm/In
4.37
Qunch 7
Im
Flattop
Tm/Tm
No
251
s
Quench time
ACLOSS[[]
ACLOSS [J]
1
3 cable
3 corn
4 comer
4 cable
Bn
22 kA
T1(
m
15:59
Is
Tm = TI+T2+T3
MASS FLOW Ws]
INLEF
4.37 K
T4=
T5=
Iin=
TIME (s)
PANCAKE
Tum
12/17)90
/s
5.910 agn
T1=
Is
T2=
Is
T3= 1.6s
IM.- - - - - - -
8294.2
836.9
1/rm
Waveform
I
638.7
5920
43.143
Inletpressue
Inlettenpeature
Mode AC
Description Two-step trapezoid
s
898.6
4.29
6.870
2.91
ACLOSS ( J]
AT
0.756
1.057
DM Shotnumber 78
Run number
Quench time
4.502
4.189
iTm/Tm
1/s
Qumach detection sequence
MC03,VB5-6,VB1-ZVB3-4,MCO1
.75
6.13
5
6
Is
3
22kA
ouTnzr
PEAK
Flat top
30 kA
3 s
15.00 kA/s
Yes- Coil C crossover tum.
Quench?
T
MLT
TI
Tm
3s
Tm= T1+T2+T3
FLOW [g/s]
MASCAE
Is
Is
Is
T
s
5.670
2
2.835
0.500
Bm
TM
Bm/Tm
12.58 n/s
5.086 itn
4.367 K
15:48
1397
444.9
488.7
588.4
443.4
933.6
1
1913
5275.4
30 kA
3 s
11.54 kA/s
US-DPC Test Report
January 1992
Total inletflow
Connection Single coil
Mode AC
Description Two-steptrapezoid
42.604 2/s
Tm
4.367 K
BEflm
1/rIm
Waveform
is
Is
T3= 1.6s
T2=
I
I
I
i~r
2
T
Ils
I=
3o kA
-EPRT
R
2
4.907
0.564
4.503
4.291
4.359
4.45
4.267
4.952
4.775
4.878
4.881
4.757
5.190
0.449
0.484
450
0.519
0.431
0.490
604.9
462.4
OUiLET
-
2.267
2.984
3.433
2.502
12-57
4.367
5
4.809
4.188
20.58
DM Shot number 80
223
AT
0.445
0.381
1410
951
501
5391.3
1963
/
of Hz Sinusoidal ripple
(Ainpijine Is
T1=
7T2
(AT3=
I
Is
Is
1.6s
i ei ei
II
O;T.3
12
MASS
1
2
3 cable
12.39
3 comer
15.9
4
1o.er
5
6
.71T=
TM~ TI1T2+T3
iImo=
II
TIME (s)
T4
FLOW
MSFLWE
Rm
I
I
T23
[gs]K]
OIEM mm
miAL
4.385
OUnEr
PEAK
5.102
Bm/Im
Quendi 7
5.460
3.03
4.291
5.300
3.49
4.36
5.650
2.72
4.45
5.530
4.263
4.806
7.440
0.957
1.009
1.290
1.080
3.177
6.620
1.814
4.369
4.189
10
1
252
MC03,VB5-6,VB1-2,MCOI
Quench time
3.64
0.717
1.012
Im/rm
Quench detection sequence
AC LOSS [J]
5.355
Flat top
3622
1126
2265
1139
16590
1677
1370
11 s
11.15 kA/s
Yes- Coil C crossover turn.
AT
4.343
4.503
2.46
2.6 s
2.108 T/s
0.385 1/s
1/rm
is
T5=
9s
Im = 29 kA
22 kA
I = 400 A
f= 10 Hz
ii
5.481 T
Bin
TM
37.88 g/s
5.078 wn
4.368 K
T4=
IMO
Thne 16:22
12/17/90
nat top
Waveform
1067.3
T_
Dife
Total inletflow
Connection Single coil
Inletpressure
Mode AC
Description Two-se trammid with rIPe on Inlettemperature
4 cable
29 kA
ACLOSS [3
-
4.343
-
m
1/s
Quench tim
1
P
11 s
11.54 kA/s
Is
On-r
nAL I PEAK
4.832
4.387
-
INLET
Runnumber
30 kA
No
Quedi 7
T4=
TS=
Tm = T1+T2+T3
MASS FLOW [g/s]
6
T/s
IM
Flattop
Tm/rm
TS
(s)
TIME
3 cable
3 comer
4 comer
4 cable
T
s
Tl=
--------
PANCAKE
5.670
2.6
2.181
0.385
Bm
5.977
Inletpressure
Inlettmperaturm
16:10
Tune
12/17/90
Doe
DM Shot number 79
222
Run number
7656
_____j
a
US-DPC Test Report
Run number
January 1992
224
DM Shotiumber 81
Doe
41.27 xls
5.929 anm
4.371 K
Total inlet flow
Conmection Single coil
Inletpressure
Mode AC
Description Two-sttr ezoidwihipleon Inlettmpertuxe
lattop
Waveforn
TM
f Hz Sinusoidal ripple
0( (Amapliwud Ta)
..
hno -
29
f=
I
T
1
T
IME
MASS FLOW
[g/s]
(s
M
TURE M]
OUTzrZ
PEAK
4.846
4.384
12.27
4.348
4.508
4.296
4.362
4.451
4.802
4.910
4.907
0.477
0.506
0.548
0.456
4.27
4.793
0.523
4.81
5.210
0.400
OUTLET
2.232
2.971
3.472
2.523
I~ltA
4.371
4.19
20.16
4.942
4.985
Conection" Single coil
Mode AC
Description Two-step
raezoid
flat top
Total inlet flow
Inlet pressure
withripple on Inlet tenperature
f Hz Sinusoidal ripple
(Amplitude Ta)
_
I
II
II
Io
I
T1=
T2=
T3=
T4=
TS =
Im=
tmo=
f=
Ti-
T4
T4TME
Is
Is
1.6s
'NLqj
OUTLLT
7.529
2.364
11.54
5
19.11
6
1095.3
1998
Tune 16:47
12/17/90
Bm
Tin
Bm/rm
4.365
3.052
3.553
2.701
4.187
Quendi
PEAK
Flat top
T/s
Imm
1/s
No
kA
A
10 Hz
Quench time
a
AC LOSS [ J]
AT
4.383
4.342
4.900
5.080
0.517
0.738
4.503
5.050
0.547
514.1
4.29
4.358
4.446
4.875
4.990
4.968
0.585
0.632
0.522
59.9
736.1
573.1
4.265
4.850
0.585
4.807
5.248
0.441
253
?
Im
T
a
s
22
(K]
OUTLET
5.481
2.6
2.108
0.385
29 kA
Tm = Tl+2+T3
arItAL
1
3 comer
4 corner
4 cable
5427.3
35
Tm=T1+T2+TS
T
MASS FLOW g/s]
3 cable
97
454.2
515.8
633.5
461.8
38.179 ds
5.953 ati
4.365 K
a=600
2
1364
1/rm
Waveform
PACAKE
ACLOSS (J]
0.462
0.594
Itke
a
Quench time
AT
DM Shot number 82
225
-
1u/Tm
Is
29 kA
9 s
11.15 kA/s
No
Quenhi?
Tm=T +T2+T3
7
8.94
-
Tm
Flaztop
10Hz
1
2
3 cable
3 comer
4 comer
4 cable
-
Tm
Bmfrm
kA
INLEr
h.
5.481 T
2.6 s
2.108 T
0.3851/s
Bm
kA
22
PANCAKE
Run number
16:34
la= 400 A
U
FIII
5
6
Tune
1/rm
1s
T1
Is
72=
= 1.6s
T4=
3s
Ln=
Imo=
I
12/17/90
1301
1111
5803.2
1309.2
2082
29 kA
9 a
11.15 kA/s
January 1992
US-DPC Test Report
Run number
226
Connectio
Mode
Single coil
Dte
DM Shot manber 83
inletpressue
5.056
aan
Description Two-stei trwueid with rinoleon Inlettmperatsme
4.365
K
Is
Is
1s
6
3
T4=
s
TS=
55
29
kA
Im=
Imo= 22 kA
la= 800 A
f= 10 Hz
Ti =
=
7
f Hz Sinusoidal ripple
I
bA
(Amplitude I)T2
I
I
I
4
D
2.108 TIs
1/rm
0.385 1/s
PNAEMASS MLOW
INLER
TMEATR]K
PEAK
ET NAL
[g/51
OUTLE1
m
1
2
3 cable
3 cable
3 comer
4.365-
54.188
6
4.18
5.675
5.550
0.973
1.024
1.316
1.116
7.450
3.183
6.660
1.856
Dole
DM Shot number
Run number
227
Connection
Single coil
Mode
1.019
5.475
5.315
4.267
4.8"4
Inletpressure
Inlet taiperaue
Description Single triangle
Waveform
12/18/90
2/3
TOW'inlet flow
AC
5.600 alrn
4.711 K
T1=
5.
im=
1.5kA
MASS FLOW [g/s]
INLEr
AL
PEAK
2
3cable
4.711
x
3 comer
4 corner
x
x
4 cable
x
5
6
X--
4.543
1-
254
s
J
Tune
AT
10:01
Bm
0.284 T
Tm
5s
0.057 T
0.200 1/s
BnWm
1/rm
Quend?
No
ACLOSS [J]
OULE
s
kA/s
Quench information ?
-
0
PANCAKEOM
9
11.15
0.717
.502
4.434
ime
ALS
5.360
4.291
Flat top
Ini/rm
AT
5.100
4.359
4 comer
4 cable
29 kA
Jil
Qumchdetection sequence
VB5-6,MCO3,MCO1
Quench
4.383
4.341
4
Yes-
Qundi ?
T7T22T
T5)
2.6 s
T
Bm/1'm
flattop
Waveform
16:57
5.481 T
Bin
28
Total inletflow
AC
Tne
12/17/90
Jil
Flattop
Imfrm
fs
1.5 kA
0
s
0.30 kA/s
January 1992
US-DPC Test Report
DM Shot mber 274
228
Run number
Dife
Inlettemperalue
Waveform
0,
T1=
5S
Im=
1.5kA
Bm
TM
Bm/rm
i/rm
0.284
5
0.057
0.200
T
S
T/s
mn
Flat top
Im/rm
1.5 kA
0 S
0.30 kA/s
1s
No
Quench?
Tm=T1
MASS FLOW g/s]
PANCAKE
-
MET
iULB
LM.T
I~IMAL
1
4.644
2
4.622
3 cable
3 corner
4.706
4.624
4 cable
5
4.672
4.513
457
Run number
4.
-
a
*
AC LOSS [J]
OUTILT
PEAK
AT
4.734
544
4 corner
-----
--
37~
Dige
DM Shot nmiber 275
229
Waveform
1m --.
T1=
T=
ik
3s
112=
2OkA
Time
12/1890
25.81 eds
5.624 on
4.704 K
Totalinleiflow
Inet pressure
Inlet tUmperture
Connection Singlecoil
Mode AC
Description Single trapezoid
Bm
Tm
Bm/rm
u/rm
Quench?
I
I
3.780
1
3.780
1.000
No
0
TIME (s)
PANCAKE
2
3 cable
3 corner
Tm=T1
MASS FLOW [g/s]
INLBT
OUIEr
1
-
o
''La
m DAL
PEAK
AT
0.172
*
*
5.226
5.226
*
1.63
*
1.81
4 cable
1.22
*
*
255
LOSS]
ACLOSS [J]
4.927
4.985
4.819
4.910
4.918
4.796
5.3*
12.95
r
4.814
4.927
4.985
4.819
4.910
4.918
4.796
4.642
.92
Q
-AC
_____
4cor
5
6
10:08
AD
*T1 *4T1Md
TIME (a)
6
p/s
5.624 son
4.706 K
Total inletflow
Inletpresure
Connection Single coil
Mode AC
Descrption Sinletrianule
Tune
1218W0
10:17
T
s
T/s
1/s
un
Flat top
Inirm
20 kA
3 s
20.00 kA/s
US-DPC Test Report
DM Shotmmber 276
230
Run number
January 1992
Wavefon
I
0
I
1- M
iTl*!.-TIMB (a)
E9U]R
(Xy
OUTMET
RAME
MIAL
5.319
2
3 cable
3 corner
4 comer
4 cable
1.009
4.7
1.693
7.642
5
r
OUn.Er
1.000 1/s
K
0.313
0.340
270.1
4.973
0.354
0.304
0.338
446.9
290.3
4.509
4.973
4.847
5.019
5.251
0.232t-
No
s
1024
657.8
737.2
1649
:j
.
12/18/90
25.698 g/s
5.789 aun
4.697 K
Total inletflow
Inlet pressure
1Inettemperatue
Tune 10:40
4.536 T
1s
4.536 T/s
1.0001/s
Bm
Tm
Bi/Fm
1/Fm
S=
Tl=
T2=
Is
3s
m::
24 kA
4068
387.7
De
1m--
Im
Flat top
Tm/rm
24 kA
3 s
24.00 kA/s
No
3Quendi?
I
23.00 kAfs
AC LOSS [ J]
5.045
4.880
Waveform
Flat top
Tm/Tm
23 kA
3 s
AT
PEAK
4.856
0.239
0.376
Connection Single coil
Mode AC
Description Single trapezoid
Im
Qunchti
DM Shot number 277
231
1/Fm
4.992
4.617
4.616
4.732
4.54
1.87919
1.22
Run number
4.347 T/s
?
Tm=T1
MASS FLOW [g/s)
PACK
'
Bm1M
T1=
is
T2=
3s
7Quench
23 kA
h=
1m.--
10:29
4.347 T
1s
Bm
s
25.99
5.648 mm
4.7 K
Totalinetflow
Inlet pressure
IetteperatUre
Comection Single coil
Mode AC
Description Sinletrapezoid
Tane
12/18/90
Dae
VB5-6,VB3-4,VBI-2,MC02,MCOI,MC
03
0IF
T2j4
M
*T1
PANCAKE
1
I
TIOI!I
TIME (S)
MASS FLOW [g/s]
Tm=T1
_
__
4.63
1
OU48T7
5.2134.63
2
5.213
4.616
5.020
4.731
5.068
3 cable
3 abe
3 comer
4 comer
4 cable
5
6
12.91
1.072
.02
1.696
-
0.245
0.404
4.875
4.697
-.
4.541
4.907
1.869
4.619
5.000
1.22
4.668
4.528
-.
4.995
4.509
4.870
5.019
4.262
256
AC LOSS [J]
04
AT5gA
PEAK
-
1074
0.337
0.366
0.381
315.8
2
0.327
313.3
728.6
412.8
4340.8
470.9
784.2
.
-
1754
0.361
___
I ::___
US-DPC Test Report
Dite
DM Shot umber 278
Runnwmber
232
Connection
Single coil
Mode
January 1992
23.25 vfs
5.646 ai
Total inletflow
Inletpressure
Inlet temperature
AC
Description Single traezoid
Wavefo
Ig
Is
T
3s
I
14-
.79
1.391.67
1.15
4.693
11.2
4.588
E
rAL
4.652
5.075
4.61
5.330
5.400
0.720
0.679
2734
5.180
5.301
5.255
0.648
0.691
0.593
660.7
752
653.4
5.405
0.386
4.721
-3-9-.7
4.532
4.61
4.662
4.505
5.019
51247.1
1.5s
12=
3s
Tm=TI
11:03
T
4.725
1.5
3.150
0.667
s
TIs
1/s
Tm
Flat top
TI/rm
No
Quench tim
UMrAL
AT
0.216
1
5.273
4.637
2
3 cable
5.273
4.601
4.987
0.386
.644
4.736
5.040
0.304
169
3 comer
4 corner
4 cable
7.473
1.696
1.862
1.207
4.527
4.608
4.66
4.868
4.966
-ii4.967
405.3
450.6
289.5
4.5
4.844
0.341
0.358
0.307
0.344
5.019
5.247
0.228
-
257
s
ACLOSS
[ JET
LoSS [J]
-K
U
_
Time
?
PEAK
4.853
12-96
8
25kA
MASS FLOW [ s]
?ANCAKFAC
5
6
25.00 kM
4
Bm
Tm
Bn/frm
W/Tm
25.706 uis
5.837 an
X K
TI=
IIm=
TIME (s)
INET
-
I
1-Tl
n
;* I
Im
1938
12/1890
-sQuend
I
1.0001/s
s
44509
Wavefonn
-
4.725 /s
3
Yes- Coils B and C initiated from
joints.
Quench detection sequence
VB5-6,VB3-4,VB1-2,MC02, MCOI,
MC03
AT
0.423
PEAK
Total inletflow
Inletpressure
Inlettempersture
Connection Single coil
Mode AC
Description Single trapezoid
In
Flat top
Quench time
DM Shot number 279De
233
Run number
I a
ACLOSS [J]
OUTDET
7.07
TM
25 kA
TENUERATURE[K
4.98
2
3 cable
3 comer
4 corner
4 cable
5
Im
Quench ?
25kA
Tm= TI
MASS FLOW g/s]
PANCAKEnZr
INLET
4.725 T
ufrm,
I
TIME (s)
Bon
B/Bu
4.693 K
T=
Im=
Tne 10:51
12/1890
1017
574.3
3985.4
740.1
1654
F
I
25 kA
3 s
16.67 kA/s
US-DPC Test Report
DM Shot number 280
234
Run nunber
January 1992
Date
Total inletfHow
Inlet pressre
Connectin Single coil
Mode AC
Description Singletrapezoid
Iilettnmperature
Waveform
TI=
T-2=
1m..
I
12/1890
Tue
vis
Bm
5.444 am
4.693 K
Ba/rm
11:14
1.5
TM
3
Flat top
3.276 T s
0.667 1/s
1/rm
26 kA
in
4.914 T
in/Tm
s
17.33 kA/s
1.5s
3s
Im=
Yes- Coil C crossover turn
Quench?
26kA
Quench detection sequence
MC03,VBI-2,MCO1,MC02
0
TRME (a)
Tn= TI
MASS FLOW [g/s]
PANCAKEOMr
INLET
E
1
2
4693
3 comer
4 corner
4 cable
4.521
5
6
5.088
AT
0.457
4.602
722
4.526
4.606
4.656
5.385
0.783
5.437
0.715
5.296
5.465
5.400
0.770
0.859
0.744
4.496
5.620
1.124
5.005
5.602
0.597
NAL
4.631
Dote
f Hz Sinusoidal ripple
litue l)rz=
T1=
1.5s
13=
T4=
T5=
Is
0.4s
3
S
in =
18=
3s
TamE (s)
MASS
1
INLET
FLOW [g/s]
TE
OUIEr iiET
5.333
-
-1.688
3 corner
1.854
4 corner
4 cable
1.249
5
t6
-
.9
.19
T
Im
s
Flat top
T/s
Imirm
1/s
No
ACLOSS
-
AT
PEAK
4.952
4.609
4.611
4.666
5.160
5.181
5.032
5.144
5.123
4.5
4.994
0.551
0.459
0.501
0.533
0.457
0.494
r5.012
5.330
0.318-r
258
s
Quenchtime
ImAL
4.606
4.531
4.725
1.5
3.150
0.667
Quench?
ERTR
-
4.722
.715
3 cable
Bin
TM
Bru/fm
1/rm
kA
A
10 Hz
TMT=TI
T31
PANCAKE
J]
25
800
f=
T4
5
Thune 11:31
12/18/90
25.777 vfs
5.789 on
4.688 K
Total inlet fow
Inlet pressure
Inlet ieiperatumf
Single coil
Comectim
Mode AC
'd with superimposed
ra
Description
ripple
Waveform
PEAK
DM Shot number 281
235
Run number
1.58
ACLOSS
OUTlET
3 cable
Quench ime
fJ]
0.346
1430
827.9
268.3
5589.5
559.6
635.6
423
1
2273
58.6
25 kA
3 s
16.67 kA/s
January 1992
US-DPC Test Report
Doe
DM Shotmmber X
Rum number
236
Comectio
Single coil
TrapeMid
Descriptin
5.789
Inletpressur
AC
Mode
Bm
TM
pis
TOW inlet flow
_
IBietn/nm
with superimposed
WHzSinusoidalripple
'
(
TI
U
T1=
1.5s
T4=
T5 =
Is
0.4s
3s
Im=
In=
800 A
2=
rd=
18
3s
26
26 kA
Im
Flai top
3
s
Invrm
17.33 kA/s
Im
T
Fla top
s
T/s ImIrm
27 kA
3 s
18.00 kA/s
3.276
0.667 1/s
No
Qued?
kA
10 Hz
f=
Tm=T1
T3kI
i--
4.914 T
1.5 s
I/I'm
jppie
Waveforn
11:43
Thm
12118/90
TIME (S)
MASS FLOW [g/
ACLSS [J]
-
RNLEI'OUT'
DanIAL
AT
PEAK
x
2X
3 cable
3 cormer
4 cormer
4 cable
4.691
5
-
4.521
Lx
Single coil
Connectio
Mode AC
Description Trapezoidwithsuperimposed
n 9eWaveform
h7 -
Dee
DM Shot number 282
237
Run number
Iuletprieggr
Inlettemp
mure
1/Tm
f Hz Sinusoidal ripple
iuwp Is)T2
- - -
TI=
=
3=
1.5 s
3s
T4=
T5 =
0.4s
3
fin=
26
Ia=
_
as
8 00
_f=
-f-*T-3
T4
1
TEMPERATURE (K]
RamE
IAL
PEAK
5.138
*
.
3 cable
1.036
4.686
4.604
5.548
4.714
J
AT
5.138
0.944
5
4.489
5.370
6
5.048
5.480
0.432 T_
259
Quench detecicm sequence
MC02,VB3-4.VBI-2,MCO1,MC03
ALS
1.770
1.504
0.881
4.522
Yes- Quench information ?
Quench time
4.6
4.656
1.86
1/s
A
4 coer2.013
41.781
4.426
5.103
1.5
3.402
0.667
11:50
10Hz
6.110
6.020
6.370
6.160
3 co
Quench ?
kA
Tm=Tl
TIME (s)
PNAEMASS H.OW [g/S]
DNLW
ILm
Bm
Tm
Brn/rm
24.279 gs
5.462 sun
4.686 K
Total inlet flow
Tiae
12/18/90
2962
1.396
1.498
1130
1835
2965
2305
1940
4245
-
4377
14549
US-DPC Test Report
Run number
January 1992
DM Shot
238
nmber 286
Idetteperatum
Waveform
T=
Tin - - -T2=
-
T3=
7s
3s:
Is
Im =
30 kA
TIME (s)
MASS FLOW [g/s]
PANCAKEognzr
1
23.83
3 cable
3 corner
4 coner
4 cable
.927
1.833
1.998
1.405
5.12
4.683
4513
8.502
239
Connection
Single coil
Description
Quenchtime
PEAK
T
5.640
1.040
5.752
5.630
6.000
5.870
1.042
1.106
833.2
1484
2317.2
1.397
1.223
1962
1369
3331
4.488
6.920
2.432
4.998
6.340
1.342
Doe
nletpressure
Inlettemperaure
Slow-ranptrapezoid
3s
Is
-7=
im=
fI
I
I
- T14'*14j
Tm
BnTm
1/rim
Quench ?
30 kA
OU1mE
Tm=T1
5.670 T
8 s
0.709
0.125 1/s
.931
1.787
1.998
1.373
4.679
wAL I
4.687
4.581
4.7
z4.507
4.588
4.646
PEAK
7.75
ACLOSS []
AT
2346
5.630
5.720
-
1.049
1.020
833.9
5.610
1.103
1435
5.890
1.302
1.124
1847
1261
-26&
5
4.479
5.770
6.500
2.021
6
5.067
6.125
1.058
260
kA
I/i'm
s
3.75 kA/s
Yes- Coil C crossover turn.
Quenchtime
TEMPERATURE [K]
mzr
30
lI
Flat top
Quench detecsion sequence
MC03, VB5-6, VB3-4,MCO1,MC02
-OUTETR
4.28
8.693
Brn
13:47
I
1
5.375
Tune
12/18/90
T3b'
MASS FLOW [g/s]
INLET
7922
I
TIME (s)
-ULrACOSU
15635.2
8S
Tl=
--
2065
18.348 ds
5.391 in
4.679 K
Totalinletflow
T3
2
3 cable
3 corner
4 comer
4 cable
[
ACLOSS [J]
4.6
4.71
4.524
4.603
4.647
AC
Waveform
I. -
PANCAKE
s
6.81
AL
DM Shot number 285
Run number
Mode
Quench detection sequence
MCO3, VB5-6, VB3-4,MCO1,MC02
4.583
5
6
rAL
M
4.29 kA/s
Yes- Coil C crossover turn.
Quench 7
OVUTE
Inar OUTiEF
30 kA
3 s
Im
Flattop
IlIm
0.810
0.143 1/s
B/nn
1/i'm
Tm=T1
-
5.670 T
7 s
Bm
Tm
17.452 is
5.439 ati
4.683 K
Total inlet flow
Inletpressure
Connection Single coil
Mode AC
Description Slow-ramn trapezoid
13:36
Tue
12/18/90
Doe
2268.9
13945.9
3109
6223
_____
-
a
US-DPC Test Report
240
Run number
January 1992
DM Shot number 283
Doe
Inlapressure
lmnnn
Wilettm
Waveform
M -------I
I
I
I
9 s
0.630 T/s
0.111 1/s
1/Thi
Tl=
T2=
T3=
9s
3s
Is
Im=
30 kA
13:58
5.670 T
Bm
T
Bm/frm
21.424 ds
5.468 am
4.675 K
Totalinletflow
ConMection Single coil
Mode AC
Descripon Slow-ramptrapezoMi
Tne
12/18/90
lI
Flat top
Tm/rm
30 kA
3 a
3.33 kA/s
Yes- Coil C crossover turn.
Quench 7
Quenchdetectionsequence
MC03,VB5-6,MCO1,MC02
TIME (S)
Tm=T1
MASS FLOW [g/s]
PANCAKELL.r
INLEr
IT
1.063
4.675
MIAL
4.675
5
1.944
1.393
11.526
6
Run number
241
PEAK
1.068
5.780
5.660
6.040
6.875
1.080
1.145
975.7
1393
2368.7
1.449
2.231
1958
1372
3330
6.900
2.421
6.340
1.311
DM Shot number 284
Dae
Total int flow
Inletpressure
InTettenmperare
Waveform
n - - - - - - - -
T1=
T2=
T3=
Im=
PANCAKE
MASS
INLEr
3.915
2
3.915
5
6
6.784
11.78
.74
12/1890
Tune
Bm
Tm
Bm/rm
1/frm
u1s
3s
Is
5.670
11
0.515
0.091
Quendi?
14:09
hn
T
Flat top
s
T/s Tm/Fm
1/s
No
kA
Quench times
ACLOSS [J]
OUT
PEAK
4.914
5.095
AT
0.234
0.514
0.419
0.463
377.9
546.2
924.1
4.587
4.642
4.48
5.117
4.970
5.070
5.055
4.930
0.483
636.5
435.9
1072.4
5.065
5.300
0.2357
NLmAL
4.68
4.581
1.092
10761
22.479 e/a
5.740 an
4.675 K
Tm=T
FLOW [g/s[K]
OUT
18319.7
T2-04Tsb
TIME (s)
1
3 cable
3 comer
4 comer
4 cable
d
TI
1860
5.650
4.7
4.515
4.591
4.644
4. 4479
5.029
Conmection Single coil
Mode AC
Description Slow-ramp trapezoid
1,i4--
s
AT
4.582
2
3 cable
31.675
4 corner
4 cable
8.73
ACLOSS [J]
-
OUTE
3.382
1
Quench time
4.675
1.691
1.919
1.344
4.698
4.507
4.506
261
0.413
0.450
3974.5
1978
30 kA
3 a
2.73 kA/s
US-DPC Test Report
Run number
January 1992
DM Shot mmber X
242
Total inletflow
Inlet pressure
hnlettemperature
Single coil
Mode AC
Description Slow-ramp traezoid
Conmection
Waveform
S--
Dife
a
I
INLET
OUILE
Quench ?
No
T
s
T/s
1/s
Im
Flat top
hniTm
30 kA
s
3.00 kA/s
10s
T3=
3s
Is
Tm=
30kA
Tm=TI
TMATURE [K]
MASS FLOW [/s]
MIT
Bm/Pm
1/Im
5.670
10
0.567
0.100
T&
"
IMB (s)
PACAKE
14:20
I
I
I
Time
Bm
Is
5.837 anm
4.672 K
Tl=
T2=
------
12/18i90
ACLOSS (J]
_____oULnzr
PnAx
1
INAL
AT
x
2
4.672
3 coma
4 corner
4 cable
-
x
x
x
5
4.501
I
-
I
6
Run nwnuber
243
Conection
Singlecoil
_
DM Shot number 287
Totalinletiflow
12/1890
25.813
gls
Bm
5.861 an
4.672 K
Tm
T2=
Ia)
a -----
9s
3s
Is
2s
9s
T1=
f Hz Sinusoidal ripple
T3=
T4=
TS=
30
Im =
la=
f=
M
)
M
OUTLET' RAM
1
5.453
3 cable
1.018
1.815
1.939
1.186
3 corner
4 co7er
4 cable
5
12.68
6
12.
5.670
9
0.630
0.111
4.672
4.501
_
.51
E
INfAL
14:31
Tm
T
Flat top
s
TIs im/rm
1/s
30 kA
3 s
3.33 kA/s
No
Quend?
kA
800 A
10Hz
Tm =T
MASS FLOW (g/s]
2
Tune
1/'m
Waveform
INLEr
_
Bm/Pm
npple
PANCAKE
_
D1w
Inlet pressure
InlettemperuNre
Mode AC
Description Trapezoid withsupernposed
_
[K
Ot ur
PEAK
Quench time
ACLOSS [J]
AT
0.508
0.864
4.62
4.591
5.128
4.697
5.450
5.328
0.753
0.819
570.5
4.509
4.59
5.445
0.855
1055
5.455
4.644
5.380
0.736
4.477
4.989
5.250
0.773
5.482
262
a
0.493
2249
1527.5
957
8869.8
3
-253
3413.
1
1
1
1
US-DPC Test Report
DM Shot number 288
244
Run number
January 1992
Inletpressure
Inet4672
(
is)
'-d
:~T
8s
3s
IsS
2s
Bs
T=
0_
7--014
TIME (s)
FLOW
MASS
INLER
OUILER
IACAEONLr
M
-
]
5.120
5.440
4.701
4.513
5.432
s.3
0.731
564.5
928.6
1018
619.8
1.908
-4.592
5.428
0.836
1.195
4.647
4.481
5.364
5.230
0.717
0.749
4.92
5.474
0.554
4.503
12.63
Trapezoid with superimposed
ripple
f Hz Sinusoidal ripple
ituce l)
Ia=
f=
D-4T
TIME (s)
INLEr
OUTLET
TK]
I
3s
Is
2
Quenchtie
1.084
4.7
4.512
4.591
4.648
4.478
5.795
5.695
6.160
6.020
7.900
1.095
1.183
1.569
1.372
3.422
4.994
6.740
1.746
4.502
3 s
4.29 kA/s
Yes- Coil C crossover turn.
6.811
ACLOSS [J]
O M
2
X
30 kA
Tin
Flat top
Tm/Fm
kA
A
10 Hz
0.606
6
7 s
0.810 TIs
0.143 1/s
Quench detection sequence
VB5-6,MC03,MC02,MC0l
7s
5.670
5
Quendi?
30
800
5.252
4.672
5.670 T
3
4.586
x
Bm/Fm
14:54
7s
1
X
X
X
Bm
TM
4.672 K
nAL
4.646
3 cable
3 comer
4 coner
4 cable
Tre
12/18/90
Tm=T1t
MASS FLOW [g/s]
PANCAKE
3328
5.665 am
T1=
7 =
=
T4=
TS=
Im =
-T1
1637.8
1/rm
Waveform
T4
8656.9
pis
Total inlet flow
Inlet pressure
Inlet tnmpermure
Connection Single coil
Mode AC
Description
Dle
s
2198
0.795
DM Shot number 289
245
Run number
No
ACLOSS [J]
AT
0.494
0.854
PEAK
4 comer
4 cable
6
3 s
3.75 kA/s
1/s
Quench tie
1.023
1.792
5
TIs
30 kA
im
Flattop
Tm/Fm
10Hz
3 cable
3 comer
4
S
kA
800 A
4.586
4.626
5.401
2
MMAL
Quendi ?
Tm=T1
TEMPERTURE
[g/s]
TM
Bm/rm
T
30
Im =
la=
f_=
T4
5.670
8
0.709
0.125
Brn
1/Fm
T1=
77=
T3)=
T4=
f Hz Sinsoidal ripple
14:43
Tae
12/18/90
25.698 its
5.861 son
K
Total inletflow
Connection Single coil
Mode AC
Description Tragezoid with swperimoosed
ripple
Waveform
Dift
PEAK
263
AT
X
X
X
X
X
X
s
US-DPC Test Report
246
Run number
January 1992
DM Shot number 290
Dde
Tnlettemperatu
T2 =
1
Run number
nmAL
5.689
6.064
5.504
5.504
1.001
1.731
1.936
7.716
6.224
1.242
12.88
6.081
12.8_
6.0_
247
6.068
5.94
6.087
6.04
5.952
1 6.196
-
I
TIME (s)
FLOW [g/s]
INLET OUTLE
ML
5.729
5.504
2
3 cable
3 comer
4 corner
4 cable
5
6
1.001
7.71
Tf
imflim
20 kA
3 s
4.00 kA/s
1/s
6.245
1.731
1.936
1.242
12.88
12.8816.22
s
AC LOSS (]
PAx
AT
5.840
0.151
6.235
0.171
6.220
0.152
0.154
0.158
0.144
0.156
6.094
6.245
6.184
6.108
6.334
970
651
263
5174
388
763
469
294
7
--
2790
0.138
Dwe
26.1 g/s
6.050 ati
6.245 K
Tl=
2=
I.5s
Izi=
20 kA
3s
Time
12/18190
15:40
3.780
1.5
2.520
0.667
Bm
Tm
Bm/Tm
l/rm
Quendi ?
T
s
T/s
Im
Flat top
lI'm
1/s
No
Tm= T1
MASS
1
I
TOtal inlet flow
Tnletpressure
Inlet temperature
Waveform
a
ouizr
DM Shot number 291
Connection Single coil
Mode AC
Description Single trapezoid
PASKO
Flat top
Quench time
TEMPATURE (K]
6UhZlT
-I
4 comer
4 cable
6
s
3s
Tm=TI
MASS FLOW [g/sJ
3 cable
3 comer
Bmfim
hm
T
I
+-TIME (s)
2
3.780
5
0.756
0.200
Ss
T1=
IE
'n
1/Im
IM-
PANCAKE
B
26.1
Inletpressure
Waveform
T1
Wls
6.002 an
6.224 K
Total inlet flow
Single coil
Mode AC
Description Sineletrapezoid
conection
15:29
TIne
12/18/90
6.1
oumsr
PEAK
AC LOSS (]
AT
6.093
6.292
0.153
0.199
6.095
5.967
6.114
6.063
6.271
6.153
6.302
6.235
0.176
0.186
0.188
0.172
5.979
6.152
0.173
6.370
0.150
5.882
264
1136
292
453.7
745.7
539.9
344.8
884.7
4464.4
1698
1
20 kA
3 s
13.33 kA/s
US-DPC Test Report
January 1992
DM Shot number 292
Rim number
248
Conectio
Mode
Single coil
Dae
25.98 eis
6.190 an
6.253 K
TOal inlet flow
Inletpressure
Inlet temperatue
AC
Description Single trapeoid
15:51
Tum
12/18/90
Bn
TIn
Bm/rim
3.780 T
Im
s
Flattop
.75
Im/Fm
5.040 TIs
1.333 1/s
1/rm
20 kA
3 s
26.67 kA/s
Waveform
TT=
IM - -T=
O.75g
Tm=
I
3s
No
Qunch?
20 kA
1071
'T1M
m =T 1
( )T
TWE s)
MASS FLOW [gs]
PANCAKE
1
2
3 cable
3 corer
4 corner
4 cable
5
6
Run number
1.029
5.883
6.1
6.295
0.195
0.176
0.182
276.6
395.2
-
6.115
6.067
5.979
6.276
6.155
6.304
6.236
6.151
0.189
0.169
0.172
481.2
321.6
61066.225
6.364
0.139
6.253
6.1
5.973
-
Inletpressure
Inlet temperature
MASS FLOW [g/s]
1
2
3 cable
3 corner
4 corner
4 cable
5
6
OUTLET
T2=
0.3s
3s
Tn=T1
Tm=I
TUVI (s
12/18/90
Bm
Tm
BmnFm
MAL
PLAK
3.780
.3
12.600
3.333
T
s
Quench ?
TIs
Im
Flat top
un/Fm
1/s
No
£
s
ACLOSS [J]
5.950
0.238
6.368
0.303
12.89
6.339
6.216
6.364
6.293
6.201
6.201
6.410
6.075
16:02
AT
6.065
6.072
5.939
6.082
6.039
.947
6.238
Time
ALOSE []
OM
5.712
-
1538
-
L
4019.6
-
IQuench time
5.6
1.163
1.767
1.989
1.357
671.8
1/m
a
TIME (a)
1007
23.287 gs
5.910 an
6.238 K
Total inlet flow
T1=
INE
-
Date
Waveform
hm--
PANCAKE
PEAK
DM Shot number 293
Connection Single coil
Mode AC
Description Single trapezoid
s
ACLOSS [J]
5.739
1.78
12.9
time
AT
0.144
1.978
1.978
1.288
249
E [K
onzr
DUIfMIAL
5.474
7.716
T=TIQuench
_M
I T
__
265
0.267
0.277
0.282
0.254
0.254
0.209
1726
539.6
623.7
759.7
572.4
1163.3
2365
6586.4
6532.4
20 kA
3 s
66.67 kA/s
US-DPC Test Report
Run number
January 1992
Dde
DM Shot number 294
250
TOalinletflow
Connection Single coil
Mode AC
step-downpulse
Description
Tm
12/1890
Im
5.670 T
Flattop
6 s
im/Tm
0.945 T/s
0.167 1/s
Bu
g/3
6.215 ann
4.695 K
Inletpressue
Inlet temperalu
16:27
Tm
Bmnnm
/Urm
30 kA
3 s
5.00 kA/s
Waveform
T1=
77 =
T3=
(Tm/r)t + 0.2hn sin(1801/T1)
6$
3s
1.9s
T4=
33
T5=
Is
I
*
o
- - -Im
3
0 kA
2DkA
=
IMD=
I-T1---120
T31 T4 ITS I
t (s)
T1ME
PANCAKE
Tm=Tl
OUTM
LoEr
MMLT
AL
0.307
4.776
5.088
4.646
4.906
0.312
0.260
4.653
2
5.742
4.695
X
X
3 corner
4 cormer
X
5.778
4 cable
X
5.984
X
5
6
4.525---
X
Dae
7s
3s
T1=
2=
T
T4=
Ts=
f Hz Sinusoidal ripple
litde.U)
- - - -
Tm=
Ia=
MASS FLOW
PMSCAKE
1
INLET
(s)
TE
OUrim
9.982
2
3 cable
3 comer
4 comer
4 cable
12.92
5
6
20.84
20
2.252
3.13
3.535
2.546
4.693
4.523
Quench ?
4.647
4.76
4.579
4.666
4.727
4.56
5.061
T
s
T/
1/s
No
30
kA
A
20 Hz
znb tiu1
time
Quench
ERATURE
WrmAL
4.635
5.670
7
0.810
0.143
800
Tm=TT
s]
Bm
Tm
Bm/Tm
16:37
29
7
s
f=
..
TINM
Tme
1/rm
Waveform
T4 '
12/18)90
43.742 als
6.142 sun
4.693 K
Totalinletflow
Inletpressare
Inlet temperatue
Single coil
Mode AC
Description Trapezoid with superimposed
npple
x
X
7
5.75
Conection
X
x
DM Shot number 295
251
Run number
ACLOSS [J]
AT
PEAK
4.960
1
3 cable
Quench time
MUATURE [K]
MASS FLOW [g/s]
INMET
No
Quendi ?
OUTLEr
PEAK
AC LOSS [J]
5.246
AT
0.611
5.460
0.813
5.455
5.300
5.455
5.380
5.240
0.695
0.721
0.789
0.653
0.680
5.574
0.513
266
2296
694.5
851.4
1545.9
1004
733.1
1737.1
8618
3039
Tk
Flat top
Im/Tm
30 kA
3 s
4.29 kAls
US-DPC Test Report
DM Shot number 296
252
Run number
January 1992
DWe
Inletpressure
Inlettempersture
Wavefonn
f Hz Sinusoidal ripple
itue I)
T1
2=
3=
T4=
TS =
6s
3 s
Is
1.5s
6.53
Im =
30
kA
8 00
Lk=
f=
W4
,~ -
TAM- (-)
-1
1
OUTLEr
HNLm
OURE
o
UfMAL
M
4.64
4.65
11.5
2
3 cable
3 coner
4 comer
4 cable
5
6
Run number
15.53
2.393
5.586 4.769
3.117
4.582
4.667
4.728
3.554
2.763
16.3
14.19
61
14.1
253
4.561
5.064
A
Quench time 5.71
s
-S
ACLOSS [J]
AT
0.819
1.111
5.782
5.640
5.840
5.760
6.325
1.013
1.058
1228
1361
2589
1.173
1.032
1.764
1.156
1731
1410
3141
Dae
Total inlet flow
Inlet pressure
Inlet tempcrature
Connection Single coil
Mode AC
Description Miss shot
1/s
20 Hz
5.761
DM Shot numiber 297
Flattop
hnirm
3995
14731
5006
T
TIme 16:59
12/18190
T
BI
Tn
BmInm
If/m
37.006 d/s
5.131 ain
4.697 K
X a
T/s
Ink
Flat top
m/m
1/s
Wavefonn
Yes- Joint?
Quench ?
Quench detection sequence
NOT AVAILABLE
s
Quench time 5.59
MASS FLOW [Ws]
PANCAKE
2
3 cable
3 comer
4 corner
4 cable
INLET
OUTLBT
7.039
AC
-
ET
7._39
117
18.697
6
2.779
3.332
3.725
3.078
4.697
4.526
1NAL
4.642
4.653
4.769
4.581
4.671
4.734
4.567
~~~5.064
OTEr
PEAK
ACLOSS [J]
AT
5.340
0.698
5.620
0.967
5.700
5.556
5.795
0.931
0.975
1.254
1.061
7.610
6.840
3.043
1.776
5.925
267
30 kA
3 a
5.00 kA/s
MCO3,VB5-6.VB3-4.VB1-2
5.459
6.220
T/s
Im
Quench detection sequence
zr
PEAK
T
s
Yes- Coil C crossover turn.
Quench ?
TIM=TI
MASS R.OW [g/s]
PANCAK
16:48
5.670
6
0.945
0.167
Bin
Tn
Bm/rn
Ifm
41.22 gfa
5.598 am
5.586 K
Toal inlet flow
Single coil
Mode AC
id with superimpod
Description TEI
ripple
Coimecton
Tne
12/1890
2226
1368
1394
2762
-
1986
23137
1683
14480
_______
___
X kA
s
kA/s
US-DPC Test Report
Run number
January 1992
Inlet
Sinde triangle
K
T1=
5s
Im=
1.5 kA
Tun
10:12
Im
Bm 0.461 T
5 s
TM
BmIT1m 0.092 TIs
t e1/ 0.20011s
6.026 aim
p4.321
Waveform
12/19/90
P/s
Total inlet flow
Inlet pressure
Series with Ul & U2 coils
Mode AC
Conecicon
Description
Due
DM Shot number 133
254
Flat top
lm/rm
1.5 kA
0 s
0.30 kA/s
No
Quench ?
0
TME (a)
Ti~i
INaEr
ouTLT
dEr
4 corner
4cable
_
Run number
X
X
4.247
X
X
X
5.012
X
X
x
4.138
_
3
-X
-_
__
DM Shot number 134
255
Series with Ul & U2coils
Mode AC
Description Single triangle
Connection
_
Dae
Totalinletflow
Inletpressure
Inlettemperatue
Waveform
Tm....
4T1*
AC LOSS [J
AT
X
4.321
X
6
PEAK
4.298
4.464
2
3 cableX
3 corner
Ouzr
4.341
X
I
IfffAL
times
DK
TEMERATL
MASS FLOW [g/s]
PANCAKE
Tm= T1
T=T1Quench
()
53
Im=
1.5kA
INLET
MTW
DaTIAL
ou17=E
I1
4.344
4.3
6=
Tm
Flattop
Bn/Fm
l/rm
s
Im/Fm
0.092 T/s
0.200 1/s
No
Quench?
time
2
5
5
Tm
T1*
MASS FLOW [g/s]
3 cable
3 corner
4 corner
4cable
10:20
0.461 T
Bm
TIMEQuench
PANCAKE
_
Tune
12/19)90
pis
6.026 onu
4.32 K
TIm
_
X
X
X
4.32
X
X
X
4.14
PEAK
s
AC LOSS [J]
AT
___
_______
X
X
X
4.466
4.249
5.014
X
x
X
-
-
X
268
-
1.5 kA
0 s
0.30 kAls
US-DPC Test Report
Rim number
January 1992
DM Shot mmber 135
256
Date
Total inlet flow
Inletpressure
Connection Series with Ul & U2 coils
Mode AC
Description Singletriangle;
6.002 an
4.325 K
Waveform
T1=
lm .. ..
1*
6kA
Tm=T1
Quidi?
No
Qch
_
TEACELOSURE
MASS FLOW [g/s]
INLEr
OUTLEF
,AL I PEAK
4.419
4.346
I
2
3 cable
3 cor
4 corner
4 cable
12.77
5
3.792
X
X
.536
.249
4.325
4.144
6
Run number
257
4.304
4.469
4.412
4.566
0.073
X
-
0.106
6.886
5.978
0.077
0.064
-
-
-
X
-
Dafe
Waveform
X
0.108
0.097
4.357
Total inlet flow
hnletpressure
Inlet tenperamie
___
ACLOSS [1]
AT
-
-
4.251
5.015
6.809
5.914
DM Shot nunber 136
Comection Series with Ul & U2 coils
Mode AC
Description Single triangle
X
x
40.05
231.55
191.5
Time
12/19/90
17.673 rfs
6.026 air
4.324 K
3.688
.75
4.917
1.333
Brn
Tm
Bm/rm
l/rm
10:41
T
s
T/s
I/s
Tm
Flat top
Im/rm
T1= 0.75s
Im=
12kA
No
Qunch?
0
~TRA
(s)4mQuench
MASS FLOW gs]
INLET
time
-
OUTLEr
2
3 cable
3 corner
4 corner
4 cable
12.82
5
3.856
.719
.601
.509
.143
4.324
4.142
s
ERTURE [K]/s]
jMAX
1
6
6 kA
0 s
8.00 kA/s
T1*
TIME (s)
PANCAKEL
1m
Flattop
TIs 1m/rm
I/s
T
s
0.75s
Im=
0
10:28
1.844
.75
2.459
1.333
Bm
Tn
BmIn
I/rn
ga
IdetwamperItUre
TUne
12/19/90
4351
4.303
4.469
4.251
5.019
6.814
5.914
4.507
4.540
AT
0.156
0.237
4.681
4.483
0.212
0.232
PEAK
7.000
6.115
X
269
0.186
0.201
47.68
51.4
40.63
X
34.59
92.03
721.49
4
527.2
12 kA
0 s
16.00 kA/s
US-DPC Test Report
258
Run number
January 1992
DM Shotnmnnber 137
Doe
Totalinletflow
Inletpressure
Inlettemperatue
Connection SerieswithU1&U2coils
Mode AC
Description Singletriangle
Bun
Tim
5.532
.75
7.376
1.333
Bm/rIm
1/i'm
Waveform
0
17.65 els
5.977 an
4.324 K
TI=
.75 s
Im=
18kA
10:53
Tae
12/1990
TM
T
s
TIs
Flattop
Tm/I'm
18 kA
0 s
24.00 kA/s
1/s
No
Quendi?
4T1*e4T1*
TIME (s)
Tm=T1
Tm=TIQuench times
MASS FLOW [g/s]
INLET OUL
-
nET
4.351
1
2
.992
3 cable
3 comer
4 comer
4 cable
.721
12.84
.504
.186
4.143
3.818
5
4.324
259
4.303
4.469
4.252
5.024
6.81
5.93
AT
EAK
4.619
4.730
0.268
4.859
4.670
0.390
0.418
7.290
6.430
0.480 74.2
86.93
0.427
96.79
74.94
171.73
1595.539
1
3.679
879
1187
0.500
X
6
Run number
ACLOSS [J]
-
NunAL I
DM Shot nunber 138
Comnection Series with U1& U2 coils
Mode AC
Description Sinle triangle
D1e
17.776 its
Total inlet flow
Inletpressure
Inlet ftapardm2e
Waveform
Time
12/19/90
5.977
4.329 K
Bin
TM
Bmi/m
1/nn
7.376
.75
9.835
1.333
11:04
T
s
Im
Flat top
TIs
Tm/im
1/s
TT= 0.75 s
Tm .....
Im=
24kA
Quench?
No
0
TamE (s)
Tm=T1
MASS FLOW [g/s]
PANCAKE
1
2
3 cable
3 corner
4 corner
4 cable
5
6
INLET
AC LOSS
-oTEr
KMALS
OUTETnAL
4.359
1.09
4.308
12.9
3.78
.711
.57
.516
.261
Quench me
4.329
4.146
4.473
4.255
5.035
6.825
5.785
X
PAK
4.791
5.021
5.159
4.980
5.590
7.750
6.750
270
s
J
J
AT
0.432
0.713
168.1
0.686
0.725
174.6
128.7
303.3
0.555
0.925
0.965
43.94
326.7
370.64
- 2869.04
2027
24 kA
0 s
32.00 kA/s
US-DPC Test Report
January 1992
DM Shot munber 139
260
Run number
5.007
aim
8.298
.75
11.064
1.333
Bm/rn
I/rm
T
s
Im
Flat top
TIs
Imm
27 kA
0 s
36.00 kA/s
1/s
0.75s
TI=
.
Bm
Ti
4.33 K
Inlettemperature
11:15
Tume
12/19/90
X/s
Total inleflow
Inletpressure
Series with Ul & U2coils
Mode AC
Deacription Sineletriangle
Connection
Waveformt
Wav
De
Yes- Coil C. but not crossover tum.
Quench 7
27 kA
Tm=
Quench detection sequence
USVB5-6,USMC03,USMCO1,USMCO
2
0A
T1*
T1*
TIME (s)
PANCAKE
I
2
Tm=T1 .Quenchtime
INLET
x
[J]
E
OURiEF
4.33
X
X
X
X
3 cable
3 comer
4 corner
4 cable
5
4.1
6
nAL
AT
PEAK
4.368
5.640
1.272
4.314
6.620
2.306
4.479
4.262
5.036
6.838
6.800
6.680
2.321
2.418
X
X
6.140
1.104
X
8.340
6.900
1.502
0.965
X
Dee
12119/90
5.935
X
X
X
Run number
DM Shot rnauber 140
261
Connection Series with Ul & U2 coils
Mode AC
Description Singletrapezoid
17.703 gus
5.813 an
4.341 K
Total inlet flow
Inlet pressure
Inlettlmpertare
TI=
77=
kn
3.688 T
Bm
1
Tn
Bm/rm
TIME (s)
MASS FLOW [g/s[
A SS FLWm[]
OUlLET
ENLE
Is
0.53
No
3 cable
3 corner
4 comer
4 cable
5
=
12.88
.665
.736
.598
-
Quench te_
s
ACLOSS [J]
MET
4.341
-.65
3.921
l2kA
Tm=T1
.902
2
Im
Flat top
in/rm
1;TIO
72
T
;*T1
Im=
s
3.688 T/s
1.000 Ifs
Quend?
a
11:27
Tune
1/Fm,
Waveform
6
s
K]sT
MASS FLOW
-ACLOSS
.822
4.158
IrfiAL
4.375
4.510
4.32
4.550
0.135
0.230
4.489
4.345
5.029
4.700
4.500
0.211
0.155
6.867
7.015
5.971
6.142
0.148
0.171
PEAK
X=1
271
AT
44.95
48.09
50.59
98.68
X
188
18
-
500.9
832.53
12 kA
0.5 s
12.00 kA/s
US-DPC Test Report
Run number
January 1992
DM Shot mumber 141
262
D1e
Inletpressure
InlettwMperOMt
T1=
T2=
--
11:38
Time
Im.
5.532 T
Flat top
1 s
5.532 TIs Tm/Tm
Bm
Tm
Bmim
18 kA
0.5 s
18.00 kA/s
1.000 Os
1/rm
Wavefoun
a
17.93 n/s
5.861 son
4.333 K
Total inlet flow
Comection Series with Ul & U2coils
Mode AC
Descripton Singlelrapezoid
12/19/90
is
0.Ss
Im=
No
Qoaadi ?
18kA
0
2---2
TIME (s)
*T1
Tl*!
MASS FLOW [g/s]
PANCAKE
1
2
-
INLET
.671
12.94
4 comer
.
.606
4 cable
-.68
5
E-
4.333
.473
J]
ACLOSS
4.351
4.606
4.303
4.712
AT
0.255
0.409
4.476
4.259
4.855
4.670
0.379
0.411
PEAK
91.98
183.82
99.79
94.03
2295.666
4.66
5.03
7.370
6.590
6.84
5.93
3.998
S
-PACALORS[
U
MUTEL RmAL
.992
3 cable
3 corner
u
Tm=T1
0.530
0.660
558
Date
12/19/90
1457
X
6
Rin number
DM Shot number 143
263
pis
Total inlet flow
Series with U1 & U2 coils
Mode AC
Description Singlerapezoid
Conmection
Tl=
T2=
Jm--
Bm/Tm
l/rm
11:49
7.376 T
1 s
7.376 Ts
1.0001/s
1m
Flat top
IrnTm
Quench ?
24 kA
Yes- Coil C. but not crossover turn.
Quench detection sequence
USVB5-6,USMC03,USVB3-4.
USMC02
TIME (s)
PANCAKE
FLOW [g/[K
INLE
OUTRT
Tm=TI
Quench time 1.4
MASS
(J]
-ACLOSS
M
M
AL
4357
_PEAK
AT
4.984
0.627
2
4.261
5.725
1.464
3 cable
3 corner
4 comer
4 cable
4.489
4.26
5.036
7.280
7.550
5.930
6.84
8.100
5.94
6.975
2.791
3.290
0.894
1.260
1.035
X
X
X
x
X
4.149
5X
6
4.333
___
X
X
X
X
X
X
X
______
272
24 kA
0.5 s
24.00 kA/s
Is
0.5s
Im
Im=
Br
4.995 akn
4.333 K
Inletpressure
Inlettemperaue
Waveform
Tune
3
US-DPC Test Report
January 1992
DM Shot nmber 144
264
Run number
AC
Mode
Description Single traezoid
Tie
12/19/90
4322 K
f/in
Waveform
Is
0.5s
T1=
Tin--
2=
im=
13:21
6.761 T
1 s
6.761 T/s
1.000 1/s
Bin
Tn
BmI/Fm
17.974 d/s
5.073 a.n
Total inlet flow
Inletpressre
Inlettemperau=
Series with Ul & U2 coils
Comection
Dae
in
FlatTop
Im/Fm
22 kA
0.5
s
22.00 kA/s
Yes- Coil C crossover turn and other
part.
Quench detecdon sequence
USMC03, USVBS-6,USMC01
Quench ?
22kA
I
I
0
.T
PANCAK
m--T
TIME (s)
MASS
FLOW
h2
4
5
S
E
[g/z]
NETNMAL
ouEr
.65
4.322
.652
13.37
TR
Om
643
-.623
4.336
4.774
0.438
4.29
5.000
4.468
4.25
5.021
6.801
5.195
-5.010
5.493
8.050
0.710
0.727
0.760
0.472
1.249
6.880
0.970
4.137
3.745
ACLOSS
6
X
Tune
Bn
17.729 g/s
5.953 sun
4.337 K
Total inlet flow
Inlet pressure
Inlet temperaure
_
12119/90
Due
Tm
Bn/rm
1/Fm
Waveform
rM --
TI=
T2=
I
lm=
[ J]
X
__
DM Shot number 145
Coimection Series with Ul & U2 coils
Mode AC
Description Single ftraezoid
s
X
X
X
X
XC_
Run number - 265
1.11
AT
PEAK
2
3 cable
3 corner
4 comer
4 cable
S
Tm=T1
.859
1
.03TAC
Is
0.5s
Quench ?
13:32
6.454 T
1s
6.454 TIs
1.000 1/s
No
21 kA
0
TIME (a)
MASS FLOW
PANA
INEF
1
2
3 cable
3 corner
4 com er
4 cable
5
6
[g/s]
5UTLET
.584
.639
.649
Tm=TI
T
ACLOSS
-
m
4.337
-. 61
3.758
I
4.13
nEAL
O
r
PEAK
ACLOSS
4.36
4.309
4.479
4.265
5.026
4.688
4.848
0.329
0.539
4.990
4.812
5.136
0.511
0.547
0.110
104.2
106.8
13.75
6.84
7.800
6.790
0.960
0.850
710
5.94
x
112.2
211
723.79
2915.95
1869
I
273
J]
AT
___
In
Flat top
Im/rm
21 kA
0.5 s
21.00 kAjs
US-DPC Test Report
5.023
Inletpressure
AC
Idet tmperam
Description Single trapezoid
Waveform
Tme
12119/90
.75 s
Tn
sun
T1= 0.75s
77= 0.3s
hn
Im=
m
40.00 kA/s
Yes- Coils A. B and C.
.Quendi?
T
-
30 kA
0.3 s
1m
Flat top
12.293 fs
1.333 I/s
BIm
1/rTm
4.338 K
13:44
9.220 T
Bm
24.369 Wgs
Total id flow
Series with Ul & U2 coils
Conneclion
Mode
Dafe
DM Shot number 146
266
Run number
January 1992
30 kA
Quench detecdion sequence
USVB5-6,USVB3-4,USMC02
I
USVB1-2,USMCO1,USMC03,
0,
4T2-.--j4T1
jT1*
TIME (s)
MASS
PANCAKE
FLOW
[Ws]
-
TEMPERATURE [K]
-
-TrA
.883
4.338
.6
3 cable
3 comer
4 corer
9
4 cable
4.375
12.800
AT
8.425
4.29
21.750
17.460
s
[ JI
X
4.45
X
4.256
.656
6.060
1.025
X
-.605
6.847
12.975
6.128
X
5.93
10.520
4.590
X
X
____
6
.933
X
5.035
4.15
267
PEAK
.584
3.825
Run number
AC LOSS
AS
-
mrDUA.
INr IUTER INLET
1
2
Quench time
Tm=T1
DE
DM Sbot number 174
inletpressure
4.356 K
Inlettempertum
Description Round-edged pulse
14:18
3.688 T
1.7 s
Bm
16.013 ds
5.764 a
Toal inlet flow
Series with Ul & U2 coils
Mode AC
Connection
T'ie
12/19/90
Tm
Br/trm
1/Tm
Im
Flattop
/s
0.588 1fs
2.169
Tm
Waveform
(ImfrT)t + 0.281m sin(180ttrl)
-
-
-
T1
1.7s
T3=
3:
0.51
72=
-
I
Im=
Quendi ?
No
l2kA
0
TIME
PAACAK
NLRM
t
(s)
Tm=T1
TEMPERATURE [K]
N1
r
rnL,
PEAK
4.355
4.527
0.172
2
4.306
4.569
0.263
4.465
4.695
0.230
56.16
4.229
5.037
6.775
4.490
5.042
7.015
0.261
0.005
0.240
47.46
3.06
324
5.874
6.350
0.476
3 comer
.683
12.08
4.356
.592
.686
4 cable-.68
5
6
_I
IXI
52.03
103.62
1161.41
678.7
_1__
274
s
aT
1
3 cable
time
ACLOSS [J]
U7
[g/s]
ouILm
Quench
12 kA
3 s
7.06 kA/s
US-DPC Test Report
268
Run number
January 1992
DM Sbot umber 175
Bm/1m
4.361 K
14:29
4.610 T
2.1 s
2.195 T/s
0.476 1/s
Bro
Tm
5.837 aim
Inettemperstur
Round-ediedpilse
The
12/19/90
16.969 x/s
Total inltflow
Inietpressure
Cosmection Series with Ul & U2 coils
Mode AC
Description
DftW
1/1)m
mi
Flat top
ImdTm
15 kA
3 s
7.14 kA/s
Waveform
2.ls
TI=
(Imil)t+0.281msin(180tIr1)
&1 -
3s
0.5s
hn--12=
-T3
-=
Im=
TIME t (s)
1
-
ET
-L
-
1066
2
3 cable
3 corner
12.0
4 corner
4 cable
6X
Run number
.608
.592
.589
-. 67
4.361
4.342
4.555
4.295
4.642
4.442
4.760
4.224
4.565
0.213
0.347
0.318
0.341
6.75
5.854
-
4.12
6.750
DM Sbot mmber 176
129.75
62.16
-
1.180
0.896
711
Date
12/19/90
711
,
1475
2.5z
3z
0.5s
Tim
T2 =
(ImdTl)t + 0.281m sin(180tfrl)
T3=
i=
1=
Br
Tm
Bm/rm
5.532
2.5
2.213
0.400
TM RTR
MASS FLOW [Ws]
K
PEAK
MTAL
AC LOSS [ J)
AT
4.356
4.650
0.294
4.317
4.781
0.464
4.462
4.245
4.887
4.700
0.425
0.455
96.94
85.79
182.73
5.043
6.558
5.89
9.330
7.720
- .
2.772
1.830
X
1321
1321
4.38
.639
-.73
5
3._76
1s
8kA
1
4 corer
4 cable
Im
Flat top
1mTxm
No
Quench
2
3 cable
3 comer
.597
.567
T
s
TIs
Tm=T1
TRIME t (s)
12.01
14:40
Tme
1/rm
Waveform
2386.52
711
16.752 ig1
5.552 sun
4.38 K
Total inletflow
Inlet pressure
Inlet temperature
Series with Ul & U2 coils
Mode AC
Description Round-eded pulse
Comecutin
PANCAKEOUrr
INIT OUTIEr
70.77
67.59
X
7.930
s
AC LOSS [J]
AT
PEAK
5.034
3.823
269
Quench time
TENOTRATURE DK
ouT-
No
5kA
Tm=TI
MASS FLOW [g/]
PANCAO
Quendi?
4.14____
6_____
275
82.5
4777.23
3191
18 kA
3 s
7.20 kA/s
US-DPC Test Report
270
Runnumber
January 1992
DM Shot number 177
Date
InTet tempmrOt
6.147
2.8
2.195
0.357
Bm
Tn
Bmdfm
16.42 ifs
5.503 stm
4.401 K
Total iet flow
Inletpressure
Cosmeciiou Series with Ul& U2 coils
Mode AC
Description Round-edged pulse
14:51
Time
12/19/90
1/rm
Im
T
s
TIs
Flattop
hI/rm
20 kA
3 s
7.14 kA/s
1/s
Waveform
(lmjTI)t + 0.281m sin(180t11)
Im
-
-
T=
T3=
-
2
0.5s
Quend?
No
20OkA
l=
Im
0
TIME t (s)
MASS FLOW (g/s]
PANCAKE
E
.875
2
3 cable
3 comer
4 comer
4 cable
5
6
11.75
.695
.586
.619
-.67
4.164
3795
Run number
271
4.401
OU
r
PEAK
4.720
0.345
4.338
4.900
0.562
4.48
4.2615.045
6.84
5.94
X
5.005
4.825
-8.8-
0.525
0.564
4.540
3.860
11.380
9.800
J]
X
152.2
119.5
271.7
5.163
1861
1866.162
7988.863
5851
II_
DM Shot number 178
Dise
Total inlet flow
Inletpressure
Series with Ul & U2 coils
Mode AC
Description Round-edged pulse
ACLOSS
AT
D AL
4.375
Conmecamn
s
[
-E-PACALORS
OUTlEr ''
INLEa
Quench time
Tm=T1
Bin
TM
Bm/fm
g/s
X aun
4.403 K
Inlettealperaturm
Time
12/19190
1/rIm
6.761
3
2.254
0.333
15:02
T
s
T/s
Im
Fla top
Tin/m
I/s
Waveform
T1
72 =
(Inwrl)t+0.281m sin(180t/T1)
T3=
3-
--
Im=
I
I
Ii
3s
3s
0.5s
Quench?
No
22kA
0
TIME t (s)
MASS FLOW [g/s]
PANAKEOOrnEr
m.Er
INK
2
3 cable
3 comer
4 comer
4 cable
5X
6
U
X
X
Quenchtime
Tm=T1
TEACELOSSE[TK
INL
4.403
X
x
X
4.164
AC LOSS [ J]
,, AL
4.383
PEAK
4.817
AT
0.434
4.337
4.476
4.26
5.034
6.862
5.935
5.045
5.155
4.990
0.708
0.679
0.730
13.650
6.788
12.200
6.265
_X
276
X
X
X
X
X
s
22 kA
3 s
7.33 kAjs
US-DPC Test Report
Dwe
DM Shot uaber 179
272
Run number
January 1992
Connection Series with U1 & U2 coils
Mode AC
Description Singletrapezoid
Inlettemperature
Wavcforn
Im
16.919 gFS
5.977
4.353 K
Total inlet flow
Inletpressue
0.5,
-12=
STQuendi
4.617
2
4.293
4.753
.98
4.869
0.430
98.5
4.685
0.463
87.24
.624
-.61
5.012
-
4.111
273
83.81
4.222
3
3.919
Run number
0.287
0.460
4.439
4.353
6.74
7.550
5.85
X
6.515
Im..-.-
0,
Deft
T0=
T2=
a
2497.55
691
1537
-
Im=
5.953
4.362 K
1.5s
0.Ss
Ban 5.532 T
1.5 s
'M
Tun
3.688 T/s
Bm/rm
1/rIm 0.667 1/s
Quench ?
5
Im
Flat top
Tm/rIm
No
i8kA
Tm=T1
Quench tima
MASS FLOW [/s]
PANCAKE
6=
15:48
I
TIME (s)
1
2
3 cable
3
4 corner
4 cable
Tue
12119/90
16.951 q/8
Total inlet flow
Inletpressure
Inlet tempraoure
Waveform
185.74
12
679
0.810
0.665
DM Sho number 180
Connection Series with UI & U2 coils
Mode AC
Description Singletrapezoid
s
ACLOSS (3]
AT
.63
.068
No
?
MK]
4.33
6
In/Im
Quench dam
PEAK
1
12.02
7.376 T s
1.333 1/s
ACLOSS
oUnA
PEAK
1.023
12.05
34
3.878
18 kA
0.5 s
24.00 kA/s
18kA
Tm=TI
MASS FLOW [g/s]
T
PALA T
OUfLEr ' IOUNr INIAL
3 comer
4 corer
4 cable
Im
Flat top
T1= 0.75s
-
TIME (s)
3 cable
15:38
5.532 T
.75 s
Bm
'nn
T
Bn/lam
1/I'm
Im=
P tCA[
TiMe
12119/90
.681
.633
.58
-.62
4.362
4.121
4.303
4.447
4.231
5.014
6.76
5.87
=X
AT
4.573
0.233
4.670
0.367
4.780
4.599
0.333
0.368
7.130
6.508
277
0.370
0.638
70.33
80.27
141.2
221.47
2.604
400
402.64
1947.404
1253
18 kA
0.5 s
12.00 kA/s
US-DPC Test Report
DM Shot number 181
274
Rua number
January 1992
Total inlet flow
Inletpressure
Inlettemperature
Series with Ul & U2 coils
Connection
Mode
Doe
AC
Description Single trapezoid
12/19/90
Tm
fs
BIm
5.532 T
5.910 atm
4.358 K
TM
5 s
Flattop
1.106 T
is m/'rm
Bm/Im
72= 0.Si53
18 kA
0.5 s
3.60 kA/s
0.200 1/s
1/rIm
Waveform
16:00
Tune
T1=
im--
an
No
Quench ?
18 kA
0 tT
TIME (s)
Tm=Tl
Quench ime
TEMPERATURE K]
s]
MASS FLOW
MANCAS FLO (OglEr
INLET OUILET
INIAL
AC LOSS [J]
4.34
PEAK
4.532
2
4.299
4.588
3 cable
3 corner
4.444
4.228
4.705
4.512
0.192
0.289
0.261
0.284
7.920
6.207
1.160
0.340
S
X
4.358
AT
X
X
X
5.016
4 comer
X
4 cable
4.118
5X
x
6.76
5.867
X
6
275
Run number
_
X
_
_
__
DM Shot number 182
Dee
Tum
12/19/90
16:11
6.761 T
1s
6.761 TIs
1.000 1/s
Bu
Tm
Bm/Im
18.376 gas
4.982 asm
4.357 K
Total inlet flow
Inletpressure
Inlet temperture
Connection Series with Ul & U2 coils
Mode AC
Description Round-edged pulse
X
1/'m
Im
Flattop
n/I/m
22 kA
0.5 s
22.00 kA/s
Waveform
TI
(ImflI)t + 0.281m sin(180tjr1)
-
--
~,IT2
-T3=
=
Is
0.5s
0.5s
Im=
Quench ?
Yes- Coil C crossover turn and other
part.
Quench detection sequence
22kA
USMC03,USMC02
0
TIME t (s)
MASS
PANCAKE
Tm=TI
TEMPERATURE [K]
MASSFLOWWsl
FLOW
[g/s]
INLT
Quench time
INLOUEr
i.AL
OT
r
PEAK
CLS
ACLOSS
AT
*
4.302
S1892
3 cable
.719
3 comer
4 corner
4 cable
.636
.559
-.613
5
6
3.798
4.357
5.010
5.380
5.200
5.745
7.820
6.725
4.438
4.231
5.02
6.755
4.11
5.865
X
I
278
0.708
0.942
0.969
0.725
1.065
0.860
X
x
X
X
X
X
X
.798
3
J
s
US-DPC Test Report
Comection
Mode
AC
m
oid with s
Dewaion Tr
rspipe
Waveform
Au
4.351
(
-
77 =
T5 =
22
80
JA=
f=
B
MELT
1
5
6
1AL
4.351
4.790
0.459
5.041
0.749
5.195
0.756
-
-
4.221
5.019
6.739
5.020
5.520
7.910
0.799
0.501
1.171
5.85
6.775
0.925
6.4-
4.111
Tra
-
X
X
X
X
Inletpressure
Inlet temperature
Waveform
I s
0.5s
77=
(in -i-d-T3
1s
Tm
6.761 T
1.000111;
Flattop
m/rm
No
Quench?
0.5s
=
in
6.761 T
Ba/rm
4.365 K
TI=
f Hz Sinusoidal ripple
s)
itude
Bin
17.744 dfs
5.861 -p
16:50
Time
12/19190
Due
Total inlet flow
id with superimnosed
rippi-1/I'm
X
X
-
DM Shot mber 184
277
s
[J]
ATACLOSS
PEAK
4.292
4.439
Connection Series with Ul & U2 coils
Mode AC
Desiption
20 Hz
4.331
-
.616
.534
-.65
1
3.809
Runnumber
USMC03, USVB5-6,USMCO1
-
IU E
1.113
.705
T4= 0.255
T5=
l.25s
Is=
f=
T4
T
MASS FLOW g/s]
IOOLET
-
5
6
4.365
-. 62
4.125
3.927
1
s
Quench time
ACLOSS (3
-
-
WM4AL
4.344
4.304
1
.689
.752
20Hz
ACLOSS [J]
VNLB IUE
2
3 cable
3 corner
4 comer
4 cable
150A
T+T=T1
'
Tim- (S)
PANCAKE
s
22.00 kA/s
kA
A
Quench time 1.23
MASS FLOW [g/s]
2
3 cable
3 comer
4 corner
4 cable
Tm/rm
Quench doteodon sequence
-TTmnT
r4
22 kA
0.5
Flat top
Yes- Coil C crossover turn.
Quench 7
1.25 s
in=
PACAK
1/Tm
3 = 0.5
T4= 0.25s
d
s
6.761 TIs
1.000 1/s
Bm/nn
K
Ia
0.5sa
Tl=
f Hz Sinusoidal ripple
1
T'
4.995
IM
6.761 T
Bra
17.488 xfs
Totalinleaflow
Inlet pressure
Series with Ul & U2 coifs
16:38
Tie
12119/90
Die
DM Shotnmber 183
276
Run number
January 1992
4.49
4.231
5.014
6.779
5.882
6.4
AT
PEAK
4.754
0.410
4.980
0.676
5.110
0.661
4.928
5.512
7.840
0.697
0.498
1.061
6.770
0.888
1
279
154.6
159
161
51
818
32
3498.6
2155
1
1
1
22 kA
0.5 s
22.00
hA/s
US-DPC Test Report
Run number
January 1992
DM Shot mber 185
278
Series with Ul & U2 coils
AC
Thavezidwithsuperimposed
ripple
Connection
Mode
Description
Waveform
Doe
Inletpressure
Ilettemperatwe
1/rm
Uw ripple
/a f Hz(7Sinnsoidal
Ti -
T1=
I'=
T3 =
Is
0.5s
#
ia=
f=
a
T4
TIME
MASS
PANCAKE
-
1
3 cable
3 corner
4 comer
.681
4 cable
5
Run number
4.365
A
PA
4.353
4.826
4.306
5.085
4.452
5.225
.681
4.234
5.052
.611
-. 567
5.021
6.775
5.750
8.110
5.889
6.820
4.126
3.843
DM Shot number 201
279
20Hz
Quench
Comection
Mode
Description
1.08
tm_ 1.0
ss
AC LOSS [IW
Onzr
INIE
.
12.402
kA
15D A
-
1.183
2
ACLOSS [1J
AT
0.473
0.779
___AT
X
X
0.773
0.818
0.729
1.335
0.931
Dl
X
X
X
X
12/20/90
10:08
Tune
Total inlet flow
g/s
Bn
T
Inlet prssure
Inlet temperature
X ain
x K
Tm
Bm/nm
X s
1/rm
1/s
T/s
In
Flat top
Tm/nm
Waveform
Quech ?
Quenchtie
MASS
PANCAKE
I
2
3 cable
3 corner
4 corner
4 cable
FLOW
TEPR
[g/s]
OUTLEr' U4r
MNET
X
UEW
OUTr
PEAK
AL
ACLOSS [J)
AT
4.421
X
X
X
X
X
x
6
X
23 kA
0.5 s
23.00 kA/s
part.
Tm=T1
ouTzr
Tm
Flat top
im/rm
ha
Quench detection sequence
USMC03, USVB5-6,USMCOI
(a)
FLOW [g/s]
NLEr
23
fiTm=
T
a
T
1/s
Yes- Coil C crossover turn and other
Quands?
.5s
T4= 0.25s
TS = 1.25 s
17:02
7.069
I
7.069
1.000
Bm
Tn
IBmI/m
17.428 Ws
4.995 an
4.365 K
Totalinletflow
Tme
12/19F90
X
4.352
4.378
4.166
4.418
14.509
4.174
6.89
X
X
X
X
X
1
280
s
X kA
s
kA/s
US-DPC Test Report
January 1992
Runs 279 through 305 were AC tests of the background field coils Ul and U2 with the
US-DPC electrically disconnected. The intent of these tests was to collect AC loss data on
the US-DPC with no transport current while the background field coils were undergoing a
stability investigation by pulsing with various waveforms. However, the helium flow to
the US-DPC was too low for the measurement range of the flow meters, and no AC loss
data was obtained.
281