VACUTAP® VR®
THE ALL-AROUND
ON-LOAD TAP-CHANGER.
TR A N S F O R MER C ONTROL
VACUTAP ® VR ® . VACUTAP ® VR I HD
VACUTAP® VR® – PROFIT FROM
LOW TOTAL COST OF OWNERSHIP.
With the introduction of vacuum technology in on-load tap-changers in the late
1980s, we were pioneers in this field. Since then, this technology has seen consistent
further development. The result: on-load tap-changers of the VACUTAP® series that
are used with great success worldwide.
VACUTAP® VR® on-load tap-changer
In 2006, VACUTAP® VR® and VV® were the first
built-in on-load tap-changers worldwide to enable
300,000 tap changes without maintenance. No periodic maintenance is prescribed. Concretely speaking,
this means maintenance-free performance for
nearly all network applications.
The VACUTAP® VR I HD, which was developed
specifically for heavy-duty industrial applications,
even performs 600,000 switching cycles between
maintenance. These longer maintenance intervals
mean higher availability of transformers, less process
downtime and lower costs for you over the entire
useful life.
MR vacuum switches are used in steel and aluminum
smelters around the world as well as on drilling rigs
in areas that pose an explosion hazard or in chemical
operations with a corrosive or dirty environment.
This is because MR is the first and only manufacturer
of on-load tap-changers to have VV® and VR®
tap changers certified in accordance with Directive
94/9/EC (ATEX) (conforms to IEC and NEC 505 in
North America).
The VACUTAP® VR® on-load tap-changer convinces
users around the world through its flexibility. It
proves its value in everyday use, such as for frequent
switching of overcurrents or for extreme requirements for transformer availability. The scope of
application of the VACUTAP® VR® also includes auto
transformers, regulation at the beginning of delta
windings and hermetically sealed transformers.
VACUTAP® VR I HD on-load tap-changer
The VACUTAP® VR I HD was optimized specifically
for applications with an above-average number of
tap-change operations and ensures precise switching
operations under the toughest conditions. This includes furnace operation as well as applications such
as electrolysis, phase shifters or HVDC (high-voltage
direct current) transmission.
3
VACUTAP ® VR ® . VACUTAP ® VR I HD
VACUTAP® VR® – ROBUST AND
VERSATILE FOR ANY APPLICATION.
Our on-load tap-changers of the VACUTAP® VR® family offer you unbeatable
reliability and efficiency. Ideally suited for applications in power transformers,
the VACUTAP® VR® is a real alternative to conventional oil tap changers.
Including all of the advantages of vacuum technology.
Environmentally friendly technology –
sustainability in everyday use
The VACUTAP® VR® distinguishes itself with its environmentally friendly vacuum technology. In contrast
to conventional oil circuit engineering, this ensures
that no arcing occurs in the insulating oil. Therefore,
no oil filter unit is required in operation. Additionally,
this new generation of tap changers is designed for
use with selected alternative insulating fluids.
Benefits:
INo arcing in the tap-changer oil
INo oil filter unit needed
IClean oil makes maintenance work easier and
faster Maintenance work
ISubstantially reduced frequency of maintenance
compared to conventional oil circuit engineering
An added bonus: The switching capacity remains
constant throughout the entire operating life of the
vacuum interrupters. The vacuum level in the tubes
is improved even further during switching operations
because the metal vapor plasma generated by the
arc from the contact material binds with free gas
molecules (getter effect). There is also no oxidation
on the contact surface, thereby ensuring consistently
good contact resistance.
64 . 7
VACUTAP® VR I HD – DEVELOPED FOR
THE HIGHEST SWITCHING FREQUENCIES.
Industrial applications place the most stringent requirements on transformer
availability. The VACUTAP® VR I HD enables you to minimize downtime and
achieve the best possible utilization.
Take advantage of less frequent
maintenance intervals
The new VACUTAP® VR I HD is not subject to timebased maintenance; rather, it has a maintenance
interval of 600,000 switching operations. Replacement of the diverter switch insert is only necessary
after 1.2 million switching operations. This means
even lower operating costs, coupled with the highest
quality and the highest environmental and safety
standards. You profit from less process downtime and
maximum productivity.
Tested by MR – maximum safety during
long-term operation
We have also consistently implemented the strict
MR safety philosophy during the development of the
VACUTAP® VR I HD. In our globally unique Testing
Department, it was tested in mechanical and electrical service life tests well beyond the requirements of
IEC standards. For example, switching performance
tests were carried out with 600,000 switching
operations instead of the required 50,000 switching
operations.
Mo core minctendi atum doluptatiant
iditiun dis ad quias essi aut que nempos
quiatiam adit quam est, atet essunt officatus ad que vel exerciunt ute voluptas que estiasi nvenda veliquat utatur
sit, volupis dolest ma am quidi andaes
moa ndunt rem andiorum ventiistet anderorem dolecuptat verunt que qui.
5
VACUTAP® VR® – A COMPARISON
OF TYPES AND MODELS.
Types and variants for VACUTAP ® VRC, VRE / OILTAP ® M, RM
VRE
Uim : 3300 V
VACUTAP®
Uim : 4000 V
OILTAP
®
VACUTAP
OILTAP ®
®
3-phase
3-phase
VRC III 400Y
M III 350Y
VRC III 550Y
M III 500Y
VRC III 700Y
M III 600Y
VRE III 700Y
Um 72.5...245 kV
Um 72.5...245 kV
VRC
RM III 600Y
VRC II 402
M II 352
VRC II 552
M II 502
VRC II 702
M II 602
1-phase
1-phase
VRC I 401
M I 351
VRC I 551
M I 501
VRC I 701
M I 601
VRE I 701
RM I 601
VRC I 1001
M I 802
VRE I 1001
RM I 1201
Um 72.5...300 kV
Um 72.5...300 kV
2-phase
M I 1203
VRC I 1301
M I 1203
VRE I 1301
RM I 1201
Number of tap selector plane pairs (total tap selector planes):
3 (6)
2 (4)
1 (2)
Types and variants for VACUTAP® VRD, VRF, VRG / OILTAP® R
VRF / VRG 1)
Uim : 3300 V
VACUTAP
Uim : 4000 V
OILTAP
®
®
VACUTAP
OILTAP ®
®
3-phase
3-phase
VRD III 1000Y
R III 1200Y
VRF III 1000Y
R III 1200Y
VRD III 1300Y
R III 1200Y
VRF III 1300Y
R III 1200Y
Um 72.5...245 kV
Um 72.5...245 kV
VRD
1-phase
R II 1202
1-phase
VRF I 1001
VRD I 1301
M I 1203
VRF I 1301
R I 1201
R I 1201
VRF I 1601
R I 2002
VRF I 2602 2)
R I 2402 2)
Number of tap selector plane pairs (total tap selector planes):
3 (6)
1)
6
VRG: identical variants to VRF, but with tap selector size "E"
2 (4)
2)
R I 1201
1 (2)
Forced current splitting by two parallel winding branches required
Um 72.5...362 kV
Um 72.5...300 kV
2-phase
VRF II 1302
Example
On-load tap-changer designations
Type
VRF
VACUTAP® VRC
VRC
VACUTAP® VRE
VRE
VACUTAP® VRD
VRD
VACUTAP® VRF
VRF
VACUTAP VRG
VRG
®
Number of phases
Ium (in A)
Number of parallel
main switching
contacts
1 phase
2 phases*
II
3 phases*
III
VRC
400
VRC
550
VRC, VRE
700
VRC, VRE, VRD*, VRF, VRG
1000
VRC, VRE, VRD, VRF, VRG
1300
VRF, VRG*
1600
VRF, VRG *
2600
0
1 (1-phase)
1
2 (1-phase)*
2
Applications
For use in neutral point only
Y
Um (in kV)
VRC, VRE, VRD, VRF, VRG
72.5
VRC, VRE, VRD, VRF, VRG
123
VRC, VRE, VRD, VRF, VRG
170
VRC, VRE, VRD, VRF, VRG
245
VRC, VRE, VRD, VRF, VRG
300
VRF, VRG
362
VRC
VRC, VRE, VRD, VRF
C
VRC, VRE, VRD, VRF
D
Mid-positions
– 72.5 /
–
/
C
–
10
19
1G
R
–
Basic connection diagram
DE
VRG
Number of max.
operating positions
with change-over
selector
Y
B
VRC, VRE
Number of max.
operating positions
without changeover selector
1300
I
1 (3-phase Y)*
Tap selector size
III
E
10
10
12
12
14
14
16
16
18
18
19
19
23
23
27
27
31
31
35
35
0 mid-positions (without change-over
selector)
0
1 mid-position
1
3 mid-positions
3
Change-over
selector
Reversing change-over selector
W
Coarse tap connection
G
Tie-in measures
Tie-in resistor
R
Potential switch
S
Potential switch with tie-in resistor
P
*) not available for on-load tap-changer VR I HD
7
VACUTAP ® VR ® . VACUTAP ® VR I HD
VACUTAP® VR® AND VACUTAP® VR I HD
TECHNICAL DATA.
Description
VRC III 400Y
VRC III 550Y
VRC III 700Y
VRC II 402
VRC II 552
VRC II 702
VRC I 401
VRC I 551
VRC I 701
VRC I 1001
VRC I 1301
VRE III 700Y
VRE I 701
VRE I 1001
VRE I 1301
VRD III 1000Y
On-load tap-changers
Number of phases and application
31)
31)
31)
2
2
2
1
1
1
1
1
31)
1
1
1
31)
Max. rated throughcurrent Ium (in A)
400
550
700
400
550
700
400
550
700
1000
1300
700
700
1000
1300
1000
Rated short-time current (in kA)
6
8
10
6
8
10
6
8
10
12
15
10
10
12
15
12
Rated duration of short-circuits
(in s)
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Rated peak withstand current
(in kA)
15
20
25
15
20
25
15
20
25
30
37.5
25
25
30
37.5
30
Max. rated step
voltage Uim (in V)2)
3300
3300
3300
3300
3300
3300
3300
3300
3300
3300
3300
4000
4000
4000
4000
3300
Step capacity PStN (in kVA)
1320
1500
1500
1320
1500
1500
1320
1500
1500
1500
1500
2800
2800
3750
3750
1500
Rated frequency (in Hz)
Operating positions
1)
Neutral point
without change-over selector: max. 18, with change-over selector: max. 35
2)
T he maximum rated step voltage may be exceeded by 10 % due to overexcitation of the transformer if the step capacity is not exceeded.
Step capacity diagram1) VRC/VRE and VRC/VRE I HD
4500
4000
1500 kVA
500
0
0
200
400
600
VRC I 1001
VRC I HD 1001
1000
VRC III 700 Y, VRC II 702
VRC I 701, VRC I HD 701
1500
VRC III 550 Y, VRC II 55 2
VRC I 551, VRC I HD 551
2000
800
1000
VRC I HD 1301
VRC I 1301
2500
VRE I HD 1301
VRE I 1301
VRE III 700 Y
VRE I 701
VRE I HD 701
3000
VRC III 400 Y, VRC II 402
VRC I 401, VRC I HD 401
Rated step voltage Ui [V]
3500
VRE I 1001
VRE I HD 1001
3750 kVA
1200
1400
Rated through-current Iu [A]
1) For electrical arc furnace operation, please observe the step capacity diagrams in the technical data of the VACUTAP® VR® on-load tap-changer.
8
VRD III 1300Y
VRD I 1301
VRF III 1000Y
VRG III 1000Y
VRF III 1300Y
VRG III 1300Y
VRF II 1302
VRG II 1302
VRF I 1001
VRG I 1001
VRF I 1301
VRG I 1301
VRF I 1601
VRG I 1601
VRF I 26023)
VRG I 26023)
VRC I HD 401
VRC I HD 551
VRC I HD 701
VRC I HD 1001
VRC I HD 1301
VRE I HD 701
VRE I HD 1001
VRE I HD 1301
VRD I HD 1301
VRF I HD 1001
VRG I HD 1001
VRF I HD 1301
VRG I HD 1301
31)
1
31)
31)
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1300
1300
1000
1300
1300
1000
1300
1600
2600
400
550
700
1000
1300
700
1000
1300
1300
1000
1300
15
15
12
15
15
12
15
19
26
6
8
10
12
15
10
12
15
15
12
15
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
37.5
37.5
30
37.5
37.5
30
37.5
47.5
65
15
20
25
30
37.5
25
30
37.5
37.5
30
37.5
3300
3300
4000
4000
4000
4000
4000
4000
4000
3300
3300
3300
3300
3300
4000
4000
4000
3300
4000
4000
1500
1500
3000
3000
3000
3750
3750
3750
6000
1320
1500
1500
1500
1500
2800
3750
3750
1500
3750
3750
50...60
without change-over selector: max. 18, with change-over selector: max. 354)
4)
Forced current splitting by two parallel winding branches required
VRC in special design with multiple coarse change-over selector up to max. 107 positions.
Step capacity diagram1) VRD, VRF, VRG2) und VRD/VRF/VRG2) I HD
4500
3750 kVA
4000
VRG I 1001
VRF I 1001
3000 kVA
3500
VRG I 1301
VRF I 1301
VRG I HD 1301
VRF I HD 1301
1000
500
0
200
400
600
800
1000
1200
VRF I 2602
VRG I 2602
1500
VRF I 1601
VRG 1601
2000
VRD III 1300Y
VRD I 1301
VRD I HD 1301
VRF III 1000Y
VRG III 1000Y
1500 kVA
2500
VRF III 1300Y
VRG III 1300Y
VRF II 1302
VRG II 1302
3000
0
6000 kVA
VRG I HD 1001
VRF I HD 1001
VRD III 1000Y
Rated step voltage Ui [V]
3)
1400
1600
1800
2000
2200
2400
2600
Rated through-current Iu [A]
1) For electrical arc furnace operation, please observe the step capacity diagrams in the technical data of the VACUTAP® VR® on-load tap-changer.
2) VRG: Identical versions as VRF but with tap selector size "E"
9
VACUTAP ® VR ® . VACUTAP ® VR I HD
UNSHAKABLE QUALITY.
Earthquake test of the VACUTAP® VR® on-load tap-changer in the test center of the IABG
10
The VACUTAP® VR® offers you the highest quality and precision – even under
the most extreme conditions. The testing and analysis center of the IABG
has confirmed that the VACUTAP® VR® even withstands earthquakes.
In a complex test program, static load tests, various earthquake
tests and extensive calculations were carried out on the on-load
tap-changer using a Finite Element Model. All tests were carried
out in accordance with the following standards:
I IEC 68-3-3, German edition EN 60068, Part 3-3, Environmental
testing; Seismic test methods for equipment; Guidance
I IEC 68-2-6, German edition EN 60068, Part 2-6, Environmental
testing; Test Fc and Guidance: Vibration sinusoidal
I IEC 68-2-59, German edition EN 60068, Part 2-59, Environmental
testing; Test Fe and Guidance: Vibration sine-beat method
I IEC 68-2-57, German edition EN 60068, Part 2-57, Environmental
testing; Test Ff and Guidance: Vibration time-history method
I IEEE 344, Recommended practice for seismic qualification
of class 1E equipment
I IEEE 693, Recommended practice for seismic design of substations
I IEC 60980, Recommended practices for seismic qualification
of electrical equipment of the safety system for nuclear generating
stations
I UBC, Uniform Building Code, chapter 16, division IV
I IBC, International Building Code
I Eurocode 8, Design of structures for earthquake resistance
I RCC-E Section B, Seismic qualification and approval
I Transelec, ETG-A.0.20; Consideraciones Antisismicas
I IEC 1166, Guide for seismic qualification of high-voltage
alternating circuit-breakers
I K TA 2201.4, Design of Nuclear Power Plants against Seismic Events
I JIS S 1018, Japanese Industrial Standard, test methods of vibration
and earthquake
Guaranteed earthquake-proof – confirmed by
the testing and analysis center of the IABG.
11
VACUTAP ® VR ® . VACUTAP ® VR I HD
ENVIRONMENTALLY FRIENDLY
AND FORWARD-LOOKING.
A future trend in transformer technology has kept our developers busy: the
increasing demand for higher fire safety, greater compatibility with the environment
and largely maintenance-free performance. We have found a solution. It is based
on the connection of our VACUTAP® technology with alternative insulating fluids.
Alternative insulating fluids with natural esters are
made from plants such as rapeseed, soy, sunflower
or coconut. Filtering these fluids and adding additives
results in a high-quality electrical insulating fluid
that provides exactly the advantages that will be
required in the future.
Fireproof
A variety of fluids is available on the market that fulfill fire protection requirements (class K fluids with a
flashpoint > 300°C to IEC 61100). The natural esters
seem particularly advantageous in this regard.
Permitted VACUTAP® tap changers:
VACUTAP ® VR®: – VRC 400/550/700, VRC I 1001/1301
– VRE 700; VRE I 1001/1301
Water hazard class*
Mineral oil
1
HMWH
1
Permitted oil temperature (°C) for tap-changer operation
Silicone oil
1
On-load tap-changer type
Synthetic esters
Natural esters
Synthetic esters
0
VACUTAP® VRC/VRE
-18 to +115
-10 to +115
Natural esters
0
Biodegradable
Permitted ester fluids:
I Synthetic ester:
I Natural ester:
– MIDEL 7131 (M&I)
– ENVIROTEMP 200 (Cargill)
– ENVIROTEMP FR3 (Cargill)
– BIOTEMP (ABB)
The environmental friendliness (biodegradability) of a
material can be evaluated by, for example, its classification into a water hazard class. Ester fluids have an
advantage in this regard because they are classified
as "non-hazardous to water".
Please note: The use of VACUTAP ®
tap changers in conjunction with
ester fluids is a special application.
Our experts will work with you
to clarify the possibilities for the
specific application.
12
350
50
0
Silicon oils
100
Natural esters
150
Synthetic esters
200
High molecular-weight
hydrocarbons
300
Mineral oil
Flashpoint (°C) (ASTM D92, Open Cup)
Class K fluids, flashpoint > 300°C to IEC 61039
250
*Classification in accordance
with the German Administrative
Regulation on the Classification
of Substances hazardous to waters
into Water Hazard Classes
(VwVwS), Germany 1999:
WGK 0 = non-hazardous to water,
WGK 1 = low water hazard
VACUTAP® VR® – YOUR FUTURE
IS MAINTENANCE-FREE.
Maintenance-free and long-lasting
I 300,000 reliable switching operations for the VACUTAP ® VR® normally make
maintenance unnecessary in grid operation
I Longer maintenance intervals for the VACUTAP® VR I HD of 600,000
switching cycles means even lower operating costs in electrical arc furnace
operation
Maximum operational reliability
I Tested in mechanical and electrical service life tests well beyond the
requirements of IEC standards.
I Suitable for use in hazardous areas in accordance with
Directive 94/9/EC (ATEX) (conforms to IEC and NEC 505 in North America)
I Earthquake-proof performance confirmed by the testing and analysis center
of the IABG
Low life cycle costs
I Thanks to state-of-the-art vacuum technology, maintenance work is faster
and easier and only minimal disposal costs for dirty insulating fluids arise.
I Support in cost-conscious transformer planning with TAPMODELLER®
Designed with future requirements in mind
I VACUTAP® VR I HD can be retrofitted in all previously delivered VACUTAP® VR I
units
I Designed for use with alternative insulating fluids
G
EINFACHE VERWALTUNG
13
Maschinenfabrik Reinhausen GmbH
Falkensteinstrasse 8
93059 Regensburg, Germany
Phone: +49 941 4090-0
Fax:
+49 941 4090-7001
E-mail: info@reinhausen.com
www.reinhausen.com
Please note:
The data in our publications may differ from
the data of the devices delivered. We reserve
the right to make changes without notice.
IN3525167/00 EN – VACUTAP® VR® –
F0310900 – 01/16 – uw –
©Maschinenfabrik Reinhausen GmbH 2013
THE POWER BEHIND POWER.