g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
Wave Cast Type
SCB Series of Cast Resin
Dry-Type Power Transformers
Technical Manual
Shanghai GE Guangdian CO., LTD
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
Table of Contents
1. Introduction of the Enterprise...................................................................3
2. Features of Products .................................................................................4
3. Core.............................................................................................................5
4. Windings.....................................................................................................6
5. Accessories................................................................................................8
6. On-load Tap Switch ...................................................................................9
7. Technical Specifications .........................................................................10
8. Tests .........................................................................................................12
9. Dry-Type transformer dimensions and terminal drawings...................12
10. Specifications and dimensions for SCB type 10kV three-phase cast
resin dry-type distribution transformer with off-circuit tap changing.....13
11. SCZB9 type 10KV dry-type distribution transformer with on-load tap
changing.......................................................................................................15
12. Specifications and dimensions for SCB9 type 1KV and lower threephase cast resin dry-type isolation transformer .......................................17
13. Specifications for SCB9 type 10kV three-phase cast resin dry-type
power transformer .......................................................................................18
14. Specifications for SCB9 type 20kV three-phase cast resin dry-type
distribution transformer ..............................................................................18
15. Specifications and dimensions for SCB9 types 35kV three-phase
cast resin dry-type distribution transformer .............................................19
16. Specifications for SCB9 type 35kV three-phase cast resin dry-type
power transformer .......................................................................................20
Page 2 of 29
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GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
17. Dry type transformer with protection enclosure .................................21
18. Inquiry, Order .........................................................................................27
1. Introduction of the Enterprise
Shanghai GE Guangdian Co., Ltd. has introduced advanced production
technology, facilities and testing instruments in designing, manufacturing and
selling three-phase cast resin dry-type transformers, which are also exported
to the United States and all over the world.
Our products have passed all the quality tests carried out by the National
Center of Quality Supervision and Inspection for Transformers, the shortcircuit test for SCB type distribution transformers by KEMA lab, and the test of
resistance to vibration for transformer with cubicle and connection busbar run
by the Main National Lab for Civil Engineering Disaster Prevention of Tongji
University.
Shanghai GE Guangdian Co., Ltd.
Dry-type Transformer with Outdoors Enclosure IP23
Page 3 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
Certificate of the ISO 9001 Quality System
SCB9-10000/35/10.5 large-scale
dry-type power transformer
2. Features of Products
•
•
•
•
•
•
Safe, fire self-extinguishing, fireproof, low noise level, pollution-free;
available at load center.
Made up of all-copper foil, the H&L voltage windings have high short
circuit withstand capabilities, high lightning impulse withstand capability
and high reliability.
The H&L voltage windings are molded with epoxy resin on high
vacuum. The partial discharge is lower. Air channels can be installed.
Humid-resistant and high heat dissipating ability. It is able to run
normally under the relative humidity of 100%. Rated capacity can
increase 40% as air-cooling.
Convenient installation; easy maintenance; low losses and general
operation cost.
Temperature display and controlling system, which resists the
interference from electric and magnetic field, is installed on windings to
ensure safe operation of transformer. Computer interface can be fixed
so that it can be controlled and monitored remotely.
It can be equipped with protection enclosure and connection busar,
which enables it to be used both indoors and outdoors. Indoor built-up
structures may be immune to the limitation of the doorframes in the
installation location. Connection busbar can be directly connected to
the busbar of switchgear, which is really convenient.
Page 4 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
Dry-type Distribution Transformer with
Protection Enclosure IP30
ZSCB-1500/15.75/0.5 Dry-type field Transformer
SCB9-3150/10/0.4 Dry-type
Distribution Transformer
SCB9-10000/35/10.5 Dry-type
Distribution Transformer
3. Core
•
Made of high-quality cold-rolled grain-oriented steel sheets
Page 5 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
•
•
•
•
Mitred type adopts 45 degrees cuts; multistage step-by-step stacking
No punching holes on yokes; connecting plate structure
Coated with resin-emulsion paint. The surface of yokes locking
armature has been treated by electrostatic painting to protect them
against humidity, rusts and salt fog.
It has the advantages of lower no-load losses and current as well as
lower noise.
Slitting line for silicon steel sheet
(Japanese plant)
Cut-to-length line for silicon steel sheet
(Swiss plant)
Core with Non-stacking Top Yoke
Mitred type core of the limbs and the yokes
4. Windings
•
All the low and high voltage windings are made up of copper bands
(foils). Voltage between layers is low, while layer capacity is great. Its
Page 6 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
•
•
•
•
•
•
lighting impulse withstand capacity is high. The reactance of high and
low voltage is the same. There’s no helical angle. For ampere turns of
the high and low voltage windings are best leveled, the windings are
capable of withstanding short circuit. Therefore, they have high
operating reliability.
Molded with epoxy resin at high vacuum, the high and low voltage
windings have well electrical and mechanical performance. Partial
discharge of them is less than 5pC.
High and low voltage winding can be equipped with ventilating air
passages according to requirements for heat dissipation. The isolating
resin on the surface is 2.0～2.5mm thick in average, ensuring the
temperature increase and strength of the windings and securing the
30-year service life.
Because of the quartz powder on the epoxy resin and the glass-fiber
net banded inside and outside the windings, they have high heatdissipating ability, humidity-resistance and flame resistance. There is
no need to worry about cracking. They can work normally under the
humidity of 100%. Their flame-resistant performance accords with the
Britain BS7806F2.
The interior of the low and high voltage windings are credibly welded
automatically and protectively by argon with low resistance.
The imported equipment of high-precision and automation and highquality imported isolating materials ensure the stable high quality and
the safe operation of the windings.
F and H stands for the two insulation levels. The temperature-rise
limitation and voltage combination can be designed according to the
customer’s specific requirements.
H&L voltage epoxy resin windings
With heat-dissipating air passages
H.V windings casted with epoxy
resin for special purpose
Page 7 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
Low voltage foil winding machine
(Swiss plant)
Vacuum casting plant
(Italian plant)
High voltage foil winding machine
(Swiss plant)
Large-scale 35KV winding casted with epoxy resin
5. Accessories
Temperature Controller
• A set of temperature controller can be set on the transformer to ensure
its normal services life through displaying and controlling the
temperature of the transformer windings in work.
• The temperature measure sensors, Pt100 platinum resistant, are
flushed into low voltage windings to get the temperature signals and
circularly show the temperature of windings of each phase on the
control panel after being treated by circuit. The temperature control
system is capable of temperature setting, saving the highest
temperature after power failure, fan picking-up and stopping
automatically/manually, fault alarming, over temperature alarming with
sound and light, over temperature tripping function besides the
electromagnetic interference proof feature of national standard.
Page 8 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
•
Computer interface and software are available to carry out remote
control.
Types and functions of temperature controllers of BWD-3K series
Type
Function
BWD-3K
Regularly inspecting and displaying temperature, sensor
fault alarming, and the fan is not controlled.
BWD-3K130 Regularly temperature displaying, over temperature
alarming, over temperature trip, sensor fault alarming,
picking-up and stopping the fan
BWDSame as those of BWD-3K130, added by the networking
3K130A
function with the aid of computer interface.
Fan
• Low noise flow fan can reduce the winding temperature, improve its
ability of running under over-load, expand the service life of the
transformer. In forced air-cooling mode, output will be increased by
40%.
• Features: low noise, low power and convenient installation
The configuration of fan is shown below:
Capacity of transformer (kVA) 160
～ 160
～ ≥
～ 160
1000
1000
6300
1000
Account ×power of fan (W)
4×40
4×60
6×90
6
×
250
Temperature Controller
Low sound flow fan
6. On-load Tap Switch
When the voltage of the electric net fluctuates, the transformer’s tapping
can be changed over automatically or electrically in on-load operation to
ensure that the user get the tap switches which employ the stable voltage.
Page 9 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
MFK type complex on-load pneumatic tap switch
As an uninflammable novel on-load tap switch using air as the isolating
and arc-extinguishing media, it is equipped with ZTK self-controller and may
be connected to computer interface to carry out remote control. It is suitable
for dry-type power transformers of 6～10kV, 3150kVA and lower.
Features: Reliable quality; convenient installation and maintenance; low
priced; patented.
KY and CVT series of vacuum on-load tap switches
As a transitional unit-resistance on-load tap switch employing air as the
isolating media and using vacuum switch pipe in switching over, it is furnished
with ZDT20 (40) or HMK-2Z types of automatic tap changing controller and
may be linked to computer interface to carry out remote control. It is suitable
for dry-type power transformers of 6～10kV, 2500kVA or lower.
Features: Reliable quality; convenient installation and maintenance;
widely used. They are classified into two types: cylindric and cubicle type.
MFK type complex on-load
pneumatic tap switch
Cubicle vacuum on-load tap Automatic tap changing controller
7. Technical Specifications
•
Standards: GB6450, 《Dry-type Power Transformer》
GB/T10228-1997 《 Technical
Specification
and
requirements of Dry-type Power Transformer》
IEC726-82 《Dry-type Power Transformer》
IEEE Std C57.12.01-1998 《General Technical Conditions
of Dry-type Distribution and Power Transformer》
• Capacity: 160～10000kVA
• Voltage: 35kV and below
Page 10 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
•
•
•
•
•
•
•
•
•
Changing method: Off-circuit tap changing ±5% or ±2×2.5%,
On-load tap changing ±4×2.5% or ±3×2.5%
Phase: 3 phases
Frequency: 50Hz or 60Hz
Connection: Dyn11, Yyn0, Yd11, Ynd11 or others
Insulation Level: AC3 for 1kV
Ll60AC25 for 6kV
Ll75AC35 for 10kV
Ll125AC50 for 20kV
Ll170AC70 for 35kV
Cooling: Natural cooling (AN)
Natural (AN)/forced air (AF) or others
Protection degree: IP00, IP20, IP30, IP23 or others
Service conditions: Altitude ≤1000m
Ambient temperature ≤40℃
Min. temperature: ≥-5℃ for indoor use
≥-30℃ for outdoor use
Special service: Special design and service are offered for customer
with special applications and operation conditions.
Shockproof Test Report
Short-circuit Test Certification provided by American
KEMA Company for SCB-2500 type dry-type transformers
Page 11 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
8. Tests
Routine tests:
a. Measurement of winding resistance
b. Calibration of voltage ratio and voltage vector relationship
c. Measurement of insulation resistance
d. Measurement of short circuit impedance and load losses
e. Measurement of no-load losses and current
f. Separate-source power-frequency voltage withstand test
g. Induced over voltage withstand test
h. Measurement of partial discharge
Type tests:
a. Temperature rising test
b. Lightning impulse withstand test
Special tests:
a. Sound level test
b. Short-circuit test
Others: Other special tests could be carried out per requirements of the
customers
Partial Discharge Testing Instrument (Imported from Germany)
9. Dry-Type transformer dimensions and terminal drawings
Page 12 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
10. Specifications and dimensions for SCB type 10kV three-phase
cast resin dry-type distribution transformer with off-circuit tap changing
Type: SCB
Connection symbol: Dyn11 or Yyn0
H.V: 10 (11、10.5、6.3、6.0) kV
L.V: 0.4kV
Tapping range of H.V: ±5% or ±2×2.5%
Changing method: Off-circuit tap changing
Insulation class: F or H
Page 13 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
Mo
del
nu
mb
er
lev
el
9
10
Rated
Capaci
ty
(kVA)
Noload
Losse
s
(W)
160
580
200
680
250
780
315
980
400
1080
500
1300
630
1480
630
1400
800
1620
1000
1860
1250
Load Losses
(W)
Noload
Curren
t
(%)
Load
Imped
ance
120℃
(%)
Sound
Level
LPA
(dB)
Wei
ght
(kg)
Dimensions (mm)
Termin
als
B×δ
(mm)
L
B
H
W
a
b
c
e
750
953
660
255
315
390
634
40×3
111
0
130
0
133
0
150
0
175
0
207
0
201
0
242
0
275
0
117
0
115
5
119
0
123
0
126
0
131
0
141
0
146
0
150
0
156
0
750
992
660
227
314
385
674
40×4
750
1034
660
232
321
400
704
40×4
750
1036
660
253
325
410
677
50×5
750
1101
660
273
329
420
746
50×5
750
1156
660
284
336
435
797
60×6
750
1211
660
300
355
470
837
80×6
750
1161
660
284
361
485
787
80×6
920
1246
820
300
369
500
837
80×6
920
1296
820
316
381
520
877
52
319
0
158
0
920
1436
820
319
384
525
979
6
54
397
0
176
0
920
1511
820
355
415
585
0.4
6
56
487
0
195
0
920
1562
820
368
445
650
18200
0.4
6
56
586
0
204
0
117
0
1712
1070
392
460
680
200
00
23000
0.4
6
58
700
0
207
0
117
0
1900
1070
412
479
715
5500
240
00
27000
0.4
6
60
911
0
206
0
131
0
2520
1070
402
469
690
315
880
3460
1.0
4
48
660
253
325
410
3980
1.0
4
48
750
1101
660
273
329
420
746
50×5
500
1160
4870
1.0
4
50
750
1156
660
284
336
435
797
60×6
630
1340
5870
1.0
4
50
750
1211
660
300
355
470
837
80×6
630
1300
5950
1.0
6
50
750
1161
660
284
361
485
787
80×6
800
1520
6950
0.8
6
52
920
1246
820
300
369
500
837
80×6
1000
1760
8120
0.8
6
52
123
0
126
0
131
0
141
0
146
0
150
0
156
0
1036
970
133
0
150
0
175
0
207
0
201
0
242
0
275
0
750
400
302
0
348
0
426
0
512
0
520
0
607
0
709
0
102
1
105
0
117
0
138
2
180
1
677
100×
6
100×
8
100×
10
120×
12
120×
15
150×
15
180×
20
50×5
920
1296
820
316
381
520
877
1250
2000
846
0
9690
0.6
6
52
319
0
158
0
920
1436
820
319
384
525
979
1600
2400
102
40
11730
0.6
6
54
406
0
176
0
920
1511
820
355
415
585
2000
3300
126
00
14450
0.4
6
54
487
0
185
0
920
1668
820
356
425
615
2500
3700
146
70
16800
0.4
6
56
572
0
191
0
117
0
1737
1070
385
436
635
102
1
115
0
120
0
100×
6
100×
8
100×
10
120×
12
120×
15
75
℃
120℃
196
0
232
0
254
0
302
0
348
0
426
0
512
0
520
0
607
0
709
0
2240
1.1
4
48
980
2650
1.0
4
48
2900
1.0
4
48
3460
1.0
4
48
3980
1.0
4
48
4870
1.0
4
50
5870
1.0
4
50
5950
1.0
4
50
6950
0.8
6
52
8120
0.8
6
52
2100
846
0
9690
0.6
6
1600
2600
107
00
12200
0.6
2000
3500
131
00
15000
2500
4200
159
00
3150
4800
4000
Page 14 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
Note:
1) The holes in the base plate are of 4×Φ22. To facilitate moving, 4
wheels of Φ150 are fixed on it, which result in an increase of
approximately 130mm in height (H) and 40kg increase in weight.
2) According to request of users, the products of other different
connections or other impedance voltage or other H.V. tapping range can be
supplied.
11. SCZB9 type 10KV dry-type distribution transformer with on-load
tap changing
●
●
●
●
●
●
●
●
●
With big tap changing range, it is suitable when the voltage of electric
net fluctuates dramatically.
With automatic on-load tap changing, high-quality stable voltage can
be gained.
Equipped with automatic tap-changing controller, which bears the
functions of automatic and electrical operation and remote control.
Compact structure makes the maintenance easy. Reliable operation
can be achieved.
Tap switches fall into pneumatic and vacuum type, cubicle type and
disc type, which makes it suitable for many occasions.
Of series dry-type distribution transformer with on-load tap changing
are the same with those of the series dry-type transformer with offcircuit tap changing, having the same capacity.
The differences from the SCB series are listed below:
1) Tapping range: ±4x2.5%;
2) The differences in length, width and height are illustrated in the
figure below;
3) The weight will increase by 180kg when the cylinder tap switches
are applied. The weight will increase by 460kg when the cubicle tap
switches are applied.
The normal positions, where tap switches are installed on the
transformer body, are shown in the figure below. The tap switches and
the transformer body are arranged centrosymmetrically.
The outside dimensions of the enclosure of the dry type transformer
with on-load tap changing are different from those of the enclosure of
the off-circuit tap changing dry type transformers with the same
capacity in terms of the following aspects: where tap switches are fixed
on the side, the L increases by 620mm; the B increases by 750mm
when cylinder tap switches are located in the front; the B increase by
640mm when cubicle tap switches are arranged in the front.
Page 15 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
Cylindric On-load Switch on the Side
Cylindric On-load Switch on Front Side
Cubicle On-load Switch on Front Side
OSCZB9-2500/10 series of dry type
self-coupling transformer with on-load tap changing
Page 16 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
SCB9 type of transformer with
cylindric on-load switches on the side
SCB9 type of transformer with cylindric
on-load switches on front side
12. Specifications and dimensions for SCB9 type 1KV and lower
three-phase cast resin dry-type isolation transformer
Type: SCBG
Connection symbol: Dyn、Yd、YNd、Yyn
Primary voltage (V): 575、480、400、380
Secondary voltage (V): 400、220、210、208、120、100
Tapping range: ±5%
Insulation level: AC3/AC3
Insulation class: F or H
Load
losses
120
(w)
No-load
Current
(%)
650
750
850
2500
2970
3240
1.4
315
1000
3700
1.0
400
1100
4200
500
1300
5000
Rated
capacit
y
(KVA)
No-load
Losses
(w)
160
200
250
Sound
level
Short
circuit
impe
danc
e
(%)
(dB)
4
48
49
50
Weight
(kg)
L
B
H
W
845
1140
1320
1080
1040
1230
750
660
1405
1230
1590
1230
1750
1290
916
993
105
9
111
9
118
3
122
0
Note: Caster wheel and shielding as well as products of other voltage ratio or
three-winding transformers are available on request.
HV Terminal
LV Terminal
Page 17 of 29
Remarks
Dimensions (mm)
Selected
terminals
shall be
correspond
ent to rated
current (see
the figure
below). If
the external
windings
current is
not more
than 500A,
bolt
terminals
can be
adopted.
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
13. Specifications for SCB9 type 10kV three-phase cast resin dry-type
power transformer
Rated
capacity
(kVA)
630
800
1000
1250
1600
2000
2500
3150
4000
5000
6300
Combination of various
rated voltages
H.V
H.V
LV
(kV)
tapping
(kV
range
)
Connection
Symbol
6;
6.3;
6.6;
10;
10.5;
11
Yd11
±5% ;
±2×
2.5%
3;
3.1
5;
6;
6.3
No-load
Losses
(W)
1600
1800
2200
2500
3000
4000
4800
5700
6800
8000
9500
10;
10.5;
11
Load Losses
(W)
75℃
120℃
145℃
5850
6810
8030
9600
11700
13970
16500
19200
23100
27400
32400
6700
7800
9200
11000
13400
16000
18900
22000
26500
31400
37200
7170
8350
9850
11770
14340
17100
20200
23500
28400
33600
39800
Noload
curre
nt
Shortcircuit
imped
ance(
%)
0.9
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
0.5
0.5
6
7
Sou
nd
Lev
el
LP
A(d
B)
56
56
56
56
58
58
60
62
62
62
62
14. Specifications for SCB9 type 20kV three-phase cast resin drytype distribution transformer
Rated
capacity
(kVA)
160
Combination of
various rated
voltages
H.V H.V
LV
(kV) tapping (kV)
range
18;
±5% ;
0.4
Connection
Symbol
Yyn0;
Noload
Losses
(W)
680
Page 18 of 29
Load Losses
(W)
75℃
120℃
145℃
2180
2500
2670
Noload
Current
(%)
Shortcircuit
Impedance
(%)
Sound
Level
LPA(dB)
1.4
6
50
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
20;
22
Dyn11
±2×
2.5%
780
900
1140
1300
1550
1760
2070
2340
2740
3170
3900
4700
2570
2820
3490
4270
5230
6200
7330
8550
10300
12400
15000
17900
2950
3240
4000
4900
6000
7100
8400
9800
11800
14300
17200
20500
3150
3470
4280
5240
6420
7600
9000
10500
12600
15300
18400
22000
1.2
1.2
1.0
1.0
1.0
0.7
0.7
0.7
0,6
0.6
0.5
0.5
50
50
50
52
52
52
54
54
54
54
56
56
15. Specifications and dimensions for SCB9 types 35kV three-phase
cast resin dry-type distribution transformer
Type: SCB9
Connection symbol: Dyn11 or Yyn0
H.V: 35 (38.5) kV
L.V: 0.4kV
Tapping range of H.V: ±5% or ±2×2.5%
Changing method: Off-circuit tap changing
Insulation class: F
Rated
Capacit
y
(kVA)
Noload
Losse
s
(W)
Load Losses (W)
75℃
120
℃
Noload
curre
nt
(%)
800
2430
8400
9630
0.9
1000
2700
9660
1107
0
1250
3150
11700
1600
3600
2000
4230
Load
imped
ance
120℃
(%)
6
Soun
d
level
LPA
(dB)
Wei
ght
(kg)
58
350
0
0.9
58
410
0
1340
0
0.8
60
464
0
14100
1620
0
0.8
60
497
0
16600
1910
0
0.7
62
594
0
Page 19 of 29
Dimensions (mm)
L
B
H
W
a
b
c
e
1
8
8
0
1
9
4
0
1
9
7
0
2
0
3
0
2
1
2
0
920
1
7
4
0
1
8
9
0
1
9
8
0
2
1
4
0
2
2
8
0
8
2
0
320
45
5
6
2
5
8
2
0
327
46
4
6
4
5
8
2
0
330
47
0
6
5
5
1
0
7
0
1
0
7
0
340
49
5
6
7
5
370
51
0
7
0
5
1
0
7
0
1
2
1
0
1
2
9
0
1
4
8
2
1
5
3
2
920
920
1170
1170
Busbar
terminals
B×δ
(mm)
80×60
100×6
100×8
100×10
120×12
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
2500
4950
20000
2290
0
0.7
62
721
0
3150
6200
22500
2580
0
0.6
64
885
0
2
2
4
0
2
3
1
0
1310
1310
2
2
4
0
2
4
1
2
1
0
7
0
1
0
7
0
350
52
5
7
4
5
434
52
8
7
7
0
1
4
5
2
1
6
0
2
120×15
150×15
16. Specifications for SCB9 type 35kV three-phase cast resin drytype power transformer
Rated
Capacit
y
(kVA)
800
1000
1250
1600
Combination
of various rated
voltage
H.V H.V
LV
(kV) tappin (kV)
g
range
35; ±5%; 3.15
38. ±2× ;
5
6;
2.5%
6.3;
10;
10.5
;
11
Connectio
n
symbol
Yyn0;
Yd 11
NoLoad Losses
load
(W)
Losse
s
75℃ 120
(W)
℃
2500
9640
9900
2970
1005
0
1170
0
1410
0
1660
0
2000
0
2250
0
1152
0
1350
0
1620
0
1910
0
2290
0
2580
0
3480
4100
2000
4720
2500
5400
3150
6750
Page 20 of 29
145
℃
1060
0
1230
0
1450
0
1740
0
2050
0
2450
0
2760
0
Noload
curre
nt
(%)
Shortcircuit
impeda
nce
(%)
Sho
rt
level
LPA
(dB)
0.9
6
58
0.9
58
0.8
60
0.8
60
0.7
7
0.7
0.6
61
61
8
62
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
4000
7830
5000
9360
6300
1100
0
1260
0
1440
0
8000
10000
Yd11;
Ynd11
2700
0
3200
0
3700
0
4100
0
5100
0
3100
0
3680
0
4300
0
4770
0
5850
0
3320
0
3940
0
4600
0
5100
0
6260
0
0.6
62
0.5
63
0.5
63
0.5
9
0.5
17. Dry type transformer with protection enclosure
Products for domestic market: Enclosure protection level of the
transformers targeted at the domestic market shall be of standard GB4208-93
(eqvIEC529: 1989), while that of the to-be-exported products shall be in
accordance with the American standard NEMA.
Indoor-installed: IP20, which can prevent human body from approaching
the enclosed dangerous components and provide protection against entrance
of objects with diameter bigger than 12mm.
IP30, which cannot only prevent human body from approaching the
enclosed dangerous components, but also provide protection against
entrance of objects with diameter bigger than 2.5mm.
Outdoor-installed: IP23, which can not only provide functions as IP20, but
also prevent entrance of water drops at a vertical angle of less than 60°.
Products to be exported: NEMA1 enclosure can prevent human body from
approaching the enclosed dangerous component and provide protection
against entrance of alien objects with diameter bigger than 12.7mm. NEMA3R
(ventilation type) can not only provide functions as IP30, but also prevent
entrance of water drops at a vertical angle of less than 75°.
The enclosures of above-mentioned types are all made out of sheet steel
finished with resin static paint, which enables it to stand salt fog for 200 hours.
They can also be made of stainless steel sheets or aluminum alloy sheet.
Structural features:
Page 21 of 29
65
65
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
Enclosures for indoor-installed transformers are constructed with bolts and
rivets, unlimited by the doorframes on the installation site. Transformers can
be moved outside or inside from the front side in case of maintenance. They
can be transported and erected in whole. Those for outdoor-installed
transformers are constructed with bolts and rivets, or by welding. They
provide protection against rain, snow, hail and ice formation. They can be
transported and erected in whole.
Temperature controller and electrical control cabinet are installed in the
door panel of the enclosure. There are lighting devices inside. Tap changing
controller is fixed in the door panel of the enclosure for the transformer with
on-load tap changing controller.
We provide enclosures of various protection classes and the
corresponding tin-coated copper line banks of several wiring methods. They
can stand the test of the ground acceleration ag: caused by earthquake,
whose horizontal component is 0.6g and vertical component is 0.3g. The
dimensions of some commonly used enclosures of dry-type distribution
transformers and their forms of incoming and outgoing are listed below for
reference.
1.Dimension drawing illustrating normal form of incoming and outgoing of high
and low voltage for SCB9 type 10kV transformer
Type
SCB9160/10
SCB9200/10
SCB9250/10
SCB9、
10315/10
SCB9、
10400/10
SCB9、
10500/10
SCB9、
10630/10
SCB9、
10630/10
Uk
4%
Dimensions (mm)
Remarks
1310
H.V and LV
outgoing
terminals
are the
same with
those of
the
transformer
L
B
H
W
a
b
c
D
e
f
g
1400
1200
2200
660
255
315
390
1073
774
175
100
227
314
385
1112
814
160
1440
232
321
400
1154
844
180
1630
253
325
410
1136
817
180
140
1690
273
329
420
1201
886
185
130
1860
284
336
435
1266
937
190
300
355
470
1311
977
195
284
361
485
1261
927
205
1600
1800
6%
Weight
(kg)
Page 22 of 29
2110
140
2490
2430
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
1400
SCB9、
10800/10
SCB9、
101000/10
SCB9、
101250/10
SCB91600/10
SCB101600/10
SCB92000/10
SCB102000/10
SCB92500/10
SCB102500/10
820
2000
2200
160
300
369
500
1346
977
210
316
381
520
4386
1017
210
3310
319
384
525
1526
1119
215
3750
355
415
585
1601
1161
245
170
2520
4590
4680
2400
1600
1070
180
368
445
650
1642
1190
265
5490
356
425
615
1748
1150
250
5490
392
460
680
1792
1310
280
6660
385
436
635
1817
1200
260
6520
2. Drawing of LV enclosed upper-outgoing busbar for SCB type 10kV
transformer
Type
Uk
Dimensions (mm)
Weight
Page 23 of 29
Busbar
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
SCB9160/10
SCB9200/10
SCB9250/10
SCB9、
10315/10
SCB9、
10400/10
SCB9、
10500/10
SCB9、
10630/10
SCB9、
10630/10
SCB9、
10800/10
SCB9、
101000/10
SCB9、
101250/10
SCB91600/10
SCB101600/10
SCB92000/10
SCB102000/10
SCB92500/10
SCB102500/10
4%
L
B
H
W
a
b
c
D
e
f
g
(kg)
1400
1200
2200
660
400
315
390
120
774
130
460
1320
314
385
814
1450
321
400
844
1640
325
410
817
1700
329
420
886
1870
1×50×
6
336
435
937
2130
1×100
×6
355
470
977
2510
1×100
×6
361
485
927
2450
1×100
×6
369
500
977
2550
1×100
×6
381
520
1017
3340
1×100
×8
384
525
3810
2×100
×6
415
585
4650
2×100
×8
1600
1800
6%
1400
820
2000
500
2200
180
180
660
1119
1161
4750
2400
1600
1070
445
650
1190
425
615
1150
5570
460
680
1310
6740
436
635
1200
6600
200
5570
3. Drawing illustrating standard horizontal arrangement for SCB type 10kV
transformer
Page 24 of 29
terminals
N×B×
δ
1×50×
4
1×50×
4
1×50×
4
1×50×
6
2×120
×10
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
Type
SCB9160/10
SCB9200/10
SCB9250/10
SCB9
、10315/10
SCB9
、10400/10
U
k
4
%
Dimensions (mm)
Weight
(kg)
Busbar
terminals
N×B×δ
1320
1×50×4
814
1450
1×50×4
L
B
H
W
a
B
c
d
e
f
1800
1200
2200
660
10
0
315
390
774
205
0
314
385
1
0
0
321
400
844
1640
1×50×4
325
410
817
1860
1×60×4
329
420
886
2030
1×60×6
2000
14
0
Page 25 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
SCB9
、10500/10
SCB9
、10630/10
SCB9
、10630/10
SCB9
、10800/10
SCB9
、101000/1
0
SCB9
、101250/1
0
SCB91600/1
0
SCB10
1600/1
0
SCB92000/1
0
SCB10
2000/1
0
SCB92500/1
0
SCB10
2500/1
0
2200
12
0
1400
6
%
820
10
0
2400
336
435
937
2280
1×60×6
355
470
977
2730
1×80×6
361
485
927
2670
1×80×6
369
500
977
3080
1×100×8
381
520
101
7
3430
1×100×10
384
525
111
9
3890
2×100×6
415
585
116
1
4730
2×100×8
1
5
0
4820
2600
1600
445
107
0
460
650
680
119
0
5870
115
0
5870
131
0
6860
120
0
6720
2×100×10
3×100×8
4. Drawing illustrating standard vertical arrangement for SCB type 10kV
transformer
Type
SCB9160/10
SCB9200/10
U
k
4
%
Dimensions (mm)
L
B
H
W
a
B
c
d
e
f
180
0
120
0
220
0
660
25
5
31
5
31
4
39
0
38
5
10
0
774
151
2.5
Page 26 of 29
814
Weight
(kg)
Busbar
terminals
N×B×δ
1440
1×50×4
1570
1×50×4
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
SCB9250/10
SCB9
、10315/10
SCB9
、10400/10
SCB9
、10500/10
SCB9
、10630/10
SCB9
、10630/10
SCB9
、10800/10
SCB9
、101000/1
0
SCB9
、101250/1
0
SCB91600/1
0
SCB10
1600/1
0
SCB92000/1
0
SCB10
2000/1
0
SCB92500/1
0
SCB10
2500/1
0
200
0
220
0
140
0
6
%
820
240
0
32
1
32
5
40
0
41
0
844
1640
1×50×4
817
1860
1×60×4
32
9
42
0
886
2030
1×60×6
33
6
43
5
937
2280
1×60×6
35
5
47
0
977
2730
1×80×6
36
1
48
5
927
2670
1×80×6
36
9
50
0
977
3080
1×100×8
38
1
52
0
101
7
3430
1×100×10
38
4
52
5
111
9
3890
2×100×6
41
5
58
5
116
1
4730
2×100×8
12
0
14
0
4820
260
0
160
0
44
5
107
0
46
0
65
0
68
0
18. Inquiry, Order
Page 27 of 29
119
0
5870
115
0
5870
131
0
6860
120
0
6720
2×100×10
3×100×8
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
You are kindly requested to inform us of the following items for inquiries and
orders:
Items
Type
Rated capacity
Number of phases
Frequency
HV rated voltage
HV tapping range
LV rated voltage
Changing method
Connection symbol
Short-circuit impedance
Insulation level
Cooling method
Protection degree
Enclosure material
Content
□single phase □three phase or Others
or Others
□50
□60
□6 □6.3 □6.6 □10 □10.5 □11 □35 □38.5 or Others
or Others
□±5 □±2×2.5%□±3×2.5%□±4×2.5%
□0.4 □0.69 □6.3 □10 □10.5 □11
□with off-circuit tap changing □with on-load tap changing
or Others
□Dyn11 □Yn0 □Y d11 □Ynd11
or Others
□4 □6 □8
or Others
□F
□H
□Air natural(AN)
□(AN)/Air-forced(AF) or Others
or Others
□IP00 □IP20 □IP30 □IP23
□Steel sheet(with static paint) □Al Alloy Sheet
or Others
□Stainless Steel Sheet
Temperature thermometer □Temperature thermometer
□Temperature controller
and temperature control
□Temperature controller with computer interface
box
□None
Fan
□Yes
□No
Forms of LV outgoing
□Conventional
□Enclosed busbar upper outgoing
□Standard horizontally-lined busbar side outgoing
□Standard vertically-lined busbar side outgoing or Others
Service
Altitude
or Others
□1000 and lower
Conditions Max. temp.
or Others
□40
Min. temp.
or Others
□-5(indoors) □-30(outdoors)
Indoor/outdoor □indoor
or Others
□Outdoor
Packing
Quantities ordered (unit)
Time of delivery
Delivery taking
Page 28 of 29
g
GE Consumer & Industrial
SCB Series of Cast Resin Dry-Type Power
Transformers
Transportation
Delivery point
Miscellaneous
The transformers are numbering according to JB/T3837-1996 Numbering of
Transformer Category.
Dry-type transformer model number:
SCB9-1000/10
H.V. voltage levels (kV)
Rated capacity (kVA)
Performance calss code name
The winding is made of copper foil
Moulded with epoxy resin
Three-phase
Notes:
a. “Z” is prefixed to the model number of the transformer with
rectification.
b. There is an “O” in front of the S in the model number of the selfcoupling transformer.
c. There is an “S” behind to the S for three-phase transformers.
d. There is a “Z” behind the C for transformers with on-load tap
changing.
e. There is an “L” before the B for transformers with windings
made of copper foil.
f. There is a “G” behind the B for isolated transformers.
g. According to GB/T10288-1997, the performance class of Group
Ⅰ is signified with “8”. Those whose no-load and load losses are
10% lower than the “8” type are signified with “9”. Those whose
no-load losses are 20% lower than the “8”type while load losses
15% lower are signified with “10”.
Page 29 of 29