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gGE 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

Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

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Page 1: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE 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

Page 2: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 2 of 29

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 three-phase 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 3: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 3 of 29

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 short-circuit 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 4: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 4 of 29

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 5: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 5 of 29

Dry-type Distribution Transformer with SCB9-3150/10/0.4 Dry-type Protection Enclosure IP30 Distribution Transformer

ZSCB-1500/15.75/0.5 Dry-type field Transformer SCB9-10000/35/10.5 Dry-type Distribution Transformer

3. Core

• Made of high-quality cold-rolled grain-oriented steel sheets

Page 6: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 6 of 29

• 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 Core with Non-stacking Top Yoke (Japanese plant)

Cut-to-length line for silicon steel sheet Mitred type core of the limbs and the yokes (Swiss plant)

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 7: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 7 of 29

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 heat-dissipating 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 high-quality 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 H.V windings casted with epoxy With heat-dissipating air passages resin for special purpose

Page 8: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 8 of 29

Low voltage foil winding machine High voltage foil winding machine (Swiss plant) (Swiss plant)

Vacuum casting plant Large-scale 35KV winding casted with epoxy resin (Italian plant)

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 9: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 9 of 29

• 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

BWD-3K130A

Same as those of BWD-3K130, added by the networking 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 ~

1000 160 ~1000

160 ~1000

≥6300

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 10: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 10 of 29

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 Cubicle vacuum on-load tap Automatic tap changing controller pneumatic tap switch

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

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 11 of 29

• 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 12: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 12 of 29

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 13: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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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 14: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 14 of 29

Load Losses (W)

Dimensions (mm) Model numberlevel

Rated Capacity (kVA)

No-load Losses(W)

75℃

120℃

No-load Current(%)

LoadImpedance 120℃(%)

Sound Level LPA(dB)

Weight (kg)

L B H W a b c e

TerminalsB×δ(mm)

160 580 1960

2240 1.1 4 48 980 1170

750 953 660 255 315 390 634 40×3

200 680 2320

2650 1.0 4 48 1110

1155

750 992 660 227 314 385 674 40×4

250 780 2540

2900 1.0 4 48 1300

1190

750 1034 660 232 321 400 704 40×4

315 980 3020

3460 1.0 4 48 1330

1230

750 1036 660 253 325 410 677 50×5

400 1080 3480

3980 1.0 4 48 1500

1260

750 1101 660 273 329 420 746 50×5

500 1300 4260

4870 1.0 4 50 1750

1310

750 1156 660 284 336 435 797 60×6

630 1480 5120

5870 1.0 4 50 2070

1410

750 1211 660 300 355 470 837 80×6

630 1400 5200

5950 1.0 4 50 2010

1460

750 1161 660 284 361 485 787 80×6

800 1620 6070

6950 0.8 6 52 2420

1500

920 1246 820 300 369 500 837 80×6

1000 1860 7090

8120 0.8 6 52 2750

1560

920 1296 820 316 381 520 877 100×6

1250 2100 8460

9690 0.6 6 52 3190

1580

920 1436 820 319 384 525 979 100×8

1600 2600 10700

12200 0.6 6 54 3970

1760

920 1511 820 355 415 585 1021

100×10

2000 3500 13100

15000 0.4 6 56 4870

1950

920 1562 820 368 445 650 1050

120×12

2500 4200 15900

18200 0.4 6 56 5860

2040

1170

1712 1070 392 460 680 1170

120×15

3150 4800 20000

23000 0.4 6 58 7000

2070

1170

1900 1070 412 479 715 1382

150×15

9

4000 5500 24000

27000 0.4 6 60 9110

2060

1310

2520 1070 402 469 690 1801

180×20

315 880 3020

3460 1.0 4 48 1330

1230

750 1036 660 253 325 410 677 50×5

400 970 3480

3980 1.0 4 48 1500

1260

750 1101 660 273 329 420 746 50×5

500 1160 4260

4870 1.0 4 50 1750

1310

750 1156 660 284 336 435 797 60×6

630 1340 5120

5870 1.0 4 50 2070

1410

750 1211 660 300 355 470 837 80×6

630 1300 5200

5950 1.0 6 50 2010

1460

750 1161 660 284 361 485 787 80×6

800 1520 6070

6950 0.8 6 52 2420

1500

920 1246 820 300 369 500 837 80×6

1000 1760 7090

8120 0.8 6 52 2750

1560

920 1296 820 316 381 520 877 100×6

1250 2000 8460

9690 0.6 6 52 3190

1580

920 1436 820 319 384 525 979 100×8

1600 2400 10240

11730 0.6 6 54 4060

1760

920 1511 820 355 415 585 1021

100×10

2000 3300 12600

14450 0.4 6 54 4870

1850

920 1668 820 356 425 615 1150

120×12

10

2500 3700 14670

16800 0.4 6 56 5720

1910

1170

1737 1070 385 436 635 1200

120×15

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 15 of 29

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 off-circuit 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 16: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

Page 16 of 29

Cylindric On-load Switch on the Side Cubicle On-load Switch on Front Side

Cylindric On-load Switch on Front Side OSCZB9-2500/10 series of dry type self-coupling transformer with on-load tap changing

Page 17: Wave Cast Type SCB Series of Cast Resin Dry-Type Power …¢ехн. каталог... · 2014. 9. 16. · Low voltage foil winding machine High voltage foil winding machine (Swiss

gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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SCB9 type of transformer with SCB9 type of transformer with cylindriccylindric on-load switches on the side 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、100Tapping range: ±5%Insulation level: AC3/AC3 Insulation class: F or H

Dimensions (mm) Ratedcapacity(KVA)

No-load Losses (w)

Load losses 120(w)

No-load Current (%)

Short-circuit impedance (%)

Sound level

(dB)

Weight (kg)

L B H W

Remarks

160 650 2500 845 1080 916 200 750 2970

481140 1040 993

250 850 3240

1.4

1320 1230 1059

315 1000 3700

49

1405 1230 1119

400 1100 4200 1590 1230 1183

500 1300 5000

1.0

4

50

1750 1290

750

1220

660 Selected terminals shall be correspondent to rated current (see the figure below). If the external windings current is not more than 500A, bolt terminals can be adopted.

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

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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13. Specifications for SCB9 type 10kV three-phase cast resin dry-type power transformer

Combination of various rated voltages

Load Losses (W)

Rated capacity (kVA) H.V

(kV) H.Vtapping range

LV(kV)

Connection Symbol

No-load Losses (W)

75℃ 120℃ 145℃

No-loadcurrent

Short-circuit impedance(%)

SoundLevelLPA(dB)

630 1600 5850 6700 7170 0.9 56 800 1800 6810 7800 8350 0.9 561000 2200 8030 9200 9850 0.9 561250 2500 9600 11000 11770 0.8 561600 3000 11700 13400 14340 0.8 582000 4000 13970 16000 17100 0.7 582500 4800 16500 18900 20200 0.7

6

603150

6;6.3;6.6;10;10.5;11

5700 19200 22000 23500 0.6 624000 6800 23100 26500 28400 0.6 625000 8000 27400 31400 33600 0.5 626300

10;10.5;11

±5% ; ±2×2.5%

3;3.15;6;6.3

Yd11

9500 32400 37200 39800 0.5

7

62

14. Specifications for SCB9 type 20kV three-phase cast resin dry-type distribution transformer

Combination of various rated voltages

Load Losses (W)

Rated capacity (kVA)

H.V(kV)

H.Vtapping range

LV(kV)

Connection Symbol

No-loadLosses (W)

75℃ 120℃ 145℃

No-loadCurrent (%)

Short-circuit Impedance (%)

SoundLevel LPA(dB)

160 18; ±5% ; 0.4 Yyn0; 680 2180 2500 2670 1.4 6 50

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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200 780 2570 2950 3150 1.2 50 250 900 2820 3240 3470 1.2 50 315 1140 3490 4000 4280 1.0 50 400 1300 4270 4900 5240 1.0 52 500 1550 5230 6000 6420 1.0 52 630 1760 6200 7100 7600 0.7 52 800 2070 7330 8400 9000 0.7 54 1000 2340 8550 9800 10500 0.7 54 1250 2740 10300 11800 12600 0,6 54 1600 3170 12400 14300 15300 0.6 54 2000 3900 15000 17200 18400 0.5 56 2500

20;22

±2×2.5%

Dyn11

4700 17900 20500 22000 0.5 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

Load Losses (W) Dimensions (mm) Rated Capacity(kVA)

No-loadLosses(W)

75℃ 120℃

No-loadcurrent(%)

Loadimpedance120℃(%)

Sound level LPA(dB)

Weight(kg)

L B H W a b c e

Busbar terminals B×δ(mm)

800 2430 8400 9630 0.9 58 3500

1880

920 1740

820

320 455

625

1070

80×60

1000 2700 9660 11070

0.9 58 4100

1940

920 1890

820

327 464

645

1210

100×6

1250 3150 11700 13400

0.8 60 4640

1970

920 1980

820

330 470

655

1290

100×8

1600 3600 14100 16200

0.8 60 4970

2030

1170 2140

1070

340 495

675

1482

100×10

2000 4230 16600 19100

0.7

6

62 5940

2120

1170 2280

1070

370 510

705

1532

120×12

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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2500 4950 20000 22900

0.7 62 7210

2240

1310 2240

1070

350 525

745

1452

120×15

3150 6200 22500 25800

0.6 64 8850

2310

1310 2412

1070

434 528

770

1602

150×15

16. Specifications for SCB9 type 35kV three-phase cast resin dry-type power transformer

Combination of various rated voltage

Load Losses (W)

Rated Capacity(kVA) H.V

(kV) H.V tappingrange

LV(kV)

Connectionsymbol

No-load Losses(W)

75℃ 120℃

145℃

No-load current(%)

Short-circuitimpedance(%)

Short levelLPA(dB)

800 2500 9640 9900 10600

0.9 58

1000 2970 10050

11520

12300

0.9 58

1250 3480 11700

13500

14500

0.8 60

1600 4100 14100

16200

17400

0.8

6

60

2000 4720 16600

19100

20500

0.7 61

2500 5400 20000

22900

24500

0.7

7

61

3150

35;38.5

±5%;±2×2.5%

3.15;6;6.3;10;10.5;11

Yyn0; Yd 11

6750 22500

25800

27600

0.6 8 62

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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4000 7830 27000

31000

33200

0.6 62

5000 9360 32000

36800

39400

0.5 63

6300 11000

37000

43000

46000

0.5 63

8000 12600

41000

47700

51000

0.5 65

10000

Yd11; Ynd11

14400

51000

58500

62600

0.5

9

65

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:

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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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

Dimensions (mm) Type Uk

L B H W a b c D e f g

Weight (kg)

Remarks

SCB9-160/10

255 315 390 1073 774 175 1310

SCB9-200/10

227 314 385 1112 814 160 1440

SCB9-250/10

1400

232 321 400 1154 844 180

100

1630

SCB9、10-315/10

253 325 410 1136 817 180 140 1690

SCB9、10-400/10

273 329 420 1201 886 185 1860

SCB9、10-500/10

1600

284 336 435 1266 937 190

130

2110

SCB9、10-630/10

4%

300 355 470 1311 977 195 2490

SCB9、10-630/10

6%

1800

1200 2200 660

284 361 485 1261 927 205

140

2430

H.V and LV outgoing terminals are the same with those of thetransformer

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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SCB9、10-800/10

300 369 500 1346 977 210 2520

SCB9、10-1000/10

316 381 520 4386 1017 210 3310

SCB9、10-1250/10

2000

319 384 525 1526 1119 215

160

3750

SCB9-1600/10

4590

SCB10-1600/10

355 415 585 1601 1161 245 170

4680

SCB9-2000/10

368 445 650 1642 1190 265 5490

SCB10-2000/10

2200

1400 820

356 425 615 1748 1150 250 5490

SCB9-2500/10

392 460 680 1792 1310 280 6660

SCB10-2500/10

2400 1600 1070

385 436 635 1817 1200 260

180

6520

2. Drawing of LV enclosed upper-outgoing busbar for SCB type 10kV transformer

Type Uk Dimensions (mm) Weight Busbar

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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L B H W a b c D e f g (kg) terminals N×B×δ

SCB9-160/10

315 390 774 1320 1×50×4

SCB9-200/10

314 385 814 1450 1×50×4

SCB9-250/10

1400

321 400 844 1640 1×50×4

SCB9、10-315/10

325 410 817 1700 1×50×6

SCB9、10-400/10

329 420 886

130

1870 1×50×6

SCB9、10-500/10

1600

336 435 937 2130 1×100×6

SCB9、10-630/10

4%

355 470 977 2510 1×100×6

SCB9、10-630/10

1200 660

361 485 927 2450 1×100×6

SCB9、10-800/10

1800

369 500 977 2550 1×100×6

SCB9、10-1000/10

400

381 520

120

1017

180

460

3340 1×100×8

SCB9、10-1250/10

2000

384 525 1119 3810 2×100×6

SCB9-1600/10

4650

SCB10-1600/10

415 585 1161

4750

2×100×8

SCB9-2000/10

445 650 1190 5570

SCB10-2000/10

2200

1400 820

425 615 1150 5570

SCB9-2500/10

460 680 1310 6740

SCB10-2500/10

6%

2400 1600

2200

1070

500

436 635

180

1200

200

660

6600

2×120×10

3. Drawing illustrating standard horizontal arrangement for SCB type 10kV transformer

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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Dimensions (mm) Type Uk

L B H W a B c d e f

Weight (kg)

Busbar terminals N×B×δ

SCB9-160/10

315 390 774 1320 1×50×4

SCB9-200/10

314 385 814 1450 1×50×4

SCB9-250/10

1800 100

321 400 844 1640 1×50×4

SCB9、10-315/10

325 410 817 1860 1×60×4

SCB9、10-400/10

4%

2000

1200 2200 660

140

329 420

100

886

2050

2030 1×60×6

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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SCB9、10-500/10

336 435 937 2280 1×60×6

SCB9、10-630/10

355 470 977 2730 1×80×6

SCB9、10-630/10

361 485 927 2670 1×80×6

SCB9、10-800/10

120

369 500 977 3080 1×100×8

SCB9、10-1000/10

381 520 1017

3430 1×100×10

SCB9、10-1250/10

2200

384 525 1119

3890 2×100×6

SCB9-1600/10

4730

SCB10-1600/10

2400

1400

415 585 1161

4820

2×100×8

SCB9-2000/10

1190

5870

SCB10-2000/10

820

445 650

1150

5870

2×100×10

SCB9-2500/10

1310

6860

SCB10-2500/10

6%

2600 1600

1070

100

460 680

150

1200

6720

3×100×8

4. Drawing illustrating standard vertical arrangement for SCB type 10kV transformer

Dimensions (mm) Type Uk

L B H W a B c d e f

Weight (kg)

Busbar terminals N×B×δ

SCB9-160/10

315

390

774 1440 1×50×4

SCB9-200/10

4%

1800

1200

2200

660 255

314

385

100

814

1512.5

1570 1×50×4

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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SCB9-250/10

321

400

844 1640 1×50×4

SCB9、10-315/10

325

410

817 1860 1×60×4

SCB9、10-400/10

329

420

886 2030 1×60×6

SCB9、10-500/10

2000

336

435

937 2280 1×60×6

SCB9、10-630/10

355

470

977 2730 1×80×6

SCB9、10-630/10

361

485

927 2670 1×80×6

SCB9、10-800/10

369

500

120

977 3080 1×100×8

SCB9、10-1000/10

381

520

1017

3430 1×100×10

SCB9、10-1250/10

2200

384

525

1119

3890 2×100×6

SCB9-1600/10

4730

SCB10-1600/10

2400

1400

415

585

1161

4820

2×100×8

SCB9-2000/10

1190

5870

SCB10-2000/10

820

445

650

1150

5870

2×100×10

SCB9-2500/10

1310

6860

SCB10-2500/10

6%

2600

1600

1070

460

680

140

1200

6720

3×100×8

18. Inquiry, Order

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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You are kindly requested to inform us of the following items for inquiries and orders:

Items Content Type Rated capacity Number of phases □single phase □three phase or Others Frequency □50 □60 or Others HV rated voltage □6□6.3 □6.6 □10 □10.5 □11 □35□38.5 or Others HV tapping range □±5□±2×2.5%□±3×2.5%□±4×2.5% or OthersLV rated voltage □0.4□0.69 □6.3 □10 □10.5 □11Changing method □with off-circuit tap changing □with on-load tap changing Connection symbol □Dyn11 □Yn0 □Y d11 □Ynd11 or Others Short-circuit impedance □4 □6 □8 or Others Insulation level □F □H or Others Cooling method □Air natural(AN) □(AN)/Air-forced(AF) or Others Protection degree □IP00 □IP20 □IP30 □IP23 or Others Enclosure material □Steel sheet(with static paint) □Al Alloy Sheet

□Stainless Steel Sheet or Others Temperature thermometer and temperature control box

□Temperature thermometer □Temperature controller □Temperature controller with computer interface □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

Altitude □1000 and lower or OthersMax. temp. □40 or Others Min. temp. □-5(indoors) □-30(outdoors) or Others

Service Conditions

Indoor/outdoor □indoor □Outdoor or OthersPacking Quantities ordered (unit) Time of delivery Delivery taking

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gGE Consumer & Industrial SCB Series of Cast Resin Dry-Type Power

Transformers

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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 self-

coupling 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”.