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S11 Series 6kV-35kV power Transformer With Off Circuit Tap Changer,power oill transformer,high voltage step up transformer,distribution transformer

S11 Series 6kV-35kV power Transformer With Off Circuit Tap Changer,power oill transformer,high voltage step up transformer,distribution transformer

The products implement the National Standard GB1094-2013 Power Transformer and GB / T6451-2015 Three-phase Oil-immersed Power Transformer Technical Parameters and Requirements, and are recommended as the major equipment products for the national urban and rural power grid construction and retrofit by the State Economic and Trade Commission.

Product Description

The products implement the National Standard GB1094-2013 Power Transformerand GB / T6451-2015 Three-phase Oil-immersed Power Transformer Technical Parameters and Requirements, and are recommended asthe major equipment products for the national urban and rural power grid construction and retrofit by the State Economic and Trade Commission.

S11 series transformer adopts high quality material for copper winding, especially applying the new technology and new material for the coil insulation and active parts, thus the no-load and the load loss are obviously reduced, the performance and structure are more reliable and superior.

Product Features

  • Good Economic Performance

The no-load loss for S11 series products decreased 10.3% averagely, no-load current decreased 22.4%based on S9 series.

  • Long Service Life

Transformer tank adopts hermetical structure, tank and tank cover can be connected by bolts or welded firmly, the transformer oil won’t contact with air,so that extend the service life effectively.

  • High Operation Reliability

Improve the relevant sealing parts for the tank, increase the reliability and advance the technical level to ensure the reliability of the seal.

  • Small Installation Area

S11-M series transformer tank uses the corrugated plate radiator. When the oil temperature changes, the corrugated plate will proceed thermal expansion, which can replace the role of the oil conservator. the corrugated plate tank has beautiful appearance, less occupied area.

Model and Meaning

Table 1: 6Kv, 10kV & 30kVA-2500kVA Power Transformer With Off Circuit Tap Changer

Rated Capacity (kVA)

Voltage Combination

Connection Group Symbol

No-load Loss R(W)

Load Loss R(W)75℃

Impedance Voltage (%)

No-load Current(%)

Length L(mm)

Width W (mm)

Height H(mm)

Gauge Horizontal*Vertical(mm)

Active parts Weight(Kg)

Oil Weight(Kg)

Total Weight(Kg)

(KV) High Voltage

Tapping Range of High Voltage

(KV)Low Voltage

30

±5%±2×2.5%

Dyn11Yzn11Yyn0

100

630/600

980

735

1145

400*400

178

78

355

50

130

910/870

1017

758

1205

450*400

240

92

415

63

150

1090/1040

1035

785

1285

450*400

285

105

505

80

180

1310/1250

1065

800

1290

450*400

330

110

540

100

200

1580/1500

1072

820

1305

450*400

345

116

590

125

240

1890/1800

1155

1105

1310

450*550

415

135

705

160

280

2310/2200

1235

850

1535

550*550

485

155

835

200

340

2730/2600

1282

860

1557

550*550

582

168

965

250

400

3200/3050

1310

940

1605

550*550

695

210

1135

315

480

3830/3650

1465

1120

1915

660*650

855

255

1520

400

570

4520/4300

1440

1165

1725

660*660

950

295

1590

500

680

5410/5150

1510

1250

1845

660*650

1150

320

1905

630

810

6200

1650

1140

1920

660*650

1500

435

2015

800

980

7500

2125

1175

2315

820*820

1910

760

3510

1000

1150

10300

2150

1380

2570

820*820

2125

880

3850

1250

1360

12000

2355

1485

2570

820*820

2605

960

4610

1600

1640

14500

2385

1750

2630

820*820

3125

1150

5420

2000

1940

18300

1940

1400

1700

820*820

2420

780

4200

2500

2290

21200

2050

1480

1800

820*820

2560

880

4680

Notes:

Technical Parameter for S11 Series 20kV Power Transformer With Off Circuit Tap Changer

Rated capacity(KVA)

Voltage Combination

Connection Group Symbol

No-load Loss(W)

Load Loss (W)75℃

No-load Current (%)

Short-circuit Impedance(%)

High Voltage (KV)

Tapping ranges of High Voltage

Low Voltage(KV)

30

20

±5% ±2×2.5%

Dyn11Yzn11Yyn0

100

690/660

50

130

1010/960

63

150

1200/1150

80

180

1440/1370

100

200

1730/1650

125

240

2080/1980

160

290

2540/2420

200

340

3000/2860

250

400

3520/3350

315

480

4210/4010

400

570

4970/4730

500

680

5940/5660

630

810

6820

800

980

8250

1000

1150

11330

1250

1380

13200

1600

1660

15950

2000

1950

19140

2500

2340

22220

Notes:

Technical Parameter for S11 Series 35kV Power Transformer With Off Circuit Tap Changer

Model

Voltage Combination

Connection Group Symbol

No-load Loss (W)75℃

Load Loss R(W)

Impedance Voltage (%)

No-load Current(%)

Length L(mm)

Width W(mm)

Height H(mm)

Gauge Horizontal*Vertical (mm)

Active parts Weight(Kg)

Oil Weight(Kg)

Total Weight(Kg)

High Voltage (kV)

Tapping Range of High Voltage %

Low Voltage (kV)

50

±2×2.5%±5%

Dyn11/ Yyn0

160

1200/1140

1195

935

1825

660*660

300

330

860

100

230

2010/1910

1200

995

1935

660*660

470

383

1130

125

270

2370/2260

1235

940

1955

660*660

550

465

1335

160

280

2820/2680

1285

895

1950

660*660

580

485

1475

200

340

3320/3160

1310

1150

1985

660*660

680

595

1755

250

400

3950/3760

1450

1090

2010

660*660

860

650

2000

315

480

4750/4530

1930

1065

2320

820*820

980

765

2290

400

580

5740/5470

1850

1165

2015

820*820

1170

885

2725

500

680

6910/6580

2045

1205

2415

820*820

1340

960

3090

630

830

7860

2085

1240

2515

660*660

1550

895

3810

800

980

9400

2305

1615

2685

820*820

1990

1030

4510

1000

1150

11500

2545

1540

2590

1070*1070

2415

1475

5055

1250

1400

13900

2495

2010

2675

820*820

2480

1405

5290

1600

1690

16600

2680

2100

2770

820*820

2600

1490

5450

2000

1990

19700

2790

2180

2860

820*820

2720

1590

5600

2500

2360

23200

2900

2290

2980

1070*1070

2830

1720

5760

Notes:

S11 Series 35kV 630kVA-31500kVA Three-phase Dual Winding Power Transformer With Off Circuit Tap Changer

Model

Voltage Combination

Connection Group Symbol

No-load Loss (W)

Load Loss R(W)

No-load Current(%)

Short circuit impedance (%)

Length L(mm)

Width W(mm)

Height H(mm)

Gauge Horizontal*Vertical (mm)

Active parts Weight(Kg)

Oil Weight(Kg)

Total Weight(Kg)

High Voltage (kV)

Tapping Range of High Voltage %

Low Voltage (kV)

630

35

±2×2.5%±5%

Yd11

830

7860

2400

1700

2210

820*820

2210

900

3250

800

980

9400

2500

1850

2390

820*820

2350

1030

3500

1000

1150

1150

2700

1950

2510

820*820

2490

1180

3860

1250

1400

1390

2900

2050

2630

820*820

2600

1350

4350

1600

1690

1660

3050

2130

2750

820*820

2810

1580

4855

2000

2170

1830

3105

2195

2805

1070*1070

2800

1800

5300

2500

2560

1960

3150

2535

2980

1070*1070

3525

2060

7665

3150

35-38.5

±2×2.5%±5%

3040

2300

3920

2725

2840

1070*1070

3995

2205

8565

4000

3610

2730

3310

2915

3070

1070*1070

4825

2560

10115

5000

4320

3130

3480

3020

3145

1070*1070

5700

2635

11305

6300

5240

3500

3590

2905

3210

1475*1475

7120

3240

13510

8000

35-38.5

±2×2.5%

YNd11

7200

3840

4070

3050

3595

1475*1475

8875

3840

16690

10000

8700

4530

4106

2795

3655

2000*1475

10305

3600

17690

12500

1000

5380

4570

3010

3840

1475*1475

12830

4310

20990

16000

1210

6580

5235

3295

4615

2000*1475

16010

6650

27660

20000

1440

7950

5360

3415

4660

2000*1475

18820

7600

32170

25000

1700

9400

5830

3810

4860

2000*1475

22360

9800

42600

31500

2020

112000

6290

4290

5260

2000*1475

25110

12010

49960

Note: 1.For the transformer of low voltage 10.5kV, the connection group symbol is applicable to Dyn11.

Note: 2.For the transformer of rated capacity 3150kVA or above, the -5% tapping position is for maximum current tap.

Note: 3.When the annual average load rate for the transformer is between 35% to 45%, the loss value in the table can obtain the highest operational efficiency.

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