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Coil Structure: -
Phase: -
Usage: -
Brand Name: E-heart

Specifications

Products structure and technical features

E locates closely to terminal users will lower voltage at a suitable level. Transformer, lower voltage at a level which is suitable for electrical equipments, is called distribution transformer, used in daily lighting and factory producing, low voltage is usually less than addition, distribution transformer's capacity is small, usually less than 3150kVA; and primary voltage is also low, at less than 35kV.

Our distribution transformer adopt "CAD" design concept and its performance is accord with IEC60076,GB1094,GB/T6451.the core is manufactured with high quality cold rolled grain-oriented silicon steel, and steps overlapping structure is used for core manufacture, after overlapping, brush special hardener to make cores solid, thus to effectively reduce no-load loss and noise. the oil tank is corrugated structure, produced by our factory's oil tank automatic production line; surface pre-treatment solution and coated powder all use high-quality brand products; firstly be shot blasted, then spray powder, at last solidified in high temperature, so our oil tank has strong corrosion resistance. Winding is manufactured with high strength enameled wires(or paper covered wires),ampere-turns evenly distribute, insulation structure is reasonable, so winding's short circuit impedance is excellent. The body of distribution transformer adopts suspended structure, all sealing surface use quality acrylic rubber, can effectively prevent cold aging.

Technical Parameter and features

Sheet 1, Basic performance parameter of S11 type 10kV three-phase oil-immersed distribution transformer

Rated 
Capacity(kVA)

Rated voltage(kV)

Vector group

No-load
Current(%)

Loss(W)

Short 
Circuit
Impedance

Outline 
Dimensions(mm)

Weight(kg)

Gage 
Horizontal*
Vertical (mm)

H.V.

L.V.

No load

with 
load

L

W

H

body
Weight

oil
Weight

total

10

6.0
6.3
10
±5%
or
±2*2.5%

0.4

Yyn0
Dyn11

3.8

55

310

4.0

615

600

945

110

50

245

350

20

3.0

80

475

750

615

975

125

55

290

350

30

2.1

100

600

1025

625

995

145

67

330

400

50

2.0

130

870

1075

640

1025

224

90

410

400

63

1.9

150

1040

1125

665

1065

240

105

480

400

80

1.8

180

1250

1150

675

1105

328

120

560

400

100

1.6

200

1500

1180

695

1115

340

154

590

400

125

1.5

240

1800

1200

705

1205

390

168

680

550

160

1.4

280

2200

1235

725

1225

499

179

840

550

200

1.3

340

2600

1295

745

1255

592

188

960

550

250

1.2

400

3050

1365

755

1275

724

245

1120

550

315

1.1

480

3650

1330

755

1335

712

300

1150

550

400

1.0

570

4300

1395

780

1375

953

320

1430

550

500

1.0

680

5150

1465

825

1455

1120

340

1690

660

630

0.9

810

6200

4.5

1565

845

1475

1289

440

1960

660

800

0.8

980

7500

1685

925

1575

1430

490

2350

820

1000

0.7

1150

10300

1855

1095

1685

1790

560

2720

820

1250

0.6

1360

12000

1925

1195

1715

2080

650

3300

820

1600

0.6

1640

14500

1995

1235

1805

2300

720

3800

820

2000

0.6

1940

18300

2155

1275

1915

3130

790

5145

820

2500

0.5

2290

21200

5.5

2265

1385

1945

4198

930

6420

1070

 

Sheet 2, Basic performance parameter of S13 type 10 kV three-phase oil-immersed distribution transformer

Rated
Capacity(kVA)

Voltage group and tapping range

Vector
group

No-load
Loss kW

with load kW

No load 
Current %

Short 
Circuit
Impedance

Outline 
Dimensions(mm)

Weight(kg)

Gage 
Horizontal*
Vertical (mm)

H.V. KV

H.V.
Tapping 
range

L.V. KV

L

W

H

Oil weight

Oil weight

30

6
6.3
10
10.5
11

±5
±2*2.5

0.4
0.69

Yyn0
Dyn11

0.08

0.63

2.1

4.0

1070

740

1380

100

420

400*400

50

0.10

0.91

2.0

1070

740

1425

125

515

63

0.11

1.09

1.9

1110

760

1430

135

570

550*550

80

0.13

1.31

1.8

1140

780

1450

140

605

100

0.15

1.58

1.6

1155

785

1480

150

670

125

0.17

1.89

1.5

1160

790

1520

160

750

160

0.20

2.31

1.4

1230

815

1535

185

890

200

0.24

2.73

1.3

1260

830

1585

220

1000

250

0.29

3.20

1.2

1310

860

1640

230

1090

660*660

315

0.34

3.83

1.1

1350

860

1680

255

1320

400

0.41

4.52

1.0

1390

880

1740

275

1490

500

0.48

5.41

1.0

1530

940

1860

315

1650

630

0.57

6.20

0.9

4.5

1630

1050

1845

365

2090

820*820

800

0.70

7.50

0.8

1785

1165

1985

415

2700

1000

0.83

10.30

0.7

2280

1180

2220

500

3250

1250

0.97

12.00

0.6

2420

1220

2560

560

3700

1600

1.17

14.50

0.6

2460

1320

2605

640

4400

2000

1.55

18.30

0.5

5.5

2480

2400

2940

840

5450

1070*1070

2500

1.83

21.20

0.4

2480

2620

3040

980

6220

 

Sheet 3, Basic performance parameter of S11-M-30-2500/20 type distribution transformer

Rated 
Capacity(kVA)

Voltage group and tapping range

Vector
group

No-load 
Loss kW

with load kW

No load 
Current %

Short
Circuit
Impedance

Outline 
Dimensions(mm)

Weight(kg)

Gage
Horizontal*
Vertical (mm)

H.V. KV

H.V.
Tapping
range

L.V. KV

L

W

H

Oil weight

Oil weight

30

20

±5
±2*2.5

0.4

Dyn11

0.09

0.66

2.1

5.5

1040

600

1040

75

350

400*400

50

0.13

0.96

2.0

1040

600

1085

90

445

63

0.15

1.145

1.9

1080

620

1090

100

500

550*550

80

0.18

1.37

1.8

1110

640

11110

105

535

100

0.20

1.65

1.6

1235

800

1210

120

580

125

0.24

1.98

1.5

1245

810

1220

125

660

160

0.28

2.42

1.4

1265

830

1230

130

700

200

0.34

2.86

1.3

1140

720

1330

195

835

250

0.40

3.35

1.2

1325

850

1490

410

1110

660*660

315

0.48

4.01

1.1

1380

850

1725

420

1610

400

0.57

4.73

1.0

1400

885

1810

430

1720

500

0.68

5.66

1.0

1500

890

1850

480

1940

630

0.81

6.82

0.9

6.0

1645

970

1850

490

2055

820*820

800

0.98

8.25

0.8

1755

1025

1890

520

2600

1000

1.15

11.33

0.7

2270

1060

1890

585

2870

1250

1.35

13.20

0.6

2400

1120

2040

620

3560

1600

1.63

15.95

0.6

2460

1220

2085

690

4260

2000

1.95

19.14

0.6

2480

2400

2940

860

5550

2500

2.34

22.22

0.5

2480

2620

3040

990

6320

 

Sheet 4, Basic performance parameter of S11-M-30-2500/20(10) type distribution transformer

Rated 
Capacity(kVA)

Voltage group and tapping range

Vector
group

No-load 
Loss Kw

with 
Load Kw

No load
Current %

Short
Circuit
Impedance

Outline 
Dimensions(mm)

Weight(kg)

Gage 
Horizontal*
Vertical (mm)

H.V. Kv

H.V.
Tapping
range

L.V. Kv

L

W

H

Oil 
Weight

oil
Weight

30

20(10)

±5
±2*2.5

0.4

Dyn11

0.09

0.66

2.1

5.5

1040

600

1070

75

360

400*400

50

0.13

0.96

2.0

1040

600

1095

90

460

63

0.15

1.145

1.9

1080

620

1100

100

520

550*550

80

0.18

1.37

1.8

1110

640

1120

105

555

100

0.20

1.65

1.6

1235

800

1220

120

590

125

0.24

1.98

1.5

1245

810

1230

125

670

160

0.28

2.42

1.4

1265

830

1250

130

720

200

0.34

2.86

1.3

1140

720

1350

195

855

250

0.40

3.35

1.2

1325

850

1500

410

1130

660*660

315

0.48

4.01

1.1

1380

850

1740

420

1630

400

0.57

4.73

1.0

1400

885

1820

430

1735

500

0.68

5.66

1.0

1500

890

1870

480

1990

630

0.81

6.82

0.9

6.0

1645

970

1875

490

2055

820*820

800

0.98

8.25

0.8

1755

1025

1880

520

2600

1000

1.15

11.33

0.7

2270

1060

1880

585

2870

1250

1.35

13.20

0.6

2400

1120

2040

620

3560

1600

1.63

15.95

0.6

2460

1220

2095

850

4385

2000

1.95

19.14

0.6

2480

2400

2940

860

5550

2500

2.34

22.22

0.5

2480

2620

3040

990

6320

above data just for reference, if have special requirements for performance/size, we can produce according to customers' request.

Distribution Transformer 10kV 20kV