220kV Oil-Immersed Power Transformer
Product Characteristics
The power transformers designed and manufactured by the company have a complete range of products and stable performance. All technical performance indicators are in the forefront of the transformer industry in China. The products have the advantages of reasonable structure, reliable insulation, low loss, low partial discharge, low temperature rise, low noise, strong anti-short circuit ability, strong anti-lightning impulse ability, no leakage, etc. The main technical performance indicators have reached the international advanced level. Products have been exported to more than 20 countries and regions such as the United States, Canada, Russia, and Indonesia.
Product Parameters

1、220kV Class 31500kVA ~ 240000kVA Three -Phase Double-Winding On-Load Voltage Regulating Power Transformers and Non-Excitation Voltage Regulating Power Transformers


Rated capacity (kVA)

Voltage combination

Vector group

No-load loss(kW)

Load loss(kW)

No-load current(%)

Short circuit impedance (%)

High voltage (kV)

Low voltage (kV)

31500

220

230

6.3

6.6

10.5

21

36

37

38.5

YNd11

30.0

128

0.57

12~14

40000

36.0

149

0.57

50000

43.0

179

0.53

63000

50.0

209

0.53

90000

64.0

273

0.45

120000

10.5

21

36

37

38.5

79.0

338

0.45

150000

92.0

400

0.41

180000

108

459

0.38

120000

81.0

337

0.45

150000

66

69

96.0

394

0.41

180000

112

451

0.38

240000

140

560

0.30

Note:

The technical parameters and dimensions of special specifications or non-standard products are determined through negotiation between the supplier and the buyer.


2、220kV Class 31500kVA ~ 240000kVA Three-Phase Three-Winding On-Load Voltage Regulating Power Transformer and Non-Excitation Voltage Regulating Power Transformer


Rated capacity (kVA)

Voltage combination

Vector group

No-load loss(kW)

load loss(kW)

No-load current(%)

Capacity distribution (%)

Short circuit impedance (%)

High Voltage (kV)

Medium voltage (kV)

low voltage (kV)

31500

220

230

69

115

121

6.3

6.6

10.5

21

36

37

38.5

YNyn0d11

35.0

153

0.63

100/100/100

100/50/100

100/100/50

High-Medium

12 - 14

High-Low

22 - 24

Medium-Low

7 - 9

40000

41.0

183

0.60

50000

48.0

216

0.60

63000

56.0

257

0.55

90000

10.5

21

36

37

38.5

73.0

333

0.44

120000

92.0

410

0.44

150000

108

487

0.39

180000

124

598

0.39

240000

154

741

0.35

Note:

The technical parameters and dimensions of special specifications or non-standard products are determined through negotiation between the supplier and the buyer.


3、220kV Class 31500kVA ~ 240000kVA Three-Phase Three-Winding On-Load Voltage Regulating Auto Power Transformer and Non-Excitation Voltage Regulating Auto Power Transformer


Rated capacity (kVA)

Voltage combination

Vector group

No-load loss(kW)

Load loss(kW)

No-load current(%)

Capacity distribution(%)

Short circuit impedance

(%)

High voltage (kV)

Medium voltage (kV)

low voltage (kV)

31500

220

230

115

121

6.3

6.6

10.5

21

36

37

38.5

YNa0d11

20.0

102

0.44

100/100/50

High-Medium

8-11

High-Low

28-34

Medium-Low

18-24

40000

24.0

125

0.44

50000

28.0

149

0.39

63000

33.0

179

0.39

90000

40.0

234

0.33

120000

10.5

21

36

37

38.5

51.0

292

0.33

150000

60.0

346

0.28

180000

68.0

398

0.28

240000

83.0

513

0.24

Note:

The technical parameters and dimensions of special specifications or non-standard products shall be determined through negotiation between the supplier and the buyer