110kV Class 6300kVA ~ 63000kVA Three-phase Triple-winding Off-circuit Tap Changer Power Transformer

Rated capacity (kVA)

Voltage combination and tap range

Bonding Group Label

Level 1 Energy Efficiency

Level 2 Energy Efficiency

Level 3 Energy Efficiency

Short circuit impedance (%)

High voltage and tap range (kV)

Medium voltage (kV)

Low voltage (kV)

No-load loss (kW)

Load loss (kW)

No-load loss (kW)

Load loss (kW)

No-load loss (kW)

Load loss (kW)

Step-up

Step-down

6300

110±2 × 2.5%

115±2 × 2.5%

121±2 × 2.5%

36

37

38.5

6.3

6.6

10.5

21

YNyn0d11

4.9

40

5.8

40

7.1

42

High-Medium 17.5~18.5

High-Low 10.5

Medium-Low 6.5

High-Medium 10.5

High-Low 17.5~18.5

Medium-Low 6.5

8000

5.8

48

6.9

48

8.5

50

10000

6.9

56

8.2

56

10.1

59

12500

8.1

67

9.6

67

11.8

70

16000

9.8

81

11.6

81

14.3

86

20000

11.6

95

13.7

95

16.9

101

25000

13.5

113

16

113

19.7

120

31500

16.2

134

19.1

134

23.5

142

40000

19.1

161

22.6

161

27.8

170

50000

22.9

192

27

192

33.3

202

63000

27.1

230

32

230

39.4

243

Note: 1. The capacity allocation of high, medium and low voltage windings is (100/100/100)%;

2. Transformers with various special parameters and performance can be manufactured according to user requirements.