110kV level capacity: 6300kV·A~63000kV·A three-phase double winding on-load voltage regulating power transformer

Rated capacity kV · A

Voltage combination level grading range

Bonding Group Label

No-load loss kW

Load loss kW

No-load current %

Short circuit impedance %

High pressure classification range kV

Low voltage kV

6300

110±8×1.25%

6.3

6.6

10.5

21

Ynd11

4.4

32

0.64

10.5

8000

5.3

38

0.64

10000

6.2

45

0.59

12500

7.4

53

0.59

16000

8.9

66

0.55

20000

10.6

79

0.55

25000

12.5

94

0.51

31500

14.9

111

0.51

40000

17.8

140

0.46

12 to 18

50000

21

175

0.46

63000

25

209

0.42

Note 1: On-load voltage regulating transformer, temporarily provide step-down structure products.

Note 2: According to user requirements, products with other voltage combinations can be provided.

Note 3: The-10% tap position is the maximum current tap.

Note 4: When the annual average load rate of the transformer is between 45% and 50%, the highest operating efficiency can be obtained by using the loss values in the table.