Combined Transformer Substation

Type

2.Transformer Main Technical Parameter Table

75/85

kV effective value

Impulse withstand voltage ground,inter-phase/isolation notch

15

42/48

kV effective value

1 min power frequency withstand voltage ground,inter-phase/isolation notch

14

50

kA

On/off current

13

20

kA/2S

Fuse combination switch short-circuit on/off current

12

16

A

Idle transformer on/off current

11

1400

A

Drifting current

10

630

A

Nominal load on/off current

9

31.5

A

5% nominal on/off current

8

50

kA

Peak current when grounding switch is closed for a short time

7

20

kA/2S

Withstanding current when grounding switch is closed for a short time

6

50

kA

Nominal short peak current

5

20

kA/2S

Nominalshort withstanding current

4

630

A

Nominal current

3

50

Hz

Nominal frequency

2

12

kV

Nominal voltage

1

Parameter

Unit

Name