GB1984 Power System VMD1 12kV Vacuum Circuit Breaker / Rated Frequency 50 Hz

NO

Item

Unit

Technical Date

1

Rated voltage

kV

12

2

Rated insulating level

Rated short time power frequency withstand voltage(1min)???????? ?

42

Raed lighting inpulse withstand voltage (peak value)?????????????

75

3

Rated Frequency

Hz

50

4

Rated current

A

630

630

1250

1250

1250

1250

1600

1600

2000

2000

2500

2500

3150

3150

4000

4000

5

Rated short circuit breaking current???????

kA

20

25

31.5

40

6

Rated short time withstand current??????????

20

25

31.5

40

7

Rated peak withstand current?

50

63

80

100

8

Rated short-circuit closing current (peak value)

50

63

80

100

9

4S rated short-time withstand current? 4s

20

25

31.5

40

10

Rated shock steady current

50

63

80

100

11

Rated making surge current of capacitor bank

12.5(The frequency is less than 1000Hz)

12

Rated breaking current of single/symmetrical capacitor bank

A