Rated Voltage12kv VMD1 Vacuum Circuit Breakers / Average Breaking Speed 0.9 - 1.3

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

Rated?Frequency

Hz

50

Rated?current?

A

630

630

1250

1250

1250

1250

1600

1600

2000

2000

2500

2500

3150

3150

4000

4000

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

kA

20

25

31.5

40

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

20

25

31.5

40

Rated?peak?withstand?current??

50

63

80

100

Rated?short-circuit?closing?current?(peak?value)

50

63

80

100

4S?rated?short-time?withstand?current??4s?

20

25

31.5

40

Rated?shock?steady?current?

50

63

80

100

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

630/400?(The?value?shoule?be?800/