VMD2 12kv Vacuum 3 Phase Circuit Breakers / Rated Short Circuit Breaking Current 20, 25

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

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

while?the?current?is?40kA)?????????????????????????????????

13

Duration?of?rated?short-circuit?current