Standards DL403, GB / T 11022 -1999 Protect Cable 24kv VMD4 Vacuum Circuit Breakers

NO

Item

Unit

Technical?Date

1

Rated?voltage?

kV

24

2

Rated?insulating?level

Rated?short?time?power?

frequency?withstand?voltage(1min)??????????

65

Rated?lighting?inpulse

?withstand?voltage?(peak?value)??????????????

125

3

Rated?Frequency

Hz

50

4

Rated?current?

A

630

5

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

kA

20

6

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

20

7

Rated?peak?withstand?current??

50

8

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

50

9

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

20

10

Rated?Dynamic?Current

50

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???????????????????????????????

13

Duration?of?rated?short-circuit?current

S

4

14

Power?frequency?withstand?voltage?of?secondary?circuit

V

2000

15

Rated?operationl?voltage

Making?coil

AC110/220???DC110/220

Breaking?coil

AC110/220???DC110/220

Energy-storage?motor?

AC110/220???DC110/220

16

Making?time??(under?Rated?voltage)

ms

≤60

17

Breaking?time(under?Rated?voltage)

≤45

18

Permitted?abrasion?thickness?of?moving?and?fixed?contacts?

mm

3

19

Energy?storage?times?

S