VS1-15kv indoor vacuum circuit breaker

No

ITEM

UNIT

PARAMETERS

1

Rated voltage

KV

15KV

2

Rated insulation level

Short-time power frequency withstand voltage (1 min)

KV

65

Lightning impulse withstand voltage (peak)

KV

125

3

Rated frequency

Hz

60

4

Rated current

A

630

5

Rated short circuit breaking current

KA

20

6

Rated short-time withstand current

KA

20

25

31.5

40

50

7

Rated short circuit continuous time

S

4

8

Rated peak withstand current

KA

50

63

80

100

125

9

Rated short circuit making current

KA

50

63

80

100

125

10

Secondary circuit power frequency withstand voltage(min)

V

2000

11

Rated single/back-to-back capacitor bank breaking current

A

(for 40KA 800/400)

12

Rated capacitor bank making surge

KA

12.5 frequency≤1000HZ)

13

Opening time(rated voltage)

ms

20~50

14

Closing time(rated voltage)

ms

35~70

15

Mechanical endurance(life)

cycle

20000(50KA for 10000cycle)

16

Rated current opening cycles(electric life)

cycle

20000(50KA for 10000cycle)

17

Rated short circit current breaking cycles

cycle

50(40KA 30;50KA 20)

18

Allowable accumulated wear thickness of moving /fixed contacts

mm

3

19

Rated closing operating voltage

V

AC 115  DC 115 (bi-volts)

20

Rated opening operating voltage

V

AC 115  DC 115 (bi-volts)

21

Energy-storage motor rated voltage

V

AC 115  DC 115 (bi-volts)

22

Energy-storage motor rated power

W

80

23

Energy-storage time

S

≤15

24

Contact spacing

mm

11±1(8±1)/15±1

25

Over-travel

mm

3.5±1

26

Contact closing bounce time

ms

≤2

27

3-phase opening and closing asynchrony

ms

≤2