ZN63(VS1)-24kV/36kV Handcart-Type Indoor Vacuum Circuit Breaker with Side Mounting

Item

Description

Unit

Data

1

Rated voltage

KV

24

2

Max. voltage

KV

24

3

Rated current

A

630/1250/2500

4

Rated short circuit breaking current

KA

20/25/31.5

5

Rated short circuit making current

KA

50/63/80

6

Rated peak withstand current

KA

50/63/80

7

4S Rated withstand current

KA

20/25/31.5

8

Rated insulation level

Power frequency voltage(when losing a circuit)

KV

Dreaker 65

Impulse withstand voltage(when losing a circuit)

Dreaker 125

9

Rated operating sequence

OC-0.3s-CO-180S-CO

10

Mechanical life

Times

20000

11

Rated short circuit current breaking time

Times

274

12

Rated close brake voltage of operating machnie

V

110,220

13

Rated break brake voltage of operating machnie

V

110,220

14

Contact stroke

mm

13±1

15

Exceed range(the compress length of contact sping)

mm

3.5±0.5

16

Different period of three-phase break and close break

ms

≤2

17

The jump time of contact close break

ms

≤2

18

Average break speed

m/s

1.1~1.7

19

Average closing speed

m/s

0.6~1.1

20

Opening time

Ubder max.operating voltage

S

≤0.05

Under min.operating voltage

≤0.08

21

Closing time

s

0.1

22

Resistance of each phase main loop

μΩ

630≤50 1250≤45/ 1600-2500≤40

23

Contacts limit ersion

mm

3