Zhejiang Pingchao Electric Co.,Ltd

24kv Indoor Vacuum Circuit Breaker

Side Mounted 24KV Vacuum Circuit Breaker

Side Mounted 24KV Vacuum Circuit Breaker

VS1-24 (VBM7) series side-installed type vacuum circuit breaker, high - voltage switchgear, three-power system is suitable for the rated voltage 24kV....
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Overview

VS1-24 (VBM7) series side-installed type vacuum circuit breaker, high - voltage switchgear, three-power system is suitable for the rated voltage 24kV. frequency 50Hz,is used as a protective and control equipment,due to the special advantage of the vacuum circuit breaker, especially suitable for frequent operation under rated current,or multiple breaking short circuit current place.

VS1-24 (VBM7) series side-installed type vacuum circuit breaker with fixed installation,mainly for fixed type switch cabinet, the circuit breaker can be used alone,but also can be used for ring network power supply,box-type substation and various non-standard power supply system .

Item

Description

Unit

Data

1

Rated voltage

KV

24

2

Max. voltage

KV

24

3

Rated current

A

630/1250/1600

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

50

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≤40

 23

Contacts limit ersion

mm

3

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