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VS1-24 3 pole high voltage vacuum circuit breaker(vcb)24kV plateau type indoor A
 Functional features   

Vs1-24 plateau indoor ac vacuum circuit breaker is rated voltage 24kV, three-phase ac 50Hz indoor high voltage switch equipment, suitable for power plant, substation and industrial and mining enterprises and other power transmission and distribution system control or protection switch.Especially suitable for high altitude area break important load and frequently operate your place.

The manufacture of circuit breakers conforms to China's national standard gb1984-2003 ac high-voltage circuit breakers, jb1855-1996 (3.6-40.5kv indoor vacuum circuit breakers ordering technical conditions) and relevant IEC standards, and has reliable interlocking function.

The operating mechanism of circuit breaker is spring energy storage type, which can be operated by ac or dc electric or manual operation.The circuit breaker can be equipped with permanent magnet operating mechanism with long life, the mechanical life can reach 100,000 times, which can be used for extremely frequent operation.

The circuit breaker is designed as a front and rear subassembly, which can be used as a fixed installation unit or as a central unit with the chassis.


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1. 海拔高度:低于4800m。
2. 环境温度:最高+40℃, 最低-15℃。
3. 相对湿度:日平均值不大于95%,月平均不大于90%。
4. 地震烈度:低于8级。
5. 无火灾、 爆炸、 无腐蚀性气体及剧烈振动的场所。
Environmental conditions

1. Altitude: less than 4800m.

2. Ambient temperature: highest +40℃, lowest -15℃.

3. Relative humidity: daily average is no more than 95% and monthly average is no more than 90%.

Earthquake intensity: below 8.

5. No fire, explosion, corrosive gas and violent vibration.



Item

Unit

data

Rated voltage

Kv

24

Rated frequency

Hz

50

Rated current

A

630/1250

630/1250

630/2000

1250/4000

Rated short circuit breaking current

KA

20

25

31.5

40

Rated short-circuit closing current (peak

KA

50

63

80

100

Rated short circuit duration

S

4

Rated number of short circuit breaking current

TIME

50

30

Sequence of rated operations

 

O0.3s-C0-180s-CO

Rated lightning shock withstand voltage (fracture)

KV

125

Rated 1min power frequency withstand voltage (fracture)

KV

65

Closing time

MS

≤100

OFF time

MS

≤50

Mechanical life

TIME

200000

Rated energy storage and operating voltage

V

220/110

ON OR OFF time

Ms

≤65

Energy storage time

S

≤15


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