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Vacuum Interrupter 61187A(12KV/630A-20KA)

BOV Vacuum interrupter(VI) are mainly utilized on various vacuum Circuit-breaker, Vacuum Load-breaking Switch, High Speed Rail Switch, Vacuum contactor and VI is on rated voltage of 12kV, 24kV, 40.5kV, 72.5kV, 126kV.

主要技术参数(接地开关用)MAIN  TECHNICA  DATA(FOR  EARTHING  SWITCH)

 

额定电压 Rated voltage

 

12KV

 

额定电流 Rated current

 

630A

 

额定频率 Rated frequency

 

50HZ

 

短时(1min)工频耐受电压 Short-time(1min) power-frequency withstand voltage

 

*42KV

 

雷电冲击耐受电压(峰值) Lightning impulse withstand voltage(peak)

 

*75KV

 

额定峰值耐受电流 Rated peak withstand current

 

50KA

 

额定短时耐受电流(4秒) Rated short-time withstand current(4s)

 

20KA

 

额定触头压力下限时的回路电阻 Circuit resistance at minimum added force

 

≤40μΩ

 

机械寿命 Mechanical life

 

10000次

 

触头自闭力 Closing force due to bellows and atmosphere

 

40±20N

 

额定开距下的触头反力 Force required to hold contacts open at full stroke

 

110±20N

 

贮存期 Shelf life

 

20年

 

质量/动触头质量 Total mass of interrupter/Moving mass of interrupter

 

0.70Kg/0.21Kg

 

配套真空开关的机械参数(建议值)MECHANICAL DATA OF CIRCUIT-BREAKING RECOMMENDATIONS WITH THE INTERRUPTERS

 

触头开距 Rated contact stroke

 

7±1mm

 

触头接触行程 Contact connection stroke

 

4±1mm

 

额定触头压力 Added force on closed contacts

 

700±50N

 

备注(Note):

* 须有外绝缘保护(With insulation cover);