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); |
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