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(断路器用)MAIN TECHNICA DATA(FOR CIRCUIT BREAKER) |
|
额定电压 Rated voltage |
12KV |
额定电流 Rated current |
630A |
额定频率 Rated frequency |
50/60HZ |
额定短路开断电流 Rated short-circuit breaking current |
20KA |
额定短路开断电流开断次数Operations of short-circuit breaking current interruption |
30次 |
最大直流分量 Max.DC-component |
40% |
额定短路关合电流 Rated short-circuit making current |
50KA |
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 |
额定单个电容器组开断电流 Rated breaking current of single capacitor bank |
#630A |
额定背对背电容器开断电流 Rated breaking current of back to back capacitor bank |
#400A |
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 |
额定触头压力下限时的回路电阻 Circuit resistance at minimum added force |
≤20μΩ |
机械寿命 Mechanical life |
50000次 |
触头自闭力 Closing force due to bellows and atmosphere |
120±20N |
额定开距下的触头反力 Force required to hold contacts open at full stroke |
150±30N |
触头允许磨损厚度 Contact erosion limit |
3mm |
贮存期 Shelf life |
20年 |
质量/动触头质量 Total mass of interrupter/Moving mass of interrupter |
0.91Kg/0.3Kg |
额定操作顺序 Rated operating sequence |
O-0.3s-CO-180s-CO |
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 |
6-7mm |
触头接触行程 Contact connection stroke |
3±0.5mm |
平均分闸速度(0-6mm行程) Average opening speed(0-6mm stroke) |
1.1±0.2m/s |
平均合闸速度(6mm-触头闭合) Average closing speed(6mm-contact making) |
0.6±0.2m/s |
触头初压力 Added external contact force at contact touch point |
≥800N |
额定触头压力 Added force on closed contacts |
1300±100N |
触头合闸弹跳时间 Max.bouncing duration |
≤2ms |
触头分合闸不同期 Out of simultaneity of contact closing and opening |
≤1ms |
分闸触头反弹幅值 Max. rebound distance |
≤0.5mm |
分闸触头过冲幅值 Max. overtravel |
≤0.5mm |
备注(Note): # 订货时需与BOV公司协商(Must consult with BOV); * 须有外绝缘保护(With insulation cover); |