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(重合器用)MAIN TECHNICA DATA(FOR RECLOSER) |
|
额定电压 Rated voltage |
15.5KV |
额定电流 Rated current |
800A |
额定频率 Rated frequency |
50/60HZ |
额定短时(1min)工频耐受电压Rated Short-time(1min) power-frequency withstand voltage |
*50KV |
额定雷电冲击耐受电压(峰值)Rated Lightning impulse withstand voltage(peak) |
*110KV |
额定短路开断电流 Rated short-circuit breaking current |
16KA/12.5KA |
额定短路开断电流开断次数Operations of short-circuit breaking current interruption |
15-20%,88;45-55%,112;90-100%,32 |
额定短路关合电流 Rated short-circuit making current |
40KA/31.5KA |
额定峰值耐受电流 Rated peak withstand current |
40KA/31.5KA |
额定短时耐受电流(3秒) Rated short-time withstand current(3s) |
16KA/12.5KA |
额定线路充电开断电流 Rated breaking current of line charging |
2A |
额定电缆充电开断电流Rated cable-charging breaking current |
10A |
额定空载变压器开断电流Rated breaking current of no-load transformer |
22A |
额定触头压力下限时的回路电阻 Circuit resistance at minimum added force |
≤25μΩ |
机械寿命 Mechanical life |
10000次 |
触头自闭力 Closing force due to bellows and atmosphere |
60±30N |
额定开距下的触头反力 Force required to hold contacts open at full stroke |
≤155N |
触头允许磨损厚度 Contact erosion limit |
3mm |
贮存期 Shelf life |
20年 |
动触头导向套耐受温度 Temperature endurance of lead bushing of moving |
170℃ |
额定操作顺序 Rated operating sequence |
O-0.3s-CO-1.8s-CO-1.8s-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 |
12±0.5mm |
触头接触行程 Contact connection stroke |
4±1mm |
平均分闸速度(0-6mm行程) Average opening speed(0-6mm stroke) |
1.2±0.2m/s |
平均合闸速度(6mm-触头闭合) Average closing speed(6mm-contact making) |
0.8±0.2m/s |
额定触头压力 Added force on closed contacts |
1300±100N/670~870N |
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 |
≤2mm |
备注(Note): * 须有外绝缘保护(With insulation cover); |
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