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Vacuum Interrupter 61179(38KV/630A-12.5KA)

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

38KV

额定电流 Rated current

630A

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

*70KV

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

*170KV

额定短路开断电流 Rated short-circuit breaking current

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

31.5KA

额定峰值耐受电流 Rated peak withstand current

31.5KA

额定短时耐受电流(3秒) Rated short-time withstand current(3s)

12.5KA

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

额定瞬时电流Rated momentary current,RMS asymmetrical

25.6KA

额定电缆充电开断电流 Rated cable-charging breaking current

25KA

额定空载变压器开断电流 Rated breaking current of no-load transformer

22KA

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

80±30N

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

160±30N

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-2s-CO-2s-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

14±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)

1.6±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

1200±200N

触头合闸弹跳时间 Max.bouncing duration

≤3ms

触头分合闸不同期 Out of simultaneity of contact closing and opening

≤2ms

分闸触头反弹幅值 Max. rebound distance

≤1mm

 

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);