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Outdoor high voltage intelligent demarcation
vacuum circuit breaker (watchdog)
ZW32-12F 户外高压智能分界真空断路器 ( 看门狗 )

主要技术参数 /The main technical parameters

项目 Project 单位 Unit 参数 Parameter
额定电压 Rated voltage kV 12
额定电流 Rated current A 630. 1250
额定频率 Rated frequency Hz 50
工频耐压 (1min) 干式 ( 相间、对地 / 断口 ) 42/48
Power frequency Dry type (interphase, ground/fracture)
withstand 湿试 ( 对地、外绝缘 ) kV
voltage (1min) Wet test (grounding, external insulation) 34
雷电冲击耐受电流 ( 峰值 )( 相间、对地 / 断口 )Lightning impulse kA 75/85
withstand current (peak) (interphase, ground/fracture)
额定短路开断电流 Rated short-circuit breaking current kA 20 25
额定短路关合电流 ( 峰值 )Rated short circuit closing current (peak) kA 50 63
额定蜂值耐受电流 Rated bee value withstand current kA 50 63
4S 短时耐受电流 4S short-time withstand current kA 20 25
额定操作循环 Rated operating cycle 分 -0.3s- 合分 -180s- 合分 Minutes -0.3s - combined points
- 180s - combined points
额定短路电流开断次数 Rated short circuit current breaking times 次 30
机械寿命 Mechanical life 次 10000
二次回路 1min 工频耐压 kV 2
Secondary circuit 1min power frequency withstand voltage
触头开距 Contact opening distance mm 9±1
触头超行程 Contact overtravel mm 2.5 ±1
分闸速度 Opening speed m/s 1.1 ±0.3
合闸速度 Closing speed m/s 0.6 ±0.2
触头合闸弹跳时间 Contact closing bounce time ms ≤2
相间中心距离 Interphase center distance mm 340 ±2
三相分合闸不同期性 Three-phase switching ms ≤2
各相导电回路电阻 Conductive loop resistance of each phase μΩ ≤ 80( 带隔离≤ 150)/ ≤ 80 (with isolation ≤ 150)
重量 Weight kg 约 70 /About 70

外形及安装尺寸 (mm)/Shape and installation size (mm)

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