Outdoor High Voltage Vacuum Circuit Breaker

ZW31-12/630-Outdoor  AC High Voltage vacuum circuit breaker  for rated voltage of 12kV,Three-phase AC 50HZ outdoor distribution equipment.Mainly used for opening,closing and electronic system load current,overload current and short circuit current.For susbtation and industrial and mining enterprises in the power distribution system for protection and control using.Rural power grid the place of frequent operation.Also can be used as power disconnect switch,after adding controller,can realized the automation of power distribution network.   NameUnitZW32-12(G)/T400-12.5ZW32-12(G)/T630-16ZW32-12(G)/T630-20   Rated voltagekV12   Rated currentA400630630Rated short-circuit breaking currentkA12.51620   Rated short-to-medium current (peak)31.54050   Rated peak withstand current31.54050   Rated short-time withstand current12.51620   Rated short circuit durationS4 Rated insulation level   Lightning impulse withstand voltage (peak)kVInterphase, to ground 75, fracture 85 1min power frequency withstand voltageInterphase, to ground 42, fracture 48 Rated operation sequence Separate -0.3s - combined -180s - combined (motorized mechanism)  Rated short circuit current breaking timestimes30   Mechanical life10000 Rated operating voltage (divided coil)vDC220,100, AC220   Dynamic static head allows wear cumulative thicknessmm3   Overcurrent release rated currentA5   Current transformer current ratio 200/5     400/5     600/5   Contact opening distancemm9±1  Contact overtravel2±0.5   Average opening speedm/s1.2±0.3   Average closing speed0.6±0.2 Opening timems30-60   Closing time20-40  Closing bounce time≤20Three-phase switching≤2   DC resistance per phase loopμΩ≤80   Energy storage motor   Rated voltageV-220   rated powerW200   Energy storage timeS≤8  Isolation switch   Loop resistance (circuit breaker terminal to isolation switch inlet board)μΩ≤120  Center yaw amount when three-phase knife shutter is closedmm≤2   Three-phase knife gate division and closing synchronization deviation≤2   Conductive part to ground insulation distance≥160  Fracture opening≥200   Weightkg80  /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1