Outdoor High Voltage Vacuum Circuit Breaker
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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.
Name | Unit | ZW32-12(G)/T400-12.5 | ZW32-12(G)/T630-16 | ZW32-12(G)/T630-20 | |
Rated voltage | kV | 12 | |||
Rated current | A | 400 | 630 | 630 | |
Rated short-circuit breaking current | kA | 12.5 | 16 | 20 | |
Rated short-to-medium current (peak) | 31.5 | 40 | 50 | ||
Rated peak withstand current | 31.5 | 40 | 50 | ||
Rated short-time withstand current | 12.5 | 16 | 20 | ||
Rated short circuit duration | S | 4 | |||
Rated insulation level | Lightning impulse withstand voltage (peak) | kV | Interphase, to ground 75, fracture 85 | ||
1min power frequency withstand voltage | Interphase, to ground 42, fracture 48 | ||||
Rated operation sequence | Separate -0.3s – combined -180s – combined (motorized mechanism) | ||||
Rated short circuit current breaking times | times | 30 | |||
Mechanical life | 10000 | ||||
Rated operating voltage (divided coil) | v | DC220,100, AC220 | |||
Dynamic static head allows wear cumulative thickness | mm | 3 | |||
Overcurrent release rated current | A | 5 | |||
Current transformer current ratio | 200/5 400/5 600/5 | ||||
Contact opening distance | mm | 9±1 | |||
Contact overtravel | 2±0.5 | ||||
Average opening speed | m/s | 1.2±0.3 | |||
Average closing speed | 0.6±0.2 | ||||
Opening time | ms | 30-60 | |||
Closing time | 20-40 | ||||
Closing bounce time | ≤20 | ||||
Three-phase switching | ≤2 | ||||
DC resistance per phase loop | μΩ | ≤80 | |||
Energy storage motor | Rated voltage | V | -220 | ||
rated power | W | 200 | |||
Energy storage time | S | ≤8 | |||
Isolation switch | Loop resistance (circuit breaker terminal to isolation switch inlet board) | μΩ | ≤120 | ||
Center yaw amount when three-phase knife shutter is closed | mm | ≤2 | |||
Three-phase knife gate division and closing synchronization deviation | ≤2 | ||||
Conductive part to ground insulation distance | ≥160 | ||||
Fracture opening | ≥200 | ||||
Weight | kg | 80 |
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