Outdoor vacuum circuit breaker

ZW32-12 Outdoor Vacuum Circuit Breaker

ZW32-12 Outdoor Vacuum Circuit Breaker

  • ZW32-12 Outdoor Vacuum Circuit Breaker

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ZW32-type outdoor high voltage vacuum circuit breaker for rated voltage 12kv three-phase AC 50Hz outdoor distribution equipment applies to power distribution system substation and industrial and mining enterprises to do to protect and control, and rural power grid frequency operation premises. It is mainly used for breaking and closing the power system load current, overloads current and short-circuit current.

Vacuum interrupter outdoor insulation using silicon rubber sleeves, long life, high reliability and good weather resistance, easy to transport, cost-effective, operating organizations to adopt a small, high reliability spring operating mechanism, simple structure, mechanical life of up to 10,000 times.

The circuit breaker can be with controller as recloser, to achieve remote control, telemetry, remote, remote adjust, “four remote” features.

No Item Unit Value
1 Rated voltage kV 12
2 Rated insulation level 1min power frequency withstand voltage Dry 42
Wet 34
Lightning impulse withstand voltage (peak) 75
3 Rated current A 630;400;200
4 Rated short-circuit breaking current kA 20;16;12.5
5 Rated operating sequence   O-0.3s-CO-180s-CO
6 Rated short-circuit breaking current breaking times times 30
7 Rated short-circuit closed current (peak) kA 50
8 Rated peak withstand current kA 50
9 Rated short-time withstand current kA 20
10 Rated short-circuit duration s 4
11 Opening time (magnetic releasing) Max operating voltage ms 23~45
Rated operating voltage
Min operating voltage 23~60
12 Closing time ms 25~45
13 Total break time ms ≤100
14 Arcing time ms ≤20
15 Mechanism life times 1000
16 Storage energy motor rated input power W 40
17 Rated operating voltage and auxiliary circuit rated voltage V DC220,110,24
18 Storage energy time on rated voltage s ≤10
19 Over-current tripper Rated current A 5
  Tripping current precision % ±10

ZW32-12 Outdoor Vacuum Circuit Breaker



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