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Indoor High Voltage Vacuum Circuit Breaker

ZN85-40.5 indoor HV vacuum circuit breaker
  • ZN85-40.5 indoor HV vacuum circuit breaker

ZN85-40.5 indoor HV vacuum circuit breaker

ZN85-40.5 Indoor High Voltage Vacuum Circuit Breaker
Summary
ZN85-40.5 indoor HV vacuum circuit breaker is a 3-phase AC 50Hz 40.5kV indoor

Detailed introduction

ZN85-40.5 indoor HV vacuum circuit breaker

ZN85-40.5 Indoor High Voltage Vacuum Circuit Breaker

Summary
ZN85-40.5 indoor HV vacuum circuit breaker is a 3-phase AC 50Hz 40.5kV indoor switch equipment.
? Installation way: withdrawable type;
? Operating mechanism: spring operating mechanism;
? Pole type: assembled pole, embedded pole;
? Application: switchgear KYN61-40.5.
? Secondary plug: 58pins, 64pins.

※ Environmental Conditions
? Ambient temperature: -15℃~+40℃;
? Altitude: ≤1000m;
? Relative humidity: daily average ≤95%, monthly average ≤90%;
? Earthquake intensity: ≤8 level;
? Places without fire, explosion hazard, serious filthy, chemical corrosion, as well as intense Vibration.

Model Implication


Specifications

No. Item Units Parameters
1 Rated voltage
 
kV 40.5
2 Rated insulation level Power frequency withstand voltage 1min (effective value) kV 95
Lightning impulse withstand voltage (effective value) kV 185
3 Rated current A 1250/1600/2000
4 Rated frequency Hz 50
5 Rated short-time withstand current kA 25 31.5
6 Rated peak withstand current kA 63 80
7 Rated short-circuit breaking current kA 25 31.5
8 Rated short circuit making current(peak value) kA 63 80
9 Rated Shoort -circuit Continuing Time S 4
10 Rated operating sequence   C-0.3s-CO-180s-CO
11 Breaking time ms <80
12 Rated short circuit breaking current times Time 20
13 Single capacitor unit breaking current A 630
14 Machinery life Time 10000
15 Rated operating voltage V AC/DC 110,220
16 Rated single back-to-back capacitor device current A 400

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