ZW85-40.5kV Series Indoor Vacuum Circuit Breaker(60~70USD/PC)

Description

This circuit breaker is suitable for three-phase AC 50Hz, 40.5kv system. It can be used in industrial and mining enterprises, power plants and substations to switch load current, overload current, short circuit current, and is suitable for frequent operation occasions.

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Description

Details
project unit parameter
Rated voltage kV 40.5
1mina power frequency withstand voltage (effective value) kV 95
Lightning impulse withstand voltage (peak value) kV 185
Rated frequency Hz 50
Rated current A 1250 /1600 /2000
Rated short-time withstand current kA 25 / 31.5
Rated peak withstand current kA 63 / 80
Rated short-circuit duration s 4
Rated short circuit breaking time kA 25 / 31.5
Rated short-circuit making current kA 63 / 80
Rated operating sequence 0-0.3s-Co-180s-Co
Breaking time ms <80
Rated short-circuit breaking current breaking times times 20
Single capacitor bank breaking current A 630
Back-to-back capacitor bank breaking current A 400
Rated operating voltage v -110/-110 -220/-220
Mechanical life times 10000

 

Description

This circuit breaker is suitable for three-phase AC 50Hz, 40.5kv system. It can be used in industrial and mining enterprises, power plants and substations to switch load current, overload current, short circuit current, and is suitable for frequent operation occasions.

 

Product model and meaning

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