Puffer type gas circuit breaker

Details Puffer type gas circuit breaker Puffer type gas circuit breaker

1975-04-15

1977-02-22

Harris, George

Electricity: circuit makers and breakers

Liquid contact

Time delay

200150G, H01H 3382

Patent

active

040094588

ABSTRACT:
In a puffer type gas circuit breaker comprising at least a pair of main movable and fixed contacts, a puffer device and a pair of preinsertion resistor contacts inserted electrically in parallel with the main movable and fixed contacts, the preinsertion resistor contacts are closed prior to the closing of the main movable and fixed contacts, and are separated a short time after the main movable and fixed contacts have been closed.

REFERENCES:
patent: 2981814 (1961-04-01), Friedrich
patent: 3763340 (1973-10-01), Noack
patent: 3922512 (1975-11-01), Benham

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