Gas-insulated circuit breaker

Details Gas-insulated circuit breaker Gas-insulated circuit breaker

1984-08-14

1987-05-19

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148R, H01H 3388

Patent

active

046670726

ABSTRACT:
A protrusion is formed downstream of the throat of an insulating nozzle of a gas-insulated circuit breaker of puffer type. Quenching gas, after collision with the protrusion, is blown against an arc generated between a fixed arcing contact and a moving arcing contact in the opening process of the gas-insulated circuit breaker. As a result, a pressure drop at or near the forward end (Q) of the fixed arcing contact can be prevented thereby to improve the insulation strength in the opening process.

REFERENCES:
patent: 3668352 (1972-06-01), Teijeiro
patent: 3670124 (1972-06-01), Teijeiro
patent: 3670125 (1972-06-01), Teijeiro
patent: 3816684 (1984-06-01), Teijeiro
patent: 3946183 (1976-03-01), Milianowicz
patent: 4320270 (1982-03-01), Graf et al.

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