Gas-blast circuit-interrupter with multiple insulating arc-shiel

Details Gas-blast circuit-interrupter with multiple insulating arc-shiel Gas-blast circuit-interrupter with multiple insulating arc-shiel

1977-07-29

1981-09-15

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200150G, H01H 3388

Patent

active

042899427

ABSTRACT:
A gas-blast circuit-interrupter of the "puffer" -type has a pair of separable contacts, at least one of which is movable, and a movable multiple insulating arc-shield assembly, or multiple hollow nozzle assembly, is movable during the opening operation with said movable contact, and initially delays the radial inward ejection of compressed gas from the piston chamber into the arcing region, until an adequate time has elapsed for sufficient arc lengthening to take place for circuit interruption.

REFERENCES:
patent: 3291948 (1966-12-01), Telford
patent: 3582589 (1971-06-01), Frink
patent: 3659065 (1972-04-01), Roidt et al.
patent: 3708639 (1973-01-01), Vigreux et al.
patent: 3906180 (1975-09-01), Glarner

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