Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1982-01-19
1984-01-17
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148R, H01N 3388
Patent
active
044265611
ABSTRACT:
An improved puffer-type compressed-gas circuit interrupter includes a stationary tubular contact and a movable contact structure operably engageable with the stationary contact when the circuit interrupter is closed. A hollow nozzle directs a blast of compressed gas into the arc established between the stationary contact and the movable contact during opening. The nozzle in the interior thereof has a neck portion of predetermined diameter for directing the blast of compressed gas into the arc. The stationary contact has venting apertures therein of predetermined size and shape with at least a portion of the venting aperture means being within a predetermined section of the stationary contact. The stationary contact section has a length measured along the axis of the stationary contact equal to about three times the inside diameter of the stationary contact.
REFERENCES:
patent: 2429311 (1947-10-01), Gay
patent: 3551623 (1970-12-01), Colclaser, Jr. et al.
patent: 3786215 (1974-01-01), Mauthe
patent: 3987262 (1976-10-01), Rostron
patent: 4139751 (1979-02-01), Rostron
patent: 4219712 (1980-08-01), Emmerich
patent: 4276456 (1981-06-01), Cromer et al.
patent: 4371766 (1983-02-01), Husar
Macon Robert S.
Westinghouse Electric Corp.
Yatsko M. S.
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