Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1976-05-11
1978-05-09
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
H01H 3366
Patent
active
040888606
ABSTRACT:
A vacuum interrupter including an insulating cylindrical body, a pair of opposed separable stationary and movable electrodes respectively secured to respective stationary and movable holders, a bellows positioned between the movable holder and the insulating cylindrical body for permitting the movable electrode to be separated from the stationary electrode. An intermediate metal shield is positioned between the insulating cylindrical body and the electrodes with a first cylindrical metal shield and an end-plate cylindrical metal shield opposed to the intermediate metal shield being positioned at the stationary holder side, and a movable shield having a diameter greater than that of the intermediate metal shield and opposed to the bellows being positioned at the movable holder side, whereby the inner surface of the insulating cylindrical body as well as the bellows are protected from metal particles produced at the time of interrupting a current.
REFERENCES:
patent: 3189715 (1965-06-01), Jennings
patent: 3231704 (1966-01-01), Jacobs
patent: 3355564 (1967-11-01), Ranheim
patent: 3792214 (1974-02-01), Voshall
patent: 3889080 (1975-06-01), Emmerich et al.
patent: 3903386 (1975-09-01), Yanagisawa
Abe Nobuo
Sugawara Hiroyuki
Hitachi , Ltd.
Macon Robert S.
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