Liquid interrupter module

Details Liquid interrupter module Liquid interrupter module

1978-06-09

1981-06-16

Scott, James R.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148A, 200148E, 200150G, H01H 3382

Patent

active

042739780

ABSTRACT:
The invention provides a current interrupter employing a liquified dielectric medium such as sulfur hexafluoride to effect rapid arc extinction. A pump cylinder forces the dielectric liquid into the vicinity of a fixed contact. The pump cylinder is refilled from within the contact enclosure after each current interruption to allow for repeated operations. Check valves are provided for preventing any dielectric gas from entering the pump cylinder. The interrupter system further includes a pressure absorbing accumulator for smoothing pressure changes and a cooler for removing heat from the dielectric medium.

REFERENCES:
patent: 3099724 (1963-07-01), Silliman et al.
patent: 3110791 (1963-11-01), Aspey et al.
patent: 3150245 (1964-09-01), Leeds et al.
patent: 3180959 (1965-04-01), MacNeill et al.
patent: 3214541 (1965-10-01), Baker et al.
patent: 3257533 (1966-06-01), Leeds
patent: 3259724 (1966-07-01), Aspey et al.
patent: 3291949 (1966-12-01), Cromer
patent: 3406269 (1968-10-01), Fischer
patent: 3531609 (1970-09-01), Gratzmuller
patent: 3569651 (1971-03-01), Gratzmuller
patent: 3842227 (1974-10-01), Gratzmuller
patent: 3988554 (1976-10-01), Graf et al.
patent: 4034175 (1977-07-01), Gratzmuller

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