Puffer-type compressed gas circuit interrupter

Details Puffer-type compressed gas circuit interrupter Puffer-type compressed gas circuit interrupter

1983-03-18

1984-10-02

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200148R, H01H 3388

Patent

active

044750196

ABSTRACT:
According to this invention, therein is provided a puffer-type compressed gas circuit interrupter comprising stationary and movable contacts and a stationary cylinder, a movable piston, connected to the movable contacts and which slides in the stationary cylinder to compress the sulfur hexafluoride insulating gas therebetween to provide a puffing action to extinguish the arc drawn between the separating stationary and movable contacts. The puffer apparatus is disposed within an insulating tube which has a plurality of openings therein disposed about the stationary contact. The tube, with the puffer apparatus disposed therein, is disposed within an outer metallic housing in which an insulating barrier is further disposed between the insulating tube and the housing. The insulating barrier, which lines the inside of the outer housing, is disposed adjacent to the apertures in the insulating tube so as to prevent a dynamic insulation breakdown to ground.

REFERENCES:
patent: 4105880 (1978-08-01), Rapp et al.
patent: 4149051 (1979-04-01), Milianowicz et al.
patent: 4276456 (1981-06-01), Cromer et al.
patent: 4434334 (1984-02-01), Tragesser

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