Control means for electrical equipment, E.G. for a high-voltage

Details Control means for electrical equipment, E.G. for a high-voltage Control means for electrical equipment, E.G. for a high-voltage

1998-09-24

2000-05-16

Donovan, Lincoln

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Air-current blowout

218 14, 218 51, 218 60, H01H 3370

Patent

active

060640251

ABSTRACT:
A controller for electrical equipment, in particular for a high-voltage circuit-breaker, the equipment being housed in a casing filled with a dielectric gas under pressure. An interrupting chamber within the casing extinguishes arcs produced by the main circuit-breaker contacts. The equipment employs a contact connecting rod designed to be moved in translation by said controller. The controller employs an operating piston mounted to slide in a cylindrical element fixed to the casing and connected to a communication duct for communicating with the inside of the casing via an actuating valve in the engagement position. The controller further includes a suction enclosure connected to said cylindrical element and communicating with the inside thereof via a communication duct when the actuating valve is in the disengagement position. A suction piston is mounted to slide in the enclosure. In addition, a reciprocating drive mechanism drives the suction piston in a reciprocating motion.

REFERENCES:
patent: 4118613 (1978-10-01), Barkan et al.
patent: 4166937 (1979-09-01), Imam et al.
patent: 5296662 (1994-03-01), Engdahl et al.

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