High-voltage y-shaped dead tank circuit interrupter

Details High-voltage y-shaped dead tank circuit interrupter High-voltage y-shaped dead tank circuit interrupter

H - Electricity

01

H

306/228

H01H 33/53 (2006.01) H01H 33/00 (2006.01) H01H 33/88 (2006.01)

Patent

CA 1211487

ABSTRACT OF THE DISCLOSURE A gas-insulated circuit breaker is described which includes a Y-shaped hollow grounded metal tank formed from three appropriately shaped pipes joined to- gether. A hollow insulating bushing is secured to each upstanding leg. A stationary and a movable contact, separable from each other to establish an arc therebe- tween, are disposed in one of the upstanding legs, with an insulating gas disposed within both the tank and the insulating bushings. A mechanism is used for directing a blast of insulating gas into the arc established between the separating contact, and includes a piston fixedly disposed in the one leg and a puffer cylinder secured to the movable contact and movable over the piston to com- press the gas therebetween. An operating mechanism is associated with the base leg for moving the movable con- tact, and a drive rod insulatably connects the movable contact and the operating mechanism. The operating mecha- nism thus moves the movable contact through the insulating drive rod.

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