Gas circuit breaker

Details Gas circuit breaker Gas circuit breaker

H - Electricity

01

H

H01H 9/30 (2006.01) H01H 33/91 (2006.01) H02B 13/035 (2006.01)

Patent

CA 2101824

Disclosed is a gas circuit breaker comprising a grounded tank which is filled with insulation gas, a stationary contact disposed in the grounded tank for contacting and departing from a movable contact, an arc-quenching cylinder which is connected to the stationary contact to pass the insulation gas which is blown to an arc generated between the stationary contact and the movable contact, and an insulation frame which is arranged beneath the arc-quenching cylinder and fixed to an inner wall of the grounded tank in a manner to support the arc-quenching cylinder, wherein the arc- quenching cylinder has a substantially semicircular section portion wherein a flat wall part forming a dent part thereunder is arranged at a bottom of the arc- quenching cylinder, the insulation frame is disposed beneath the dent part of the substantially semicircular section portion, the arc-quenching cylinder has a cylinder portion for connecting to the stationary contact, and a mounting portion for connecting to the insulation frame, and the mounting portion is provided between the dent part and the cylinder portion.

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