Hitachi, Ltd.

Takeshi Iryo

Hideo Kawamoto

Junzo Kida

Wataru Tamura

Takuichiro Soga

Gas circuit breaker

In order to provide a good gas-insulated circuit breaker which is compact and easy in assembling and preparation, a gas-insulated circuit breaker is constructed with a grounded enclosure enclosed a insulation nature gas, a current interruption part having a fixed contactor arranged in the grounded enclosure and a movable contactor to be contacted with and to be separated from the fixed contactor and an operating mechanism to output a driving force to drive the movable contactor wherein a grounded enclosure side main rotating shaft connected to the movable contactor through a connection member and a main output shaft for outputting a rotating force to actuate the movable contactor through the grounded enclosure side main rotating shaft provided on the operating mechanism are arranged on a coax so as to be coupled with a gear coupling and the operating mechanism is arranged almost under the grounded enclosure

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Kashiwa, Japan

Takeshi Iryo