| 摘要 |
PURPOSE: A gas circuit breaker is provided, which is capable of improving the braking performance and the insulating performance and tolerable of a stress acting on the supporting member of the electrode. CONSTITUTION: A gas circuit breaker includes a tank(1) filled with an insulation medium, a movable electrode(20) arranged inside the tank(1), a fixed electrode(10) which is supported through an insulator supporting member inside the tank(1) and disposed detachably from and oppositely to the movable electrode(20), and electric conductive parts(2,3) individually provided in the movable electrode and the fixed electrode, wherein the insulator supporting member supports the fixed electrode in an upper side of a central axis of the tank.
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