| 摘要 |
<p>The present invention provides a circuit breaker of a gas insulated switchgear which includes a conductor part of a movable part side, a conductor part of a fixed part side, and a movable rod part which moves between the conductor part of the movable part side and the conductor part of the fixed part side and switches an input state and a blocked state. The conductor part of the fixed part side includes a main contact point of a fixed part and a fixed arc contact point. The conductor part of the movable part side includes a finger contact part of a movable part which is connected to the main contact point of the fixed part and a movable arc contact point which is connected to the arc contact point of the fixed part. The movable arc contact point is separated from the fixed arc contact point after the finger contact of the movable part is separated from the main contact of the fixed part according to the movement of the movable part in a blocking operation. The arcing contact of the movable part has a shield part to prevent arc and ablation due to thermal gas by the arc on a part corresponding to an arc generation region.</p> |
