| 摘要 |
PROBLEM TO BE SOLVED: To prevent earthquake from causing a relative displacement between a fixed contact and a movable contact in a route closing state of a disconnector, and keep a stable contact state. SOLUTION: A movable-side auxiliary contact 30 is mounted to the tip of a movable contact 2. The movable-side auxiliary contact 30 is formed in a bar shape, and a stopper portion 13 vertically projecting than a fixed-side auxiliary contact 6 is formed at its tip. The stopper portion 13 substantially abuts to the outer side surface of the fixed-side auxiliary contact 6. Even when fixed contacts 3 and the movable probe 2 intend to relatively shift in parallel with a base due to an earthquake in a route closing state, the fixed contacts supported by the top of a fixed insulator 21 are faced to each other on both sides of the base 20. Therefore, the stopper 13 of the movable-side auxiliary contact 30 abuts to the outer side surface of the fixed-side auxiliary contact 6, and therefore the relative displacement between the fixed contact 3 and the movable contact 2 does not occur to keep a stable contact state.
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