| 摘要 |
PROBLEM TO BE SOLVED: To provide a breaker over which insulation gas of sufficient pressure can be sprayed timely even though a structure is simplified.SOLUTION: An arc contactor, a movable arc contactor arranged oppositely to the arc contactor to be opened or closed to the arc contactor, an arc generation space located between the arc connector and the movable arc contactor when opened, a puffer chamber for housing insulation gas to be jetted to the arc generation space when closed, and a rotation fan arranged in a flow channel for communication between the arc generation space and the puffer chamber to change a rotation direction in accordance with the direction of the insulation gas flowing in the flow channel are provided. |
