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    • 1. 发明公开
    • 차단기
    • 电路断路器
    • KR1020080005870A
    • 2008-01-15
    • KR1020070068710
    • 2007-07-09
    • 가부시키가이샤 히타치세이사쿠쇼
    • 모리타아유무오우치시게토시호소다미노루
    • H01H71/52H01H33/66H05K3/20
    • A circuit breaker is provided to decrease a size of a manipulation unit for a vacuum valve by reducing a bounce of an axis on a movable electrode using a simple structure. A circuit breaker includes a vacuum valve(51), a manipulation unit, and opening units(170,171). The manipulation unit maintains a closed condition of the vacuum valve using an attractive force from a permanent magnet(306). The opening units move a manipulation axis(65) of the manipulation unit to an open direction by using an electrical repelling force. A release device(900) releases a closed station of the vacuum valve due to the manipulation unit between the opening units and the manipulation unit in response to the opening process of the opening units.
    • 提供一种断路器以通过使用简单的结构减少可动电极上的轴的反弹来减小真空阀的操作单元的尺寸。 断路器包括真空阀(51),操纵单元和开启单元(170,171)。 操作单元使用来自永磁体(306)的吸引力维持真空阀的关闭状态。 打开单元通过使用电驱动力将操作单元的操纵轴(65)移动到打开方向。 响应于打开单元的打开过程,释放装置(900)由于打开单元和操纵单元之间的操纵单元而释放真空阀的封闭站。