Circuit breaker for hierarchically controlling short-circuit current and trips

    公开(公告)号:US09633811B2

    公开(公告)日:2017-04-25

    申请号:US15233949

    申请日:2016-08-10

    摘要: The invention discloses a short circuit current hierarchical control tripping parameter circuit breaker. According to the invention, resistance of an alloy magnetic resistance body is changed through circuit current, and contract control can be carried out on short-circuit current. The control range of the circuit breaker can achieve that no magnetic resistance will be generated when current is no more than 8 times of rated operational current, and current limiting may be realized by the magnetic resistance when current is 8 times more than rated value. In this way, hierarchical control on short-circuit current of different levels of circuits can be carried out, and short-circuit current can be limited in a predetermined range, thereby restricting the short-circuit current in a predetermined range, solving a problem of power supply flickering, and avoiding large-area power failure accidents caused by override trip existing in an electrical control switch.

    Circuit Breaker for hierarchically controlling short-circuit current and trips
    2.
    发明申请
    Circuit Breaker for hierarchically controlling short-circuit current and trips 有权
    用于分级控制短路电流和跳闸的断路器

    公开(公告)号:US20170047183A1

    公开(公告)日:2017-02-16

    申请号:US15233949

    申请日:2016-08-10

    IPC分类号: H01H55/00 H01H33/66 H01H33/65

    摘要: The invention discloses a short circuit current hierarchical control tripping parameter circuit breaker. According to the invention, resistance of an alloy magnetic resistance body is changed through circuit current, and contract control can be carried out on short-circuit current. The control range of the circuit breaker can achieve that no magnetic resistance will be generated when current is no more than 8 times of rated operational current, and current limiting may be realized by the magnetic resistance when current is 8 times more than rated value. In this way, hierarchical control on short-circuit current of different levels of circuits can be carried out, and short-circuit current can be limited in a predetermined range, thereby restricting the short-circuit current in a predetermined range, solving a problem of power supply flickering, and avoiding large-area power failure accidents caused by override trip existing in an electrical control switch.

    摘要翻译: 本发明公开了一种短路电流分级控制跳闸参数断路器。 根据本发明,通过电路电流来改变合金磁阻体的电阻,并且可以在短路电流上进行合同控制。 断路器的控制范围可以实现当电流不超过额定工作电流的8倍时不会产生磁阻,并且当电流是额定值的8倍时,可以通过磁阻实现限流。 以这种方式,可以执行对不同电平电路的短路电流的分级控制,并且可以将短路电流限制在预定范围内,从而将短路电流限制在预定范围内,解决了 电源闪烁,避免电气控制开关中存在超驰跳闸引起的大面积电源故障事故。