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    • 84. 发明申请
    • ELECTRIC CIRCUIT BREAKER CAPABLE OF CIRCUIT-BREAKING WHEN DETECTING ARC AND OVER-LOAD
    • 检测电弧和过载电路时可断电的电路断路器
    • US20150138684A1
    • 2015-05-21
    • US14402690
    • 2013-05-24
    • Tae Young ChungDea Sang Kim
    • Tae Young ChungDea Sang Kim
    • H02H3/08H02H3/02H02H1/00H02H3/093
    • H02H1/0015H02H3/093
    • Disclosed is a power off device which includes a micro arc detector for turning on a first switching element, based on a voltage induced in a high frequency choke coil by a high frequency pulse current caused by micro arc at a power line, a high current arc detector for outputting a high current arc detection current during turning-on of a second switching element made based on variation of a magnetic field generated at a coil, a delay unit for accumulatively charging the micro arc detection current or the high current arc detection current in a delay capacitor at a predetermined time constant, a power off unit for electrically disconnecting a load from the power line when an operating voltage is applied, and a first switch for connecting the operating voltage to the power off unit in response to the arc detection signal.
    • 公开了一种断电装置,其包括微电弧检测器,用于基于在高频扼流线圈中感应的电压,通过由电弧上的微弧引起的高频脉冲电流来接通第一开关元件,高电流电弧 检测器,用于在基于线圈产生的磁场的变化产生的第二开关元件的导通期间输出高电流电弧检测电流,用于对微弧检测电流或高电流电弧检测电流进行累积充电的延迟单元 延迟电容器,预定时间常数的延迟电容器;用于在施加工作电压时将负载与所述电力线电气断开的断电单元,以及响应于所述电弧检测信号将所述工作电压连接到所述断电单元的第一开关 。