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电子脱扣器是用电子元件构成的电路,检测主电路电流,放大、推动的配漏电保护器。 当线路有漏电或人身触电时通过零序电流互感器的电流的矢量和不等于零,互感器二次线圈的二侧产生电压,并经集成电路放大,当达到整定值时,通过漏电脱扣器在0.1秒内切断电源,从而起到触电和漏电保护作用。脱扣器是与断路器机械上相连的,用以释放保持机构并使断路器自动断开的装置。其作用是当线路有漏电或人身触电时通过零序电流互感器的电流的矢量和不等于零,互感器二次线圈的二侧产生电压,并经集成电路放大,当达到整定值时,通过漏电脱扣器在0.1秒内切断电源,从而起到触电和漏电保护作用。