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更新时间:2026.04.19
为保险丝故障报警的阻抗变压器设计

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图1所示的电路,能够检测出高可靠通信设备电源的中小型断路器或强击穿能力保险丝的开路状态。当它们发生故障引起电磁传感器的阻抗发生变化时,这个电路就会发出一个报警信号。传统的故障检测电路都是检测开路保险丝两端的电压差,或流过装有保险丝的电路的漏电流,或者—个激励器保险丝引起的无电压辅助触点的闭合状态。

开关和保险丝

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开关和保险丝 An electric switch is often on a wall near the door of a room. Two wires lead to the lamp in the room. The switch is fixed in one of them. The switch can cause a break in this wire, and then the light goes. The switch can also join the two parts of the wire again, then we get a light. Switch can control many different things. Small switches control lamps and radio sets because th

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