All-round leakage protection plug for monitoring live detectability of ground wire
A leakage protection plug, live ground wire technology, applied in the direction of automatic disconnection of emergency protection devices, emergency protection circuit devices, circuits, etc. problems to avoid electrical accidents
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[0010] The present invention is further described in detail through the following examples.
[0011] See figure 1 As shown, an all-around leakage protection plug with the ability to monitor the ground wire charging detection capability includes an all-around leakage protection plug 7. The plug is provided with a ground wire charging detection sensor 4 through which the ground wire passes, a phase wire and a zero The zero-sequence current transformer 6 through which the line passes, the test circuit 5 set on the zero-sequence current transformer 6, the phase line contact 8, the neutral line contact 9, the ground line contact 10, and the free tripping breaker . The series circuit composed of the current-limiting resistor 1, the monitoring switch 2, the wires 3, 11 is connected between the phase line contact 8 line and the neutral line contact 9 line, and the wire 3 passes through the ground line detection sensor 4 to form a pair The monitoring circuit of the working capability of...
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