How does the RCD leakage protector work?
1) All power lines pass through the residual current transformer (commonly known as zero-sequence current transformer), and the vector sum of their currents is zero;
2) All power lines pass through the residual current transformer (commonly known as zero-sequence current transformer), and the vector sum of the currents is zero. When the leakage occurs, the vector sum of the currents is equal to the leakage current;
3) The leakage current of the leakage protector is very small, and the leakage current of several tens of milliamperes to several hundred milliamperes will trip!
4) If the leakage current is large and there is no trip when the leakage occurs, the secondary coil of the residual current detecting mechanism and its circuit will burn out!
RCD leakage protector installation points
1) The leakage protector can be installed between the power supply and the load, and the load leakage test will protect it;
2) The leakage protector can be installed between the power supply and the load, the load leakage test will protect, the protection cuts off the phase line, and the neutral line N is not cut off;
3) The leakage protector can be installed between the power supply and the load. The load leakage test will protect it. The protection cuts off the phase line. The neutral line N is not cut off, so the N line of the load side of the leakage protector must not be connected repeatedly.
4) The leakage protector can be installed between the power supply and the load. The load leakage test will protect it. The protection cuts off the phase line. The neutral line N is not cut off. Therefore, the N line of the load side of the leakage protector must not be connected repeatedly. If there is any repetition Grounding, the N line has a repeated ground current without closing, and it will burn out the detection mechanism of the leakage protector.
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