Leakage protector circuit for electric water heater
A technology for leakage protection and electric water heaters, which is applied in emergency protection circuit devices, circuit devices, emergency protection devices for automatic disconnection, etc., and can solve problems such as failure to protect, death, and human injury
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[0015] Example: see image 3 , A leakage protection circuit for electric water heaters, composed of power polarity detection circuit A, power polarity conversion circuit B, polarity conversion self-locking circuit C, leakage protection relay D, leakage detection comparison circuit H, and leakage protection execution circuit F , The mains power is input by the phase line L and the neutral line N of the power polarity detection circuit A, and then output to the electric water heater G through the power polarity conversion circuit B. Leakage protection is set between the power polarity conversion circuit B and the electric water heater G Relay D, polarity conversion self-locking circuit C is connected between power polarity detection circuit A and power polarity conversion circuit B, the input terminal of leakage detection and comparison circuit H is connected to the neutral line N and ground line E, and the signal line of the output terminal is connected to The input end of the leak...
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