Intelligent phase-detecting amplitude-detecting leak comprehensive protector with self diagnostic function
A comprehensive protector and self-diagnosis technology, applied in the direction of automatic disconnection of emergency protection devices, emergency protection circuit devices, electrical components, etc., can solve the problem of inability to achieve regular leakage protection, without trip coil leakage signal amplification circuit self-diagnosis functions, etc.
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[0009] The present invention will be described below in conjunction with the embodiments and the drawings.
[0010] See figure 1 with figure 2 , An intelligent phase and amplitude and leakage protection device with self-diagnosis function, which includes air circuit breaker, opening and closing operating mechanism, zero sequence transformer LH, single-chip microcomputer U2, leakage simulation circuit, voltage detection circuit, power supply unit Circuit, leakage signal amplifying circuit, leakage current display circuit, electric opening and closing control circuit, it also has standard signal generating circuit and self-diagnosis circuit, said standard signal generating circuit is connected to the input of leakage signal amplifying circuit; resistor R32 is connected to mutual inductance The standard resistor R33 is connected to the triac SCR3, the control pole of the triac SCR3 is connected to the 6 pin of the single-chip microcomputer U2 through the resistor R34, and the middle...
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