Leakage protection circuit, device and method
The invention relates to an electric leakage protection circuit, device and method. The circuit comprises a current collection unit, a controller, an alarm unit and a protection unit, and the current collection unit is used for carrying out the magnetoelectric induction with the current of power equ...
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| Hauptverfasser: | , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention relates to an electric leakage protection circuit, device and method. The circuit comprises a current collection unit, a controller, an alarm unit and a protection unit, and the current collection unit is used for carrying out the magnetoelectric induction with the current of power equipment, and generating the sampling current data of the power equipment; the controller is connected with the current acquisition unit and is used for acquiring current data of the power equipment according to the sampling current data and judging whether the amplitude of the current data is within a preset current threshold range or not; and if not, generating an alarm control signal and a protection control signal. The alarm unit is connected with the controller and is used for executing a preset alarm action according to the alarm control signal; and the protection unit is connected with the controller and the power equipment, and is used for executing a preset protection action on the power equipment according |
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