Combined residual voltage detection protection device

The invention relates to the field of power line protection, in particular to a combined residual voltage detection protection device which comprises a residual voltage detection circuit, a voltage and current analog quantity acquisition circuit, a key module, a power module, a microprocessor module...

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1. Verfasser: DAI DONGPING
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to the field of power line protection, in particular to a combined residual voltage detection protection device which comprises a residual voltage detection circuit, a voltage and current analog quantity acquisition circuit, a key module, a power module, a microprocessor module, a display screen module, a network communication interface module, a storage module, a remote signaling input interface and a control output interface. The residual voltage detection circuit is connected with the microprocessor module I/O, a control output interface is connected with a processor output port, and the voltage and current sensor analog quantity acquisition circuit is connected with the microprocessor module AD circuit; the output end of the key module is connected with the input end I/O of the microprocessor module; the output end of the power module is connected with a corresponding power port of the microprocessor module; the input end of the display screen module is connected with the output end