Switch cabinet comprehensive fault alarm online detection device and method for nuclear power station

The invention belongs to the technical field of low-voltage distribution fault detection, and particularly relates to a switch cabinet comprehensive fault alarm online detection device and method fora nuclear power station. The switch cabinet comprehensive fault alarm online detection device comprises a single-chip microcomputer module, a measurement module, a liquid crystal display module, an alarm module and an input module, wherein the single-chip microcomputer module is connected with the measurement module, the liquid crystal display module, the alarm module and the input module. Throughbutton operation and liquid crystal screen display, the switch cabinet comprehensive fault alarm online detection device has the advantages of convenient operation, visual display, low manufacturingcost and stable performance, utilizes an electromagnetic induction principle, adopts non-contact measurement, and does not affect the stability of a low-voltage power distribution system; the positionof the faulty drawer can be