Insulation detection and automatic dehumidification system for high-voltage motor

The invention discloses an insulation detection and automatic dehumidification system for a high-voltage motor. The system comprises a high-voltage vacuum circuit breaker and a high-voltage zero-sequence current transformer, a PLC, a heating controller and an insulation detector, wherein a lower handcart, a high-voltage motor overvoltage resistance-capacitance absorber, an electrified sensor and agrounding knife are connected in parallel between the high-voltage vacuum circuit breaker and the high-voltage zero-sequence current transformer, the lower handcart is electrically connected with a CMO1 through the heating controller and the insulation detector, the CMO1 is electrically connected with the PLC, and the PLC is electrically connected with the chassis controller, the HMI and the upper computer. The system overcomes defects of poor working reliability, easy careless omission and the like of manual insulation detection, major accident hidden troubles caused by insulation reductionof the motor in a humid en