Coil insulation fault detection and early warning device of high-voltage circuit breaker and use method of coil insulation fault detection and early warning device

The invention provides a coil insulation fault detection and early warning device of a high-voltage circuit breaker and a use method, belongs to the field of circuit breakers, and solves the problems that manual measurement is time-consuming and labor-consuming, and coil position measurement is relatively inconvenient. According to the technical scheme, the device comprises a shell, a measuring assembly, a manual switching assembly, an early warning assembly and a resistance meter. The measuring assembly comprises an electric brush assembly and an automatic switching assembly. The lower ends of the two groups of electric brush assemblies are connected with the input end of the resistance meter, and the upper ends of the two groups of electric brush assemblies are respectively connected with an external opening coil and an external closing coil; the front and rear ends of the automatic switching assembly are respectively connected with the lower ends of the two brush assemblies, and the bottom of the automatic