High-voltage motor winding grounding fault searching device and use method

The invention relates to a high-voltage motor winding ground fault searching device and a using method, the high-voltage motor winding ground fault searching device comprises a base, a megohmmeter, a pressing assembly and an infrared imager are arranged on the base, the pressing assembly comprises a fixed seat, a driving gear and a spur rack, the driving gear is rotatably arranged in the fixed seat and is meshed with the spur rack, and the infrared imager is arranged in the fixed seat. A transmission shaft extending upwards is arranged in the driving gear, the bottom end of the supporting rod is in sliding connection with the base, and the spur rack abuts against the supporting rod and is used for abutting two testing pens of the megohmmeter against the stator winding. The driving gear drives the straight gear to abut against the supporting rod, the supporting rod drives the test pen to abut against two detection points of the stator winding needing to be detected, a megohmmeter is continuously led into the c