Insulation measuring device for substation maintenance operation

The utility model relates to an insulation measuring device for substation maintenance operation. The measuring device comprises an instrument body with a Bluetooth data transmission function. A laser emitting lens and a laser receiving lens are arranged at the top end of the instrument body; an instrument display screen for displaying measured values is arranged on the surface of the instrument body; a rechargeable power supply is arranged in the instrument body; one side of the instrument body is provided with a Type-C charging interface for charging a power supply; the instrument body is also provided with a measurement key used for controlling a device switch and laser emission on one side of the Type-C charging interface; the other side of the instrument body is provided with a folding ruler for measuring short and ultra-short distances in a combined manner; the folding ruler is hidden and folded on the side face of the instrument body through a rotating structure. Compared with the prior art, the utilit