Motor energy efficiency thermal resistance measuring and recording device

The utility model discloses a motor energy efficiency thermal resistance measuring and recording device, and relates to the technical field of motor energy efficiency measurement, in particular to a motor energy efficiency thermal resistance measuring and recording device. Comprising a three-pole double-throw switch, a circuit switch, a first contactor, a second contactor, a first time relay, a digital display timer, an undervoltage relay, a second time relay, a third time relay, a tested motor, a bleeder resistor and a microohmmeter, and the circuit switch is electrically connected with the first contactor. According to the motor energy efficiency thermal resistance measuring and recording device, automatic power off and automatic measurement can be achieved by pressing down a circuit switch, playback and reading can be achieved after video recording is matched, the reading time is accurate to 0.1 second, the problems that time and labor are wasted in manual operation in the past, operation errors are prone