A motor detector is a device specifically designed to test the performance of a motor. By using a motor detector, comprehensive tests can be conducted on various performance of the motor, such as resistance, insulation, no-load, load, speed, etc., in order to judge and evaluate the normal working condition of the motor. Before using the motor tester, a series of preparatory work needs to be carried out, such as cleaning the surface of the motor, checking the wiring, and preparing testing equipment. The following will provide a detailed introduction to the operation process of the motor detector, in order to better understand the usage methods of the motor detector.