Motor comprehensive protector tester

The invention relates to the motor comprehensive protector testing technology. According to the invention, an existing motor comprehensive protector cannot be normally used due to the unqualified state or the long-distance transportation turbulence condition of the existing motor comprehensive protector. Meanwhile, whether the normal usage of the existing motor comprehensive protector is enabled or not cannot be detected in time, so that the production is delayed. The invention provides a motor comprehensive protector tester. The technical scheme of the motor comprehensive protector tester canbe summarized as follows: a corresponding leakage test circuit, a corresponding overload test circuit and a corresponding phase loss test circuit are integrally arranged in the tester. As a result, whether the electric leakage condition, the overload condition and the phase loss condition of the motor comprehensive protector exist or not can be tested before the usage of the motor comprehensive protector. The fault detec