During the operation of the motor, there are two kinds of heating phenomenon: the whole machine heating and local heating. The following Senli motor Xiaobian will take you to a simple analysis of the reasons for the heating failure of three-phase AC asynchronous motor.

        First, the heating cause of the whole machine

        1Motor overload operation, also known as overload. At this time, it can be measured whether the current of the motor exceeds the rated current.

        2The power supply voltage is too high or too low than the motor rated voltage. The difference between the power supply voltage and the rated voltage is±5%The range can operate normally.

        3,Three-phase asynchronous motorThe ambient temperature is too high, and the use temperature of the ordinary motor cannot exceed40Degree.

        4Wiring error, strictly in accordance with the nameplate connection method for wiring, if the star connection is connected to the Angle, the voltage is unchanged, the current will be three times the normal, the winding as a whole heat quickly burned.

        2. Local fever causes

        1The rotor fricts with the stator local phase during operation, so that the stator local heat, then the rotor can be extracted to check whether the rotor has a high point friction trace.

        2, the stator winding local short circuit or ground fault. At this time, the turn tester or power frequency voltage tester can be used to detect and find out the fault point.

        3A phase break during operation, check whether a power supply is broken in a phase or whether the asynchronous motor winding is broken in phase.

        Motor heating in the motor failure is a serious quality problem, if found not timely or insufficient analysis, it is easy to lead to motor winding burn, resulting in greater economic losses.

       Mori machine,19Focus on the development and production of electric motors. Available if needed1688Search factory name "Shengzhou Chaoli Electric Appliance Factory" , Or online consultation message, we will have business personnel to get in touch with you, you can also contact us directly0575-8378-1127.