Was there any current imbalance in the three-phase induction motor during the test? In order to prevent unqualified products from leaving the factory, DC resistance is generally measured after winding wiring, and three-phase no-load current balance test is carried out during the inspection test.

       Three phase asynchronous motor space difference120°The electric Angle of the three-phase symmetrical stator windings is applied and the time on the mutual difference is applied120°The three-phase symmetrical AC voltage of phase Angle can produce a circular rotating magnetic field with constant amplitude and constant angular velocity, and realize the function of electromechanical energy conversion.

       Number of winding turns, wire diameter, pitch, number of parallel paths (or number of parallel wires))And connection has a decisive effect on the performance of the motor. If the three-phase winding is asymmetrical, or the power supply voltage is asymmetrical, an elliptical rotating magnetic field will be generated, and its instantaneous amplitude and angular velocity are in an alternating state, that is, when the amplitude is large, the angular velocity is low, and the amplitude is high.

       In the actual inspection and test process, the inspection and analysis of uneven resistance and current are very important, and the inspection of uneven resistance is more inclined to the welding reliability of the winding, because most manufacturers carry out the turn inspection before wiring, especially for the automatic winding and wiring process, the possibility of turn errors is very small. The current balance detection will find the problem that the resistance detection is not easy to find.

       Mori machine,20Focus 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.