Three-phase AC Motor Principle

The three-phase AC motor is a three-phase symmetrical winding of the stator (the three phases have the same number of turns, and when they are placed in space, the electrical angle is 120 degrees apart, that is, the phase difference between the motor phase and the phase winding of the two poles is 120 degrees, and the phase and phase of the four-pole motor. A difference of 60 degrees and a phase difference of 30 degrees between a 6-pole motor phase and a phase) leads to a three-phase alternating current, which generates a rotating magnetic field in the stator core. This rotating magnetic field cuts the rotor winding, induces a potential in the rotor winding, and induces an induced current. The rotor current interacts with the rotating magnetic field of the stator to generate a rotating torque that rotates the rotor.