Working principle of induction motor

Through the relative motion between the rotating magnetic field generated by the stator (whose rotating speed is synchronous speed n 1) and the rotor winding, the rotor winding cuts the magnetic induction line to generate induced electromotive force, thus generating induced current in the rotor winding. The induced current in the rotor winding interacts with the magnetic field to generate electromagnetic torque and make the rotor rotate. As the rotor speed gradually approaches the synchronous speed, the induced current gradually decreases, and the generated electromagnetic torque also decreases accordingly. When the asynchronous motor works in the motor state, the rotor speed is less than the synchronous speed. In order to describe the difference between rotor speed n and synchronous speed n 1, slip rate is introduced.

Million car purchase subsidy