Three-phase induction motor: After the motor is supplied with three-phase alternating current in the stator winding, a rotating magnetic field will be generated. The closed guide bar on the rotor will cut the magnetic force lines of the rotor, inducing the potential and current in the stator magnetic field and the passing conductor will be in the magnetic field and subjected to the Ampere force, which will drive the rotor to move. The horsepower of three phase induction motor is more than 1/4HP and can reach 270HP. It is divided into 2P, 4P, 6P, 8P and other poles.