The work principles of induction motor

1.The work principle of induction motor- - Introduction

Induction motors, also called induction motor, the motor is an AC rotating, and the rotation of the rotor rotating torque obtained at the rotating magnetic 

field. It has a simple structure, easy maintenance, lower cost, higher efficiency, better operating characteristics and other characteristics of people's 

daily life, the most widely used motors, used for a variety of mechanical equipment, household appliances to power, such as machine tools, fans, pumps, 

mining machinery, electric fans, refrigerators, washing machines and so on and so forth.

2. The work principle of induction motor - - Categories

The motor can be divided into DC motors and AC motors, induction motor is mainly about today we exchange a motor. The AC motor according to different 

classifications have different classification results, according to the number of phases of the stator can be divided into single-phase induction motors, 

duplex induction motor and three-phase induction motor, the rotor structure can be divided according to the first division Rao and squirrel cage induction 

motor induction motor.

3. The work principle of induction motor - - Structure

Induction motor consists of a stator, a rotor and other accessories.

The stator is the stationary part including a stator core, the stator windings and frame. Wherein the stator core is part of the motor magnetic circuit for 

placing the stator winding, including half-closed-slot, half-open and open-slot-slot three; the stator windings are part of the motor circuit, after pass 

into the alternating current used to produce rotating magnetic field, and complete the insulation, phase insulation, insulation insulation between turns 

three projects; base generally used for fixing the stator core and the front cover so as to achieve the purpose of supporting the rotor, and to play a 

protective and cooling effect.

The rotor is the rotating part, comprising a rotor core and rotor windings. Wherein the rotor core with the stator core, is part of the motor magnetic 

circuit, for placing the rotor windings; and the rotor windings for cutting a rotating magnetic field generated by the stator windings, the induced 

electromotive force and the current form of electromagnetic torque so that the motor rotates, Depending on the rotor windings can be divided into the 

squirrel-cage induction motor and wound.

4. The work principle of induction motor

We have to explain the three-phase induction motor induction motor works. In the three-phase induction motor, once the access phase AC, three phase stator 

winding currents flowing through the three-phase MMF and generates a rotating magnetic field, cutting the rotating magnetic field of the rotor winding 

induced electromotive force and induced current, electromagnetic torque and form such that rotation of the motor.