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Basic Construction of AC Motor

By Cayla | Published on Nov 02,2015
697

AC motors are divided into two types, asynchronous motors and synchronous motors. According to different stator phase, asynchronous motor is divided into single phase asynchronous motors, two-phase asynchronous motors and three-phase asynchronous motors.

Take three-phase asynchronous motor for example. Construction of AC motor is also divided into two parts: the stator and the rotor.

1. Stator

The stator is a fixed part of the AC motor for generating a rotating magnetic field. It mainly consists of the stator core, the stator windings and base.

2. Rotor

The rotor is the main part, there are two rotors, squirrel cage and wound. Master their own characteristics and differences. Squirrel-cage motors are suitable for small power (100K or less), and its structure is simple, working is reliable, and maintenance is very easy.

Wound improves startup performance and adjusts the size of the speed. The gap between the stator and the rotor, it will affect the performance of the motor, the air gap thickness is generally between 0.2-1.5mm.

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