Wednesday 8 August 2018

Construction and working of ac motor

An AC motor is an electric motor driven by an alternating current (AC). Almost of the mechanical power used by industries is provided by three phase induction motors because of its simple and rugged construction , low cost, good. An easy-to-understand explanation of how real-life, AC electric motors work using electromagnetic induction.


Three-phase AC induction motors are commonly used in industrial applications.


This type of motor has three main parts, rotor, stator, and enclosure.

The stator and rotor do the work , and the enclosure protects the stator and rotor.

From tiny hysteresis motors that drive electric clocks to huge synchronous motors that develop more than 50hp, the alternating current ( AC ) motor has become an indispensable part of everyday life.

Countless AC motor designs have come and gone over the years, but the principles of operation are common to all. The synchronous electrical generator (also called alternator) belongs to the family of electric rotating machines. Induction Motors are the most commonly used motors in most of the applications. An alternator or AC generator is an electrical machine which converts mechanical energy into alternating electric energy.


They are also known as synchronous generators.


Squirrel cage induction motor and 2. Phase Wound induction motor (slip-ring induction motor ). Both types have similar constructed rotor, but they differ in construction of rotor. Synchronous motor and induction motor are the most widely used types of AC motor. AQqyGNOP_3o Help us to make future videos for you. An induction motor can therefore be made without electrical connections to the rotor.


For industrial and mining applications, 3-phase AC induction motors are the prime movers for the vast majority of machines.


Three phase Induction motor construction and working 3d animation video. Dragonfly Education is an education company, that is building proprietary education content for higher learning in technical streams. Why single phase motor is not self starting? To achieve rotation, there has to be some interaction between magnetic flux produced by electromagnetism within the motor.


This induction motor requires only one power phase for their proper operation.


Simple construction , cheap cost, better reliability, eases to repair and better maintenance are some of its markable advantages. The rotor slots are usually not parallel to the shaft but are skewed. The skewing of the rotor conductors has the following advantages given below.


It reduces humming and provide smooth and noise free operation.

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