Home Technology Three Phase Electric Synchronous Motor Workin Principle 3D Animation

Three Phase Electric Synchronous Motor Workin Principle 3D Animation

A synchronous electric motor is an AC motor in which, at steady state, the rotation of the shaft is synchronized with the frequency of the supply current; the rotation period is exactly equal to an integral number of AC cycles.

source/image(PrtSc): learnchannel

When three-phase electric conductors are placed in certain geometrical positions,an electrical field is generated. The rotating magnetic field rotates at a certain speed known as the synchronous speed. Wath the video from learnchannel for more info:

This motor runs at a constant speed from no load to full load in synchronism with line frequency.Synchronous motors contain multiphase AC electromagnets on the stator of the motor that create a magnetic field which rotates in time with the oscillations of the line current.

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The rotor with permanent magnets or electromagnets turns in step with the stator field at the same rate and as a result, provides the second synchronized rotating magnet field of any AC motor. A synchronous motor is termed doubly fed if it is supplied with independently excited multiphase AC electromagnets on both the rotor and stator./wikipedia