Difference between Synchronous and Induction Motor


Main difference - Induction motor vs synchronous motor

Induction motors and synchronous motors are two different types of AC motors. They both contain a stator that creates a rotating magnetic field and a rotor that spins in response. The main difference between induction motor and synchronous motor is that in synchronous motors the rotors rotate at the same speed that the magnetic field rotates, while the rotors of induction motors rotate at a lower speed than the magnetic field turning.

What is a synchronous motor

A synchronous motor consists of a stator (non-moving part) comprising windings supplied by a three-phase AC power supply.

 The windings are connected to the power supply so that when the alternating phase currents change, a rotating magnetic field is formed around the stator. 

the rotor (the rotating part) of the synchronous motor is supplied with direct current so as to form an electromagnet whose magnetic field does not change over time. 

When the motor is running, the magnetic field of the rotor interacts with the rotating magnetic field of the stator and the rotor itself is rotating, so that its magnetic poles are "locked" with an attractive magnetic pole in the stator.


No comments