Three Phase Electric Motor

Three-phase motors are powered by the electrical voltage and current that is generated as three-phase input power and is then used to produce mechanical energy in the form of a rotating motor shaft.

Three-phase motors are widely used in industry and have become the workhorse of many mechanical and electromechanical systems because of their relative simplicity, proven reliability, and long service life. Three-phase motors are one example of a type of induction motor, also known as an asynchronous motor, that operates using the principles of electromagnetic induction. 

While there are also single-phase induction motors available, those types of induction motors are used less frequently in industrial applications but are widely used in domestic applications such as vacuum cleaners, refrigerator compressors, and air conditioners, owing to the use of single-phase AC power in homes and offices.

How does a three-phase motor work?

A 3 phase induction motor derives its name from the fact that the rotor current is induced by the magnetic field, instead of electrical connections.

Production of a rotating magnetic field

The stator of an induction motor consists of a number of overlapping windings offset by an electrical angle of 120°. When the primary winding or stator is connected to a 3-phase A.C. supply, it establishes a rotating magnetic field that rotates at a synchronous speed.

Hot Tags: three phase electric motor, China, suppliers, manufacturers, factory, wholesale, price