In the induction electric motor the armature is in three fixed coils, where the rotor is a core with many conductors around it and the flow of the three-phase current generates a rotating magnetic field and it will induce the current in the conductors of the rotor. The electromagnetic reaction between the two causes the rotor to rotate Electric motors with best price.

A simple generator without rectifier switches will produce an electric current that varies in direction as the armature rotates. Because alternating current has advantages in the transmission of electrical energy, most electric generators are of this type.

This current is called a single-phase alternating current, and when three armature coils are grouped at 120 ° angles, a three-phase current, known as a three-phase alternating current, appears. Two basic types of electric motors work with three-phase alternating current: synchronous and induction motors. In the synchronous machine, field magnets are mounted on the rotor and energized by direct current. The armature coils are divided into three parts and powered by a three-phase alternating current. The variation of the three waves in the armature generates a variable magnetic reaction and causes the field to rotate at a constant speed.