The part embedded in the core groove is called the effective side, other part on both end is called terminal part, it can definite that the effective side of the coil is involved in cutting the main magnetic field, that is an effective part, meanwhile the coil only acts as an effective side when connecting the outer portion of the groove.

The coil is made of a multi-turn wire, this is a multi-turn coil. The left part in figure 2 shows one coil on a core. The motor winding motor consists of a plurality of coils, and the representation of the coils in the expansion drawing is illustrated in figure 2. While the circumferentially arranged coil is difficult to view and analyze, as describing the arrangement and connection of a motor winding, it is usually represented by an expansion drawing, that is mean the core of the cylindrical surface is unfolded into a plane, and the windings distributed in the core slot are also expanded, it can be much more intuitive. The principle of three-phase AC generator is introduced in this column 'Three-phase AC generator principle model”, and the characteristics of three-phase alternating current are introduced in the motor column, 'Rotating magnetic field generated by three-phase AC motor”, the model there uses a single-turn wire to represent winding, there is a little difference from the actual application In this course, we introduce the basic structure of the actual AC motor winding.įigure 1 is a stator core of an AC motor, which is formed by stacking a plurality of stamped silicon steel sheets, and teeth and grooves are evenly distributed on the inner circumference of the core, and the stator winding are embedded in the slots. Obviously the winding is the main component of the energy conversion and the most important component, the core of both stator and rotor is just used to reduce magnetic force and increase the magnetic path of magnetic flux.ĪC motors mainly have single-phase motors and multi-phase motors, and three-phase motor is mainly multi-phase motor.

AC Motor Winding | Generator Series Courseware | Pengkyįor the generator, the winding is the component that generates the electromotive force, for the motor, the winding is the component that generates the mechanical force.

Motor winding diagram