Single-Phase Induction Motors
The single-phase electric motor operates under the same principle as the polyphase engine, except that the rotating magnetic field effect Single Phase Induction Motor china produced by the stator will not exist until running rpm is reached. Since no starting torque is available, a design system is included to start the motor. They are the various designations:

Torque-Speed Curves of Different Single-Phase Induction Motors

Shaded-pole: Have only 1 main winding and no begin winding. This configuration causes a change of the applied magnetic field in romantic relationship to the rotor, creating stating torque. Applications consist of fans and small appliances.

Split-Phase (induction start engine)
Has two pieces of stator windings. The “start” windings are positioned 90 degrees to the “run” windings and change the magnetic field of the stator, inducing beginning torque. Applications include small grinders, small enthusiasts, and blowers.

Capacitor-Start
The most typical single-phase motor used in industrial applications. It really is a modified split-stage electric motor with a capacitor in series with the start winding to supply a start boost. Application include small conveyors, huge blowers, pumps, and direct-drives.

Permanent-Split-Capacitor (PSC)
Uses identical main and auxiliary windings with a capacitor to provide starting torque. They will be the most reliable single-phase motor because no centrifugal beginning switch is required. Applications include followers and pumps in HVAC and refrigeration industries.