Single-Phase Induction Motors
The single-phase engine operates under the same principle as the polyphase engine, except that the rotating magnetic field effect produced by the stator does not exist until running rpm is reached. Since no beginning torque is available, a design system is included to begin the motor. These are the various designations:
Torque-Speed Curves of Different Single-Phase Induction Motors
Shaded-pole: Have only one main winding and no begin winding. This configuration causes a shift of the applied magnetic field in romantic relationship to the rotor, creating stating torque. Applications include enthusiasts and small appliances.
Split-Phase (induction start electric motor)
Has two models of stator windings. The “start” windings sit 90 degrees to the “run” windings and change the magnetic field of the stator, inducing starting torque. Applications include little grinders, small enthusiasts, and blowers.
Capacitor-Start
The most typical single-phase motor found in industrial applications. It really is a modified split-stage motor with a capacitor in series with the start winding to supply a start boost. App include small Single Phase Induction Motor china 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 are the most reliable single-phase motor because no centrifugal starting switch is required. Applications include supporters and pumps in HVAC and refrigeration industries.
