chain sprocket Single-Phase Induction Motors
The single-phase electric motor operates beneath the same principle as the polyphase electric motor, except that the rotating magnetic field effect produced by the stator does not exist until running rpm is reached. Since no beginning torque is obtainable, a design system is included to begin 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 shift 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 electric motor)
Has two models of stator windings. The “start” windings sit 90 degrees to the “run” windings and shift the magnetic field of the stator, inducing beginning torque. Applications include little grinders, small enthusiasts, and blowers.
The most typical single-phase motor used in industrial applications. It is a altered split-phase engine with a capacitor in series with the start winding to provide a start boost. App include small conveyors, large blowers, pumps, and direct-drives.
Uses identical primary and auxiliary windings with a capacitor to supply starting torque. They will be the most reliable single-phase motor because no centrifugal beginning switch is required. Applications include fans and pumps in HVAC and refrigeration industries.