Single-Phase Induction Motors
The single-phase motor operates under the same principle as the polyphase electric motor, except that the rotating magnetic field effect generated by the stator does not exist until running rpm is reached. Since no beginning torque is obtainable, a design mechanism is included to begin the motor. They are the various designations:
Single Phase Induction Motor china Torque-Speed Curves of Different Single-Phase Induction Motors
Shaded-pole: Have only one main winding no begin winding. This configuration causes a change of the applied magnetic field in romantic relationship to the rotor, creating stating torque. Applications include supporters and small appliances.
Split-Phase (induction start motor)
Has two pieces of stator windings. The “start” windings are positioned 90 degrees to the “run” windings and shift the magnetic field of the stator, inducing starting torque. Applications include little grinders, small followers, and blowers.
Capacitor-Start
The most typical single-phase motor found in industrial applications. It really is a altered split-stage electric motor with a capacitor in series with the start winding to supply a start boost. Program include small conveyors, huge blowers, pumps, and direct-drives.
Permanent-Split-Capacitor (PSC)
Uses identical primary and auxiliary windings with a capacitor to provide starting torque. They are the most reliable single-phase electric motor because no centrifugal beginning switch is necessary. Applications include enthusiasts and pumps in HVAC and refrigeration industries.