Single-Phase Induction Motors
The single-phase 모터 operates beneath the same principle as the polyphase engine, except that the rotating magnetic field effect produced by the stator will not exist until running rpm is reached. Since no Single Phase Induction Motor beginning torque is available, 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 no start winding. This configuration causes a change of the applied magnetic field in relationship to the rotor, creating stating torque. Applications consist of enthusiasts and small appliances.
Split-Phase (induction start engine)
Has two sets 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 small grinders, small fans, and blowers.
Capacitor-Start
The most typical single-phase motor used in industrial applications. It really is a altered split-stage motor with a capacitor in series with the start winding to provide a start boost. Application include small conveyors, huge blowers, pumps, and direct-drives.
Permanent-Split-Capacitor (PSC)
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 starting switch is necessary. Applications include fans and pumps in HVAC and refrigeration industries.
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