Single-Phase Induction Motors
The single-phase motor operates beneath the same principle as the polyphase electric motor, except that the rotating magnetic field effect generated by the stator will not exist until running rpm is reached. Since no starting torque is offered, a design system is Single Phase Induction Motor china included to begin the motor. These are the various designations:
Torque-Speed Curves of Different Single-Phase Induction Motors
Shaded-pole: Have only 1 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 enthusiasts and small appliances.
Split-Phase (induction start engine)
Has two sets 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 supporters, and blowers.
Capacitor-Start
The most common single-phase motor used in industrial applications. It really is a modified split-stage engine with a capacitor in series with the start winding to supply a start boost. Software include small conveyors, large blowers, pumps, and direct-drives.
Permanent-Split-Capacitor (PSC)
Uses identical primary and auxiliary windings with a capacitor to provide starting torque. They will be the most reliable single-phase electric motor because no centrifugal starting switch is necessary. Applications include fans and pumps in HVAC and refrigeration industries.