Single-Phase Induction Motors
The single-phase motor operates under the same principle as the polyphase motor, except that the rotating magnetic field effect produced by the Single Phase Induction Motor china stator will not exist until running rpm is reached. Since no beginning torque is obtainable, a design mechanism 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 start winding. This configuration causes a change of the applied magnetic field in romantic relationship to the rotor, creating stating torque. Applications include followers and small appliances.
Split-Phase (induction start motor)
Has two units 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.
The most common single-phase motor found in industrial applications. It really is a modified split-stage electric motor with a capacitor in series with the start winding to supply a start boost. Application include small conveyors, huge blowers, pumps, and direct-drives.
Uses identical primary 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 followers and pumps in HVAC and refrigeration industries.