Fractional Kilowatt Motors

AC Series Motor

AC Series Motor: A series motor can be run from either dc or ac (single-phase) supply provided that both stator and rotor cores are laminated to limit the iron-loss. Figure 10.43 is the cross-sectional view of a AC Series Motor connected to ac supply. As the armature current alternates, the field polarity alternates in phase

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Four Phase Stepper Motor

Four Phase Stepper Motor: Four Phase Stepper Motor – The stepper motor is a special type of synchronous motor which is designed to rotate through a specific angle (called a step) for each electrical pulse received by its control unit. Typical step sizes are 7.5°, 15° or larger. The stepper motor is used in digitally

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Two phase AC Servo Motor

Two phase AC Servo Motor: For a low-power (a few hundred watts) control application, a balanced Two phase AC Servo Motor is ideally suited as it can be driven by means of a relatively rugged (drift-free) ac amplifier. The motor torque can be easily controlled by varying the magnitude of the ac voltage applied to

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Types of Single Phase Synchronous Motor

Types of Single Phase Synchronous Motor

Types of Single Phase Synchronous Motor: There are two types of single phase synchronous motor, namely, Reluctance Motor Hysteresis Motor Construction of Reluctance Motor and Torque Speed Characteristics: The reluctance motor, in general, results wherever the stator produces a rotating field in space and the rotor is noncylindrical such that the reluctance of the magnetic

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Shaded Pole Motor Working Principle

Shaded Pole Motor Working Principle: Figure 10.17 shows a typical Shaded Pole Motor with a squirrel-cage rotor. A small portion of each pole is covered with a short-circuited, single-turn copper coil called the shading coil. The sinusoidally-varying flux created by ac (single-phase) excitation of the main winding induces emf in the shading coil. As a

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