Shaded Pole Induction Motor

A Shaded Pole Induction Motor is a simple type of starting single phase induction motor. It consists of a starter and a cage-type rotor. The stator is made of salient poles. A copper ring is fitted on the smaller part of each pole. This section of the pole is known as Shaded Pole. The ring…

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Equivalent Circuit of a Single Phase Induction Motor

The Equivalent circuit of a Single Phase Induction Motor can be obtained by two methods named as the Double Revolving Field Theory and Cross Field Theory. Firstly the equivalent circuit is developed on the basis of double revolving field theory when only its main winding is energized. Considering the case when the rotor is stationary…

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Permanent Split Capacitor (PSC) Motor

The Permanent Split Capacitor motor also has a cage rotor and the two windings named as main and auxiliary windings similar to that of a Capacitor Start and Capacitor Start Capacitor Run Motor. It has only one capacitor connected in series with the starting winding. The capacitor C is permanently connected in the circuit both…

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Capacitor Start Capacitor Run Motor

The Capacitor Start Capacitor Run Motor has a cage rotor, and its stator has two windings known as Main and Auxiliary Windings. The two windings are displaced 90 degrees in space. There are two capacitors in this method one is used at the time of the starting and is known as starting capacitor. The other…

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Split Phase Induction Motor

  The Split Phase Motor is also known as a Resistance Start Motor. It has a single cage rotor, and its stator has two windings known as main winding and starting winding. Both the windings are displaced 90 degrees in space. The main winding has very low resistance and a high inductive reactance whereas the…

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Capacitor Start Induction Motor

A Capacitor Start Motors are the single phase Induction Motor that employs a capacitor in the auxiliary winding circuit to produce a greater phase difference between the current in the main and the auxiliary windings. The name capacitor starts itself shows that the motor uses a capacitor for the purpose of the starting. Contents: Phasor…

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Starting Methods of a Single Phase Induction Motor

The Single Phase Motor is not self starting and hence needs an auxiliary means or equipment to start the single phase induction motor. Mechanical methods are impractical and, therefore the motor is started temporarily converting it into two phase motor. Single phase Induction motors are usually classified according to the auxiliary means used to start…

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Working Principle of a Single Phase Induction Motor

A Single Phase Induction Motor consists of a single phase winding which is mounted on the stator of the motor and a cage winding placed on the rotor. A pulsating magnetic field is produced, when the stator winding of the single phase induction motor is energized by a single phase supply. The word Pulsating means…

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Equivalent Circuit of an Induction Motor

Equivalent Circuit of an Induction motor enables the performance characteristics which are evaluated for steady state conditions. An induction motor is based on the principle of induction of voltages and currents. The voltage and current is induced in the rotor circuit from the stator circuit for the operation. The equivalent circuit of an induction motor…

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Isolated Induction Generator

Isolated Induction Generator means that an induction machine can work as a generator even without an external supply system. A three phase delta connected capacitor bank is connected across the terminals of the machine as shown in the figure below. It provides a necessary excitation to the machine. The residual flux present in the machine…

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