Induction Motor

Faults in Single Phase Induction Motors and their Remedies

During the operation of single-phase ac motors, it experiences various faults at the time of starting or stopping or while running. The faults in single-phase motors are due to many reasons like overcurrents or undercurrents, ove…

What is Crawling and Cogging of Induction Motor ?

Sometimes the induction motor shows undesirable characteristics known as 'Crawling and Cogging'. These characteristics will affect the motor operation i.e., it reduces the speed of the motor from its full speed rating or …

Phasor Diagram of Induction Motor

The induction motor and transformer both are singly energized devices. The stator and rotor of an induction motor can be compared to the primary and secondary windings of the transformer. Similarly, from the e.m.f. equation of tr…

Maximum Torque Condition of Induction Motor & Expression

In the last article, we have seen the torque equation of induction motor i.e., the amount of torque produced on the rotor depends upon rotor current, rotor resistance, rotor reactance, and slip. From the torque-slip characteris…

Torque Slip Characteristics of Induction Motor

We know that the induction motor is an asynchronous motor (i.e., not a constant speed motor). Its speed changes with a change in the load connected to it. As the load on the motor increases the slip of the motor increases. This m…

Equivalent circuit of an Induction Motor

An induction motor is an asynchronous motor i.e., its speed change with a change in load. It always runs on a lagging power factor. The principle of working of an induction motor to similar to the transformer i.e., electromagneti…

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