When a single-phase induction motor is supplied from a source, the flux produced will be alternating in nature. Due to transformer action, an e.m.f is induced in the stationary rotor bars and the flux produced will also be alternating. As the stator flux and the rotor flux have the same magnetic axis, they lack to […]
Working Principle of Single Phase Induction Motor Read More »
We know that the expression for torque of an induction motor under running condition is given by, \[T=\frac{KsE_{2}^{2}{{R}_{2}}}{R_{2}^{2}+{{(s{{X}_{2}})}^{2}}}\]
Maximum Torque of Induction Motor – Derivation & Condition Read More »
Figure 1: Power Flow Diagram of Induction Motor.
Power Flow Diagram of Induction Motor Read More »
Figure 1: Losses in Induction Motor.
Losses and Efficiency of Induction Motor Read More »
If the voltage applied to the induction motor contains harmonics, then the harmonic fluxes are developed in the gap due to the magnetics of the motor. These harmonic fluxes induce e.m.f and circulate harmonic currents in the rotor windings.
Crawling and Cogging in Induction Motor Read More »
Split Phase Induction Motor is a type of A.C. single phase motor. It has two windings placed at 90° to each other. These are starting winding and main windings. The main winding has low resistance and high inductance. It is wound with thick conductor having less number of turns then the starting winding. It is
What is Split Phase Induction Motor? Working, Diagram & Characteristics Read More »
Braking is the method of stopping the motor whenever it is needed. A three-phase induction motor can be braked by disconnecting the stator windings from the supply and feeding two stator phases with DC. A three phase slip-ring motor can also be braked by opening one supply lead to the motor and connecting a suitable
Induction Motor Braking – Methods & Diagram Read More »
The Star Delta Starter used to starting the standard squirrel cage induction motors with both ends of each of the three windings brought out (six terminals) are known as star-delta motors. The Star Delta Starter connects the three stator windings in star across the rated supply voltage at the time of starting. After the motor
What is Star Delta Starter? Working, Diagram, Construction & Advantages Read More »