Back EMF and Its Significance in DC Motor
What is Back EMF? When the armature of a DC motor rotates under the influence of the driving torque, the armature … Continue Reading
Electrical Machines
4 Advantages of Stationary Armature in Alternator
An alternator operates on the same fundamental principle of electromagnetic induction as a DC generator i.e., when the flux linking a … Continue Reading
Compensating Windings and Interpoles in DC Machines
Compensating Windings and Interpoles are one of the important step taken to minimize the undesirable effect of armature reaction in … Continue Reading
Armature Reaction in DC Motors
Armature reaction also occurs in a DC motor just like armature reaction in DC Generator. This is expected because when … Continue Reading
5 Types of DC Motors | Series, Shunt, and Compound
Like DC generators, there are different types of DC motors characterized by the connections of the field winding in relation … Continue Reading
Working Principle of DC Motor
A DC motor is an electrical machine that converts electrical energy into mechanical energy. DC motor working is based on the principle … Continue Reading
Objective Questions on Single Phase Motors | Part 4
46. The short coming of repulsion motor is (A) variation of speed with load (B) low power factor (C) tendency … Continue Reading
Construction of Universal Motors
A universal motor is one of the single-phase motors that can be operated on either direct current or single-phase alternating … Continue Reading
Three Phase Induction Motor: Construction and Working Principle
The three phase induction motors are the most widely used electric motors in the industry. They work on the principle … Continue Reading
Star-Star (Y-Y) Connection of Three Phase Transformers | Benefits and Challenges
Learn about the advantages and disadvantages of star-star (Y-Y) transformer connections. Discover key considerations to optimize performance and ensure reliable power distribution.