Working Principle of Transformer
A transformer is a fundamental electrical device that transfers electrical energy between two or more circuits through the principle of … Continue Reading
Electrical Machines
Electrical and Mechanical Noise in Motors
Two types of noises occur in an electric motor, one is electrical noise and the other is mechanical noise. The … Continue Reading
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
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