Introduction To Coupled Circuits
The two circuits are said to be coupled circuits if all or part of the electrical energy supplied to one circuit is…
Equivalent Circuit Of Single Phase Induction Motor
The double revolving field theory can be effectively used to obtain the equivalent circuit of a single phase induction motor. The method…
Shaded Pole Induction Motor
This type of motor consists of a squirrel cage rotor and stator consisting of salient poles i.e. projected poles. The poles are…
Transformer Interview Questions Part 1
Q. What is a Transformer? A. A transformer is a static electrical apparatus designed to convert alternating current from one voltage to…
Concept Of Armature Reaction
To understand the concept of armature reaction, consider a two pole d.c.generator. For simplicity we will assume that the brushes are touching…
Winding Pitches
Now we will consider the definitions of different types of winding pitches, required in the design of the armature winding. 1.1 Back…
Basic Principle Of Interferometer
BASIC PRINCIPLE OF INTERFEROMETER Interferometer is a precise instrument for flow visualization. The variation of refractive index of the flowing gas with…
D.C. Compound Motor
The compound motor consists of part of the field winding connected in series and part of the field winding connected in parallel…
Torque Equation Of A D.C. Motor
It is seen that the turning or twisting force about an axis is called torque. Consider a wheel of radius R meters…
Classification Of Materials
When voltages are applied, materials offer different values of electrical resistances to the passage of currents through them. On the basis of…