Star to Delta and Delta to Star Conversion Formula
The Conversion or transformation or replacement of the Star connected load network to a Delta connected network and similarly a
Electrical Machines
Electrical Machines
Basics of AC Induction Motors
The basic principle of an AC induction motor is that one or more out-of-phase AC (sinusoidal) currents energize sets of
Electrical Machines Objective Questions
Electrical Machines Questions & Answers 1. Magnetic Circuits Principle of Energy Conversion Excited Magnetic Systems 2. Basic Concepts in Rotating
Transformer Open and Short Circuit Tests
We conduct open circuit and short circuit test on single phase transformer to determine the efficiency and regulation of a
Transformer Tap Changing Working Principle
Tap changing in Transformers It is a normal fact that increase in load lead to decrease in the supply voltage.
Advantages and Disadvantages of Squirrel Cage Induction motor
Squirrel Cage Induction Motor: Squireel cage induction motors are widely used in industries. Almost 70% of the industrial motors and drives comes under
Synchronous Generator Salient Pole vs Non Salient Pole
Salient Pole Synchronous Alternator: Salient pole Generators will have large diameter and short axial length Pole shoes cover 2/3 of the pitch
Why Armature is placed on Stator for Synchronous machines
Operation principle of synchronous machine is quite similar to dc machine. However difference exists in the synchronous machine as there
Advantages and Disadvantages of Slip Ring Induction Motor
Advantages: High Starting torque with low starting current. Maximum starting can be attained in the slip ring motor compared to
Squirrel Cage Induction Motor vs Slip Ring Induction Motor
Advantages of Squirrel-Cage Induction Motors The advantages of squirrel-cage motors compared with the slip ring induction motors are given below (i) They