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## Principle of Operation of a D.C. Motor

## Optimum placing of an Intersheath

## Economical Core diameter

## Capacitance Grading

## Intersheath Grading

## Grading of Cables

## Stress in Insulation

## Capacitance of a Single Core Cable

## Insulation Resistance of a Cable

## Ideal Transformer on No load

## Why d.c. can not be used on Transformer?

## General construction of a Cable

## Requirements of the Cables

## Comparison of Underground cables and Overhead lines

## Double cage rotor

## Deep bar Rotor

## High torque Cage Machines

## Blocked Rotor Test

## No load test on Induction Motor

## Constant V/f speed control

## Stator Frequency control

## Speed Control of Induction Machines

## Theory of Induction machines with varying flux (Φ)

## Starting of Slip-Ring Induction motors

## Merits and Demerits of Cage induction motor

## Auto-Transformer Starter

## Stator Rheostat Starter

## Necessity of Starter

## Starting of Cage Machine

## Theory of Induction machine with constant flux

## Torque Expression for Induction Motor

## Ideal Op-amp

## Difference b/w Induction Machines and Transformers

## Effect of Change in Rotor Resistance on Torque

## Torque – Slip Characteristics

## Power flow in an Induction Motor

## Equivalent circuit of Induction Machine

## Difference b/w Induction Machines and Transformers

## Working Principle of Induction Machine

## Construction of Induction machines