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  1. D.C. NETWORKS

Current Electricity Basic Concepts

Definitions of Important Tenns Relating Network

Limitations of Ohms Law

Kirchhoffs Laws

Applications of Kirchhoffs Law

Source Conversion

Solving Equations by Determinants Cramer

Superposition Theorem

Thevenins Theorem

Nortons Theorem

Maximum Power Transfer Theorem

Delta Star Transformation

Compensation Theorem States

Reciprocity Theorem

Millmans Theorem

  1. SINGLE PHASE A.C. CIRCUITS

Introduction to Alternating Current

Generation and Equation of Altering Voltages and Currents

Alternating Voltage and Current

Single Phase Circuits

General Aspects in Single Phase

Transients Example

  1. THREE PHASE A.C. CIRCUITS

Introduction Three Phase A C Circuits

Advantages of Polyphase Systems

Generation of Three Phase Voltages

Phase Sequence and Numbering Of Phases

Inter connection of three phases

Star Wye Y Connection

Delta 6 Mesh Connection

Comparison between Star and Delta Systems

Measurement of Power in 3 Phase Circuit

Measurement of Reactive Volt Amperes

Unbalanced Star Connected Load

Unbalanced Delta Connected Load

Power Factor Improvement

  1. ELECTROMAGNETISM

Magnetic Field

Terms Connected With Magnetic Material

Classification of Magnetic Materials

Magnetically Soft Materials

Magnetically Hard Materials

Laws of Magnetic Force

Magnetic Field Due To Current Carrying Conductor

Magnetic Flux and Flux Density

Magnetomotive Force and Magnetic Field Strength

Force On a Current Carrying Conductor Lying In a Magnetic Field

Magnetizing Force of a Long Straight Conductor

Magnetizing Force of a Long Solenoid

Amperes Law

Terms Connected With Magnetic Circuit

Comparison of Electric and Magnetic Circuits

Magnetic Leakage and Fringing

Losses in Magnetic Materials

Faradays Laws of Electromagnetic Induction

Induced

Inductances in Series

Inductances Parallel

Highlights Electromagnetism

  1. TRANSFORMERS

General Aspects

Basic Definitions Transformers

Working Principle of a Transformer

Transformer Ratings

Kinds Transformer

Transformer Construction

Transformer Windings Terminals Tapping and Bushings

Transformer Cooling

Three Phase Transformers

Highlights in Transformers

Objective Type Questions

Theoretical Questions Transformers

Single phase Transformer

Elementary Theory of Ideal Transformer

E M F Equation of a Transformer

Voltage Transformation Ratio K

Transformer with Losses but No Magnetic Leakage

Resistance and Magnetic Leakage

Transformer with Resistance and Leakage Reactance

Equivalent Resistance and Reactance

Total Voltage Drop in a Transformer

Equivalent Circuit

Transformer Tests

Regulation of a Transformer

Percentage Resistance and Reactance

Transformer Losses

Transformer Efficiency

All Day Efficiency

Transformer Noise

Auto Transformer

Polarity of Transformers

  1. POLYPHASE INDUCTION MOTORS

General Aspects Polyphase Induction Motors

Classification of A C Motors

Constructional Details

Production of Rotating Magnetic Field

Theory of Operation of an Induction Motor

Slip

Frequency of Rotor Current

Rotor E M F and Rotor Current

Torque and Power

Effect of Change in Supply Voltage on Starting Torque

Effect of Change in Supply Voltage on Torque and Slip

Torque Slip and Torque Speed Curves

Operating Characteristics 3 Phase Squirrel Cage Induction Motor

Shows a Wound Rotor Induction Motor with Controller Rheostat

Power Stages in an Induction Motor

Induction Motor as Transformer

Equivalent Circuit of an Induction Motor

Starting of Induction Motors

Factors Governing Performance of Induction Motors

Effects of Operating Conditions

Ratings of 3 Phase Induction Motors

Squirrel Cage Motors Advantages Disadvantages and Applications

Wound Rotor or Slip Ring Induction Motors Advantages Disadvantages and Applications

Comparison of a Squirrel Cage and a Slip Ring or Phase Wound

Comparison Induction Synchronous Motors

Highlights in Polyphase Induction Motors

  1. SINGLE PHASE MOTORS

Single Phase Motors

Types of Single Phase Motor

Single Phase Induction Motors

Split Phase Motors

Repulsion Motor

Repulsion Start Induction Motor

Repulsion Induction Motor

A C Series Motor

Universal Motor

Single Phase Synchronous Motors

Introduction

Advantages and Applications

Construction and Working

8 1 Introduction

Types of Servo Motors

Tachometer Generators

  1. DIRECT CURRENT (D.C.) MACHINES

Characteristics of D C Generators

Types of D C Generator

Power Division D C Generator

Construction of D C Machines

Applications of D C Generators

Direct Current Motor

Speed Control of DC Motors

Losses and Efficiency of DC Machines

  1. MEASURING INSTRUMENTS

Measuring Instruments

Moving Iron Instruments Ammeters and Voltmeters

Measurement of Resistance

  1. POWER SUPPLY SYSTEM

Power Supply System

Sources of Energy

General Aspects in Power Supply System

System of Transmission

Line Supports

Conductor Material

Line Insulators

Distribution Systems

Electric Supply System A C

Overhead and Underground Systems