BASIC ELECTRICAL ENGINEERING

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BASIC ELECTRICAL ENGINEERING

Introduction

BASIC ELECTRICAL ENGINEERING

    Electrical Engineering has been written as a core course for all engineering students viz. Electronics and Communication, Computer Engineering, Civil, Mechanical Engineering etc. With advancement in technologies in almost all spheres of engineering, it is becoming difficult to provide more than one slot for interdisciplinary courses. However, the author feels that no engineering can work without electric energy. The basic input to all engineering is the electric energy. 

    A basic course on Electrical Engineering is almost essential for all engineering students. Keeping this compulsion in mind and also that this course will normally he offered at the first year level of engineering, the author has made modest effort to give in a concise form various features of Electrical Engineering starting from simple ac circuits to Network theorems, measuring instruments, transformers, various de and ac machines including stepper motor.

 Electric Motor Maintenance and Troubleshooting

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Table of contents

1. D C CIRCUITS

i. 1 International System of Units

i.2 Circuit

i.3 Electric Current

i.4 Electric Potential 

i.5 Resistance 

i.5. 1 Conductivity and Conductance

i.6 Power

i. 7 Energy

i.8 Ohm's Law 

i.9 Kirchhoffs Laws 

i.10 Series Circuits 

ii. ELECTROMAGNETIC INDUCTION

ii.1 Introduction 

ii.2 Faraday's Laws of Electromagnetic Induction 

ii.3 Lenz's Lavv

ii.4 Laws of Electromagnetic Forces 

ii.4.1 Fleming's Left Hand Rule

ii.4.2 Flemings Right Hand Rule

ii.5 Dynamically Induced EMF (Generator or Motional EMF)

ii.5.1 Statically Induced EMF or Transformer EMF

ii.6 Self Inductance 

ii. 7 Mutual Inductance

ii.8 Hysteresis Loss

ii. 9 Eddy Current Loss .

2 NETWORK THEORY

2.1 Introduction 

2.2 Kirchhoffs Laws

2.3 Star-Delta Transformation 

2.4 Loop Analysis

2.5 Nodal Analysis

2.6 Superposition Theorem

2.7 Thevenin's Theorem 

2.8 Norton's Theorem

2.9 Maximum Power Transfer Theorem

3 THREE PHASE SUPPLY 

3.1 Three Phase Circuits 

3.2 Analysis of Star Circuits 

3.3 Delta Circuits

3.4 Measurement of Power in 3-Phase Circuits

3.5 Measurement of Reactive Power

4 BASIC INSTRUMENTS

4.1 Introduction

4.2 Types of Instruments

4.3 Moving Iron Type

4.4 Induction Instruments

4.5 Wattmeter

4.6 Methods of Connection in the Circuit

4.7 Energy Meters

4.8 Polyphase Induction Watt Hour Meters

4.9 Phantom or Fictitious Load

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