Electrical and Electronics Engineering eBook

Electrical and Electronics Engineering eBook
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Electrical and Electronics Engineering eBook

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PREFACE TO THE FIRST EDITION The book Electrical and Electronics Engineering has been written for the first year Engineering Students according to the latest RGPV Syllabus. The aim of writing this book is to provide the students with a clear and logical presentation of the subject, basic concepts, principles and their link with physical phenomena. The book is written in a very simple way and every effort has been made to make the treatments simple, comprehensive and complete. The subject matter has been developed in a step by step way for easy understanding. Throughout the book, the stress has been given on fundamental concepts through illustrative examples and figures. To clarify the concepts and making the topics interesting, a number of solved examples are incorporated at appropriate places. Practical exercises, problems and a number of objective type questions with their answers are given at the end of each chapter. The book is divided into five units. The first unit is devoted to the basic ideas of Electrical Circuit Analysis including the different theorems used for Circuit Analysis. The second unit emphasises on the Basic Concepts of Transformers. The constructional details, working principles and explanations of D.C. Machine, Induction Machine and Synchronous Machine are discussed in the third unit under the head of Rotating Electric Machines. Unit fourth explains the different number systems, theorems and different gates under Digital Electronics. The last unit fifth throws light on the Electronic Components and Circuits which are the basis of Electronic Engineering. Inspite of my best efforts, it is possible that some unintentional errors might have crept in. I shall acknowledge with gratitude any such errors brought to my notice. Suggestions from students and Professors for improvement of the book would be thankfully acknowleged. I hope that the book will be useful for the readers. DELHI
Sanjeev Gupta
SYLLABUS RGPV Syllabus ELECTRICAL AND ELECTRONICS ENGINEERING B.E. - 104
UNIT - I Electrical Circuit Analysis Voltage and current sources, dependent and independent sources, source conversion, DC circuits analysis using mesh and nodal method, Thevenin s and superposition theorem, star-delta transformation. 1-phase AC circuits under sinusoidal steady state, active, reactive and apparent power, physical meaning of reactive power, power factor, 3-phase balanced and unbalanced supply, star and delta connections. UNIT - II Transformers Review of laws of electromagnetism, mmf, flux, and their relation, analysis of magnetic circuits. Single-phase transformer, basic concepts and construction features, voltage, current and impedance transformation, equivalent circuits, phasor diagram, voltage regulation, losses and efficiency, OC and SC test. UNIT - III Rotating Electric Machines Constructional details of DC machine, induction machine and synchronous machine, working principle of 3-Phase induction motor, EMF equation of 3-Phase induction motor, concept of slip in 3-Phase induction motor, explanation of Torque-slip characteristics of 3-Phase induction motor, classification of self excited DC motor and generator. UNIT - IV Digital Electronics Number systems used in digital electronics, decimal, binary, octal,