Basic Electrical Engineering
The aim of this book is to provide a consolidated text for the first year B.E. Computer Science and Engineering students and B.Tech Information Technology students of Anna University. The syllabus has been thoroughly revised for the non-semester yearly pattern by the University. The book, made up of five chapters, systematically covers the five units of the syllabus. It begins with a detailed discussion on the fundamentals of electric circuits. DC circuits, AC circuits, 3-phase circuits, resonance and the network theorems. Lecture-type presentation of the rudiments of the fundamentals in conjunction with hundreds of solved examples is the strength of this book. Magnetic circuits and various magnetic elements and their properties, with number of illustrations are presented. DC machines and transformers are further dealt with. Equivalent circuits of machines supported with the respective photographs will ease the reader to understand the concepts of machines much better. Synchronous machines and asynchronous machines and fundamentals of control systems with various practical examples and relevant worked illustrations conclude this book. A large number of numerical illustrations and diagrammatic representations make this book valuable for students and teachers.
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Magnetism and Electromagnetism
3-phase AC circuit alternator amps angle applied armature current armature resistance Calculate capacitive capacitor characteristics Circuit for illustration circuit of Fig coil component connected constant core curve DC machine DC motor delta delta connection electric circuit equation equivalent circuit excitation field current field resistance flow flux density flux linkage frequency full load given Hence hysteresis impedance increase induced emf induction motor inductor input lagging leakage reactance load current loop magnetic circuit magnetic field magnetic flux maximum no-load number of turns Ohm’s law output parallel pole potentiometer power factor produced rated Refer to Fig referred to primary resistor resonance rotating rotor secondary winding series circuit shown in Fig shunt field signal single-phase Solution speed starter starting stator stepper motor synchronous terminal voltage theorem three-phase torque transformer vector diagram voltage drop volts wave zero µµ