| Bibliography, etc. note |
Contents<br/>Unit I<br/>1. D C Circuit Analysis and Network Theorems:<br/>Circuit Concepts of network, Active and passive elements, voltage and current sources, concept of linearity and linear network, unilateral and bilateral elements, R, L and C as linear elements, source transformation.<br/>Kirchhoff's laws; loop and nodal methods of analysis; star-delta transformation; Network Theorems: Superposition Theorem, Maximum Power Transfer Theorem (Simple numerical problems)<br/><br/>Unit II<br/>2. Steady-State Analysis of Single Phase AC Circuits:<br/>AC Fundamentals: Sinusoidal, square and triangular waveforms- average and effective values, form and peak factors, concept of phasors, phasor representation of sinusoidally varying voltage and current. Analysis of series, parallel and series-parallel RLC Circuits: apparent, active & reactive powers, power factor, causes and problems of low powerfactor, powerfactor improvement; resonance in series and parallel circuits, bandwidth and quality factor (simple numerical problems)<br/><br/>Unit III<br/>3. Three Phase AC Circuits:<br/>Three phase system-its necessity and advantages, meaning of phase sequence, star and delta connections, balanced supply and balanced load, line and phase voltage/ current relations, three-phase power and its measurement (simple numerical problems)<br/><br/>4. Measuring Insturments<br/>Types of insturments, contruction and working principles of PMMC and moving iron type voltmeters & ammeters, single phase dynamometer wattmeter and induction type energy meter, use of shunts and multipliers (simple numerical problems on energy meter, shunts and multipliers)<br/><br/>Unit IV<br/>5. Introduction to Power System<br/>General layout of electrical power system and functions of its elements, standard transmission and distribution voltages, concept of grid (elementary treatment only)<br/><br/>6. Magnetic Circuit:<br/>Magnetic circuit concepts, analogy between electric & magnetic circuits, magnetic circuits with DC and AC excitations, magnetic leakage, B-H curve, hysteresis and eddy current losses, magnetic circuit calculations, mutaual coupling<br/><br/>7. Single Phase Transformer:<br/>Principle of operation, construction, e.m.f. equation equivalent circuit, power losses, efficiency (simple numerical problems), introduction to auto transformer<br/><br/>Unit V <br/>8. Electrical Machines<br/>Principles of electro mechanical energy conversion<br/>DC Machines: types, e. m. f. equation of generator and torque equation of motor, characteristics and applications of dc motors (simple numerical problems)<br/>Three Phase Induction Motor: types, Principles of operation, slip-torque characteristics, applications (numerical problems related to slip only)<br/>Single Phase Induction motor: Principle of operation and introduction to methods of starting, applications<br/>Three Phase Synchronous Machines: Principle of operation of alternator and synchronous motor and their applications. |
