Introduction: Sources of energy; General structure of electrical power systems, Power transmission and distribution via overhead lines and underground cables, Steam, Hydel, and Nuclear power generation; DC Networks: Kirchhoff’s laws, node voltage and mesh current methods, Delta-star and star-delta conversion, Superposition principle, Thevenin’s, Norton’s theorems and Maximum power transfer theorem; Single phase AC Circuits: Single phase EMF generation, average and effective values of sinusoids, solution of R,L,C series circuits, the j operator, complex representation of impedances, phasor diagram, power factor, power in complex notation, solution of parallel and series – parallel circuits; Three phase AC Circuits: Three phase EMF generation, delta and Y – connections, line and phase quantities, solution of three phase circuits, balanced supply voltage and balanced load, phasor diagram, measurement of power in three phase circuits, Three phase four wire circuits; Magnetic Circuits: Ampere’s circuital law, B – H curve, solution of magnetic circuits, hysteresis and eddy current losses; Transformers: Construction, EMF equation, ratings, phasor diagram on no load and full load, equivalent circuit, regulation and efficiency calculations, open and short circuit tests, auto-transformers; DC Machines: Construction, EMF and Torque equations, Characteristics of DC generators and motors, speed control of DC motors and DC motor starters; Electrical Measuring Instruments: DC PMMC instruments, shunt and multipliers, multimeters, Moving iron ammeters and voltmeters, dynamometer, wattmeter, AC watthour meter, extension of instrument ranges.
Text/Reference Books:
- E. Hughes, “Electrical Technology,” Pearson Education, 2010.
- V. Del Toro, “Electrical Engg Fundamentals,” PHI Learning, 2009.
- I. J. Nagrath and D. P. Kothari, ‘Basic Electrical Engineering’ TATA Mc Graw Hill Education, 2009.
- D. A. Bell, “Electric Circuits,” 7th Ed., Oxford Higher Education, 2009.
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