Basic Electrical Engineering for SPPU 19 Course (FE - I/II - Common - 103004)(END SEM) (Decode)

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Unit III : Single Phase AC Circuits Study of AC circuits consisting of pure resistance, pure inductance, pure capacitance, series R-L, R-C and R-L-C circuits, phasor diagrams, voltage, current and power waveforms, resonance in series RLC circuits, concept of impedance, concept of active, reactive, apparent, complex power and power factor, Parallel AC circuits (No numericals), concept of admittance. (Chapter - 3) Unit IV : Polyphase A.C. Circuits and Single Phase Transformers A) Polyphase A.C. Circuits : Concept of three-phase supply and phase sequence. Balanced and unbalanced load, Voltages, currents and power relations in three phase balanced star-connected loads and delta-connected loads along with phasor diagrams. B) Single phase transformers : Principle of working, construction and types, emf equation, voltage and current ratios. Losses, definition of regulation and efficiency, determination of these by direct loading method. Descriptive treatment of autotransformers. (Chapter - 4) Unit V : DC Circuits Classification of electrical networks, Energy sources – ideal and practical voltage and current sources, Simplifications of networks using series and parallel combinations and star-delta conversions, Kirchhoff’s laws and their applications for network solutions using loop analysis, Superposition theorem, Thevenin’s theorem. (Chapter - 5) Unit VI : Work, Power, Energy and Batteries A) Work, Power, Energy : Effect of temperature on resistance, resistance temperature coefficient, insulation resistance, conversion of energy from one form to another in electrical, mechanical and thermal systems. B) Batteries : Different types of batteries (Lead Acid and Lithium Ion), construction, working principle, applications, ratings, charging and discharging, concept of depth of charging, maintenance of batteries, series -parallel connection of batteries. (Chapter - 6)

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Author: [U.A.Bakshi, Santosh Mhetre] Pages: 201 Edition: 2020 Vendors: Technical Publications