# Basic Electrical Engineering for SPPU R24 Course (FE - I/II -COMMON - ESE-102-ELE)

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Syllabus Basic Electrical Engineering - (ESE-102-ELE) Credit Examination Scheme : 02 CCE : 30 Marks 01 End-Semester : 70 Marks Term Work : 25 Marks Unit I Elementary Concepts and DC Circuits Elementary concepts : Resistance, EMF, current, potential difference, Ohm’s law. Overview of elementary power system showing stages such as Generation, Transmission, and Distribution of electrical energy. DC Circuits : Classification of electrical networks, simplifications of networks using series-parallel combinations and star delta transformation technique, Kirchhoff’s Laws and their applications for network solutions using loop analysis, Superposition theorem. (Chapters - 1, 2) Unit II Electromagnetism Magnetic Circuit : Concept of flux density, field strength, permeability, MMF, reluctance, their units, and relationships. Simple series magnetic circuit, comparison of electric and magnetic circuit. Electromagnetic Induction : Faradays Laws of electromagnetic induction, Fleming’s right-hand rule, statically and dynamically induced emf, self and mutual inductance, coefficient of coupling. Energy stored in magnetic field. (Chapter - 3) Unit III AC Fundamentals Generation of single-phase sinusoidal voltages and currents, their mathematical and graphical representation, Concept of cycle, period, frequency, instantaneous, peak, average and RMS. values, peak factor and form factor. Phase, Phase difference, lagging, leading in phase quantities and their phasor representation. Rectangular and polar representation of phasor. Study of AC circuits consisting of pure resistance, pure inductance, pure capacitance. (Chapter - 4) Unit IV AC Circuits Single Phase AC Circuits : Series R-L, R-C and R-L-C circuits, concept of impedance, power factor, phasor diagrams, Voltage, current and power waveforms. Concept of active, reactive and apparent power. Resonance in RLC series circuits. Three Phase AC Circuits : Concept of three-phase AC symmetrical system, phase sequence, balanced and unbalanced load. Voltage, current and power relations in three phase balanced star and delta connected loads along with phasor diagrams. (Chapters - 5, 6) Unit V Introduction to Electric Machines Single Phase Transformer : Construction, working principle, EMF equation, transformation ratio, rating, types, losses, regulation and efficiency at different loading conditions. Electrical Motors : a) D.C. Motors : Construction, working principle, types, voltage equation, characteristics and Applications. b) Three Phase Induction Motor : Working principle using rotating magnetic field theory, types and applications. c) Single Phase Induction Motor : Construction, working principle of single phase Induction motor. Applications of split phase, capacitor start and capacitor run motors. (Chapters - 7, 8)

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