103004: Basic Electrical Engineering Syllabus

103004: Basic Electrical Engineering

Teaching Scheme: TH: 03      Hr/week

PR: 02 Hr/Week

Credits 04

Examination Scheme: In-Semester:  30 Marks

End-Semester:  70 Marks     PR:  25 Marks                                                      

Prerequisite Courses, if any:

Engineering physics, electron theory, electricity, potential and kinetic energy

Course Overview:

This course aims at enabling students of all Engineering Branches to understand the basic concepts of electrical engineering. This course is designed to provide knowledge of fundamentals and various laws in electromagnetic and magnetic circuits, electrostatics.

The steady state analysis of AC and DC circuits, and its applications transformer, batteries and different energy conversion techniques are also included in this course. 

Course Objectives:

1. To introduce fundamental concepts, various laws-principles and theorems associated with electrical systems. 

2.  To impart basic knowledge of all electrical quantities such as current, voltage, power, energy, frequency along with different types of fields. 

3. To provide knowledge about fundamental parameters such as resistance, inductance and capacitance and magnetic circuits, AC and DC circuits. 

4. To provide knowledge of the concepts of transformer, different energy conversions techniques.

Course Outcomes:

At the end of course students will be able to

CO1:  Differentiate between electrical and magnetic circuits and derive mathematical relation for self and mutual inductance along with coupling effect.

CO2: Calculate series, parallel and composite capacitor as well as characteristics parameters of alternating quantity and phasor arithmetic

CO3: Derive expression for impedance, current, power in series and parallel RLC circuit with AC supply along with phasor diagram.

CO4: Relate phase and line electrical quantities in polyphase networks, demonstrate the operation of single-phase transformer and calculate efficiency and regulation at different loading conditions

CO5: Apply and analyze the resistive circuits using star-delta conversion KVL, KCL and different network theorems under DC supply.

CO6: Evaluate work, power, energy relations and suggest various batteries for different applications, concept of charging and discharging and depth of charge.

Course Contents

Unit I Electromagnetism:(6Hrs)

Review: resistance, emf, current, potential, potential difference and Ohm’s law Electromagnetism: Magnetic effect of an electric current, cross and dot conventions, right hand thumb rule, nature of magnetic field of long straight conductor, solenoid and toroid. Concept of mmf, flux, flux density, reluctance, permeability and field strength, their units and relationships. Simple series magnetic circuit,

Introduction to parallel magnetic circuit (Only theoretical treatment), comparison of electric and magnetic circuit, force on current carrying conductor placed in magnetic field, Fleming’s left-hand rule. Faradays laws of electromagnetic induction, Fleming’s right hand rule, statically and dynamically induced e.m.f., self and mutual inductance, coefficient of couplings. Energy stored in magnetic field.

Unit II Electrostatics and AC Fundamentals (6 Hrs)

A) Electrostatics:  Electrostatic field, electric flux density, electric field strength, absolute permittivity, relative permittivity and capacitance. Capacitor, capacitors in series and parallel, energy stored in capacitors, charging and discharging of capacitors (no derivation) and time constant. (2Hrs)

B) AC Fundamentals: Sinusoidal voltages and currents, their mathematical and graphical representation, Concept of cycle, Period, frequency, instantaneous, peak(maximum), average and r.m.s. values, peak factor and form factor. Phase difference, lagging, leading and in phase quantities and phasor representation. Rectangular and polar representation of phasor. (4Hrs)

Unit III   Single Phase AC Circuits (06 Hrs)

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 

Unit IV Polyphase A.C. Circuits and Single-phase Transformers (06 Hrs)

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. (3Hrs)

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. (3Hrs)

Unit V   DC Circuits: (06 Hrs)

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. 

Unit VI Work, Power, Energy and Batteries (06 Hrs)

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. (4Hrs)

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 (2Hrs)

Books & Other Resources: 

Text Books:

1. V.D. Toro, Principles of Electrical Engineering, Prentice Hall India, 1989

2. D. P. Kothari, I.J. Nagrath, Theory and Problems of Basic Electrical Engineering, PHI Publication  3. V.K. Mehta, RohitMehata Basic Electrical Engineering, S Chand Publications

4. B.L. Theraja, A text book on electrical technology Vol-I

Reference Books:

1. H Cotton, Electrical technology, CBS Publications

2. L. S. Bobrow, ―Fundamentals of Electrical Engineering‖, Oxford University Press, 2011.

3. E. Hughes, ―Electrical and Electronics Technology‖, Pearson, 2010.

4. D. C. Kulshreshtha, ―Basic Electrical Engineering‖, McGraw Hill, 2009.