Electrical Engineering

Electrical Engineering

EG 1207 EE

                                                                                   Total:   6 hour /week

Year:  I                                                                                                             Lecture:   3 hours/week 

Semester:  II                                                                                                      Tutorial:    hours/week

Practical: 3  hours/week

Course Description:

This course focuses on familiarization of fundamental concepts in DC and AC electrical networks. 

Course Objectives:

After completing this course the students will be able to:

1.     Identify the basics of circuit elements and their networks

2.     Familiarize with the fundamentals of electricity and electromagnetism

3.     Apply the DC and AC supply.

4.     Describe the electric sources and loads.

Course Contents:

Unit 1.	Electromagnetism and Electromagnetic Induction:                                                  [6] 1.1.     Definition of magnetic field, magnetic flux, flux density, filed intensity and permeability of magnetic material 1.2.       Magnetic field due to current carrying conductor, force on a current carrying
	conductor 1.3.       Faraday’s laws of electromagnetic induction, induced EMF, lenz’s law 1.4.       Magnetic circuit concept, analogy to electric circuit 1.5.       Hysteresis loop for magnetic material, hard and soft magnetic material
Unit 2.	Electric Circuit Fundamentals: 2.1.       Electric current and voltage 2.2.       Circuit elements: Resistor, Inductor, Capacitor 2.3.       Voltage and current sources 2.4.       Independent and dependent sources 2.5.       Series and parallel circuits 2.6.       Electric power and energy	[6]

Unit 3.	DC Circuit Analysis:                                                                                                   [7] 3.1.     Ohm’s law 3.2.     Kirchhoff’s current and voltage laws 3.3.     Thevenin’s theorem 3.4.     Nortorn’s theorem 3.5.     Superposition theorem 3.6.     Maximum power transfer theorem 3.7.     Loop and nodal equations for electric networks
Unit 4.	Single Phase AC Circuit Analysis:                                                                            [8] 4.1.     Generation of sinusoidal EMF 4.2.     Instantaneous, peak, average and RMS values 4.3.     Application of complex number, review of complex number calculation and use of j operator 4.4.     Phasor representation of AC quantities 4.5.     AC excitation for RL, RC and RLC circuits 4.6.     Resonance in RLC series circuit 4.7.     Power in AC circuits: active power, reactive power, apparent power, power triangle and power factor
Unit 5.	3-Phase AC Circuits:                                                                                                  [6] 5.1.     Generation of 3-phase sinusoidal voltage 5.2.     Advantage of 3-phase system 5.3.     Line and phase quantities (current, voltage) 5.4.     Star and delta connection of 3-phase source and load. 5.5.     Power in 3-phase circuits
Unit 6.	Electric Machines:                                                                                                      [8] 6.1.      Transformers: Construction and working principle of single phase transformer 6.2.     DC motor and generator: Construction, generation of voltage and torque production 6.3.     Single phase AC motor 6.4.     3-phase induction motor: Construction and working principle 6.5.     3-phase synchronous generator: Construction and working principle

Unit 7.      Cells and Batteries:                                                              [4]

7.1.         Primary and secondary cells: definitions and examples, internal resistance of cell

7.2.         Lead acid cell: construction, chemical reaction during charging and discharging, methods of charging (constant voltage and constant current charging)

7.3.         Dry cell, Mercury cell, Ni-Cd cell, Li-ion cell

7.4.         Series and parallel connection of cells

Practical:                                                                                                                                          [45]

1.     Verification of Ohm’s law

2.     Verification of Kirchhoff’s current and voltage laws

3.     Verification of maximum power transfer theorem

4.     Measurement of active, reactive and apparent power in single phase ac circuit

5.     Measurement of active, reactive and apparent power in three phase ac circuit

6.     Measurement of internal resistance of batteries

7.     Performance of DC motors

Reference books:

1.     Theraja, B. L., Theraja, B. L., & Theraja, A. K. (2010). A textbook of electrical technology. Ram Nagar, New Delhi, India: S. Chand & Co.

2.     Gupta, J. B. (1999). Fundamentals of electrical engineering and electronics. New Delhi: S.K. Kataria & Sons Publishers.

3.     Del, T. V. (1984). Principles of electrical engineering. New Delhi: Prentice-Hall of India.

4.     Cogdell, J. R. (1999). Foundations of electrical engineering. Upper Saddle River, N.J:

Prentice Hall.