Department of Electrical and Electronic Engineering Khulna University of Engineering & Technology Khulna-9203, Bangladesh Course Plan/Profile (Tentative) 1. Course No: EE 1103 Contact/Hours: 3 hrs/week Credit: 3.0 2. Course Title: Basic Electrical Engineering 3. Course Teacher: (1) Prof. Dr. Mohiuddin Ahmad (2) Prof. Dr. Md. Rafiqul Islam 4. Course Content: Fundamental concepts and units, Variables and parameters: Voltage, current, power, energy, independent and dependent sources, resistance. Basic laws: Ohm’s law, Kirchhoff’s current and voltage laws, Joule’s law. Simple resistive circuits: Series and parallel circuits, voltage and current division, Wye-Delta transformation. Techniques of circuit analysis: Nodal and mesh analysis including supernode and supermesh. Network theorems: Source transformation, Thevenin’s, Norton’s and superposition theorems with applications in circuits having independent and dependent sources, Millman’s theorem, Compensation theorem, Maximum power transfer theorem and Reciprocity theorem. Source Concept: Sources of E.M.F, primary and secondary cells. Energy storage elements: Inductors and capacitors, series & parallel combination of inductors and capacitors. Magnetic quantities and variables: Flux, permeability and reluctance, magnetic field strength, magnetic potential, flux density, magnetization curve. Laws of magnetic circuits: Ohm’s law and Ampere’s circuital law. Magnetic circuits: series, parallel and series-parallel circuits. Introduction to measuring instruments: Ammeter, voltmeter, galvanometer and wattmeter. Alternating Current circuits: Introduction to alternating current circuits, instantaneous, average and R.M.S values, complex impedance and phasor algebra, Power relations in A/C circuits: real, reactive and apparent power, power factor, power factor improvement. Single-phase AC circuits: Series and parallel RL, RC and RLC circuits, nodal and mesh analysis, application of network theorems in AC circuits. Resonance in AC circuits: Series and parallel resonance, half-power bandwidth, quality factor. 5. Learning Outcome: This course has two part, viz. dc circuits analysis and network theorems; steady-state analysis of single-phase ac circuits. The course will enable the students to gain preliminary knowledge in basic concepts of Electrical Engineering. Upon successful completion of the course the students should be able to (i) (ii) (iii) (iv) (v) Understand of circuit elements R, L, and C and describe the basic electrical quantities (V, I, P) Do circuit analysis using circuit analysis methods on DC circuits Explain the basic concept of magnetism and electromagnetism and its application in dc and ac circuits Understanding of AC circuit/system concepts Understanding of single phase ac system concepts. 6. Class/Lab Schedule: (b) AC Part SL 1 Week Lecture 1 1 Topics to be discussed Introduction to alternating current, sinusoidal voltage, Introduction to measuring instruments - Ammeter, voltmeter, galvanometer and wattmeter Instantaneous current, voltage, and power. Alternating current, period, cycle, frequency, angular velocity, phase, phase difference - examples 2 1 2 3 2 3 4 2 4 Elementary circuit arrangement of R, L, and C R, L, C, RL, RC, and RLC branch 5 3 5 Voltage, current, impedance, and power expression of R, L, C, RL, RC, and RLC branch. 6 7 3 4 6 7 Calculation of v, I, Z, p, for R, L, C, RL, RC, and RLC branch 8 9 10 4 5 5 8 9 10 11 6 11 12 6 12 Series resonance by varying frequency, inductance and capacitance. Calculations. Series RLC circuit as a selector 13 7 13 Vector diagram, Series and parallel resonance 14 7 14 Concept of admittance, susceptance in parallel circuits; Calculation of branch currents in parallel circuits. 15 8 15 Resonance in parallel branch. Singular case of parallel resonance. 16 9 16 Quality factor of series and parallel circuits 17 10 17 Concept of power & power factor; expression of power in complex notation. Power factor improvement. 18 11 18 Series and parallel RL, RC and RLC branches 19 12 19 Node and mesh analysis. 20 13 20 Thevenin’s theorem, Norton’s theorem, and Superposition theorem in ac circuits Resistor, Inductor, and capacitor Power and energy expression of C and L branch Real power, reactive power and reactive volt-amperes Effective current and voltage – average power Form factor, peak factor; Power - real & reactive Representation of sinusoidal time varying quantities as phasors; concepts of reactance, impedance and their representation in complex forms using j operator. Steady state analysis of series R-L-C circuit & its phasor diagram; Series resonance Ref. [1]-chII, [2]-ch13 [4]-ch10 [1]-chII, [2]-ch13 [4]-ch11 [2]-ch10, [2]-ch11 [2]-ch3 [1]-chII, [2]-ch13 [1]-chII, [2]-ch13 [1]-chII, [2]-ch13 [1]-chII [1]-ChIII, [2]-ch13 [1]-ChIII [1]-chIV, [2]-ch14 [1]-ChV, [2]-ch20 [1]-ChV, [2]-Ch20 [1]-ch2, [2]-Ch20 [1]-ChV, [2]-ch15 [1]-ChV [1]-ChV [2]-ch18 [2]-ch15 [2]-ch17 [2]-ch19 7. Date of Class Test/Quiz: 4th week, 7th week, 10th week. 8. Teaching Methodology/Strategy: Whiteboard and/or Multimedia presentation will be used for delivering lectures. 9. Signature of the Course Teacher: References: Text Book (For AC part): [1] Alternating Current Circuits by Russel M. Kerchner and George F. Corcoran (4th Edition) Reference Book (For AC part) [2] Introductory Circuit Analysis by Robert L. Boylestad (12th Edition) [3] Basic Engineering Circuit Analysis - J. Irwin, R. Delms, Wiley (10th Ed.) [4] A Text Book of Electrical Technology – Vol. I – Basic Electrical Engineering – B. L. Thereja [5] Engineering Circuit Analysis by William H. Hayt, Jr. Jack E. Kennedy and Steven M. Durbin (8th Edition) [6] Fundamentals of Electric Circuits by Charles K. Alexander and Matthew N. O. Sadiku (3rd Edition) [7] Basic Electrical Engineering – Bakshi Chapter 2, 3, 4, 5 Chapter 13, 14, 15, 17,18,19, 20 Chapter 8, 9 Chapter 11, 12, 13, 14 16, Chapter 10, 11 Chapter 9, 10, 11 Chapter 6, 7 Class Test Exam: Total, Three class tests will be taken throughout the Term. The dates of the tests will be announced in the class hours. Marks Distribution: The method of evaluating student performance: Attendance and Class Participation : 10% Class Tests & Homework : 20% Final Examination : 70% Total : 100% Special Instructions: • No make-up exams of the class tests will be allowed. Class test will be allowed in case of severity. • Students should not enter into the class after 5 minutes of the starting time. • Homeworks and assignments are to be submitted within the announced deadline. No late submission will be granted. • Students not attending 60% of the classes will not be allowed to sit for the final exam.