Electric Circuit Analysis

EE25302:

Electric Circuit Analysis

Course Objective:

To Apply the basic circuit solving techniques for both AC and DC circuits. To know the applications of various network theorems, transient analysis. Resonance, two port networks and Three phase circuits

Introduction to DC And AC Circuits:

Types of sources, Review of Mesh and Nodal Analysis. Mesh and Nodal analysis with dependent sources applied to DC and AC Circuits- Super mesh and Super node analysis applied to DC and AC Circuits. Locus Diagrams.

Phasors and AC Steady State Analysis:

Concept of phasors, phasor relationships for R, L and C, Concept of impedance and admittance, sinusoidal steady state analysis using phasors, phasor diagrams.

Network Reduction Techniques:

Review of Series parallel circuits; star and delta transformation.

Network Theorems:

Superposition, Reciprocity, Compensation, Thevenin’s, Norton’s and Maximum Power Transfer Theorems; Analysis with dependent and independent sources-Application to DC and AC networks.

Solution of First and Second Order Networks:

Solution of first and second order differential equations for Series and Parallel R-L, R-C, R-L-C circuits, initial and final conditions in network elements, forced and free response, time constants, steady state and transient state response. Application of Laplace transforms and inverse Laplace transforms for electrical circuits.

Resonance and Two Port Networks:

Resonant circuits-series, parallel, series-parallel circuits-effect of variation of Q on resonance. Relations between circuit parameters- Q, resonant frequency and bandwidth.

Two Port Networks, terminal pairs, relationship of two port variables, impedance parameters, admittance parameters, transmission parameters and hybrid parameters, interconnections of two port networks

Three Phase Circuits

Three phase balanced / unbalanced circuits, phase sequence – analysis of three phase 3-wire and 4-wire circuits with star and delta connected loads, balanced & un balanced loads – phasor diagram of voltages and currents – power and power factor

measurements in three phase circuits.

T1: Simulation of circuits with Krichoff’s law validation

T2: Simulation of network theorems

T3: Simulation of circuit transients

T4: Simulation of Resonance & Three phase circuits

Weightage: Continuous Assessment: 50%, End Semester Examinations: 50%

Assessment Methodology: Quiz (5%), Project (15%), Assignment Programs (25%),

Practical (25%), Internal Examinations (30%)

References :

1. Nahvi, M., & Edminister, J. A. (2009). Electric circuits (4th ed., Schaum’s Outline Series). Tata McGraw-Hill.

2. Alexander, C. K., & Sadiku, M. N. O. (2013). Fundamentals of electric circuits (5th ed.). McGraw-Hill.

3. Rahmani-Andebili, M. (2020). DC electrical circuit analysis: Practice problems, methods, and solutions (1st ed.). Springer.

4. Sudhakar, A., & Shyammohan, S. P. (2015). Circuits and Networks: Analysis and synthesis (5th ed.). Tata McGraw-Hill.

5."Engineering Circuit Analysis" by Hayt, Kemmerle, 9th edition,2020