Network theory(syllabus 2-2)

UNIT I: Three phase circuits

Three phase circuits: Phase sequence- Star and delta connection-Relation between line and phase voltages and currents in balanced systems-Analysis of balanced and unbalanced 3 phase circuits-Measurement of active and reactive power.

UNIT II: D.C Transient Analysis

Transient response of R-L, R-C, R-L-C circuits (Series and parallel combination) for D.C excitation-Initial conditions-solution method using differential equation and laplace transforms.

UNIT III: A.C Transient Analysis

Transient response of R-L, R-C, R-L-C circuits (Series and parallel combination) for sinusoidal excitations-Initial conditions-Solution method using differential equation and lap lace transforms.

UNIT IV: Network Functions

The concept of Complex Frequency, Physical Interpretation of Complex Frequency, Transform Impedance and Transform Circuits, Series and parallel Combination of Elements, Terminal Pairs or Ports, Networks Functions for the One-port and Two-port, Poles and Zeros of Network Functions, Significance of poles and Zeros, Properties of Driving Point Functions, Properties of Transfer Functions, Necessary Conditions for Driving Point Functions, Necessary Conditions for Transfer Functions, Time Domain Response from Pole Zero Plot.

UNIT V: Network Parameters I

Two port network parameters – Z, Y, ABCD and hybrid parameters and their relations.

UNIT VI: Network Parameters-II

Cascaded networks, concept of transformed network - 2port network parameters using transformed variables.

UNIT VII: Filters-I

Low pass, High pass, Band pass, Band elimination, Prototype filter design

UNIT VIII: Fourier analysis of A.C Circuits

The Fourier theorem, consideration of symmetry, exponential form of Fourier series, line spectra and phase angle spectra, Fourier integrals and Fourier transforms, properties of Fourier transforms.

TEXT BOOKS:

1. Electric circuits by A.Chakrabarthy, Dhanipat Rai & Sons

2. Circuits & Networks by A. Sudhakar and Shyammohan S Palli, Tata McGraw- Hill

3. Electric circuit analysis by B. Subrahmanyam, I.K international

REFERENCE BOOKS:

1. Network Analysis by M.E Van Valkenberg.

2. Electric circuit Analysis by C.L. Wadhwa, New Age international

3. Electric circuits by David A. Bell, Oxford University press

4. Basic circuit analysis by D.R. Cunningham & J.A Stuller, Jaico Publications