Course Details

Subject {L-T-P / C} : EE6202 : Power System Protection {3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Ananyo Sengupta


Introduction to computer relaying: computer relay architecture, analog-to-digital converters, anti-aliasing filters, expected benefits of computer relaying Brief review of power system protection schemes: Introduction to protection systems, function of protection system, protection of transmission lines, overcurrent relays, directional relays, distance relays, pilot relaying, transformer, reactor and generator protection, bus protection Mathematical basis for protective relaying algorithms: Fourier series, Walsh functions, Fourier transforms, probability and random process, Kalman filtering Transmission line relaying: relaying as parameter estimation, fault classification, symmetrical component distance relay, Wavelet application, protection of series compensated lines Protection of transformer, machines and buses: power transformer algorithms, generator protection, motor protection, digital bus protection System relaying and control: measurement of frequency and phase, application to Phasor measurement to state estimation, monitoring of power system, control application Relaying application of traveling wave: traveling wave on single phase and three phase lines, directional wave relay, traveling wave distance relay, determination of fault location Wide area measurement application: adaptive relaying, wide area measurement system (WAMS), protection based on WAMS.

Course Objectives

  1. To understand different techniques of digital relaying - their constructions, working principles, applications and limitations along with introduction to Wide Area Measurement System and network protection.

Course Outcomes

CO1: At the end of the course, student will get thorough understanding on protection system schemes, its co-ordination and settings for any general power network.
CO2: Students will get an exposure on digital relaying, its fundamentals, attributes and implementation.
CO3: Student will have understanding on synchro-phasor based power system relaying.
CO4: Students will get exposure on power system monitoring using wide area measurement system.

Essential Reading

  1. Arun G. Phadke, James S. Thorp, Computer Relaying for Power Systems, Wiley
  2. Allan Thomas Johns, S.K. Salman, Digital Protection for Power Systems, The Institution of Engineering and Technology

Supplementary Reading

  1. A.G. Phadke, J.S. Thorp, Synchronized Phasor Measurements and Their Applications, Springer
  2. Walter A. Elmore, 'Protective Relaying: Theory and Applications, CRC Press