Course Details
Subject {L-T-P / C} : EE6204 : Transients in Power System { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Pravat Kumar Ray
Syllabus
Module-I (8 Hr.)
Transients in a transmission line: Travelling waves in transmission line, wave equations for voltage and current, characteristic impedance of transmission line from wave equations, special cases of transmission line, input impedance, standing wave ratio, reflection co-efficient and input power of transmission line
Module-II (6 Hr.)
Transmission line as circuit elements. Fault Analysis: Short circuit on a Synchronous machine on no load, Short circuit on a loaded Synchronous machine, Short circuit current computation through Thevenin’s Theorem, Ratings of Circuit Breaker, Methods of locating limiting reactor
Module-III (6 Hr.)
Circuit Breaking Transients: Restriking voltage, Rate of Rise of Restriking Voltage, Effect of power factor of circuit on Restriking voltage, Current chopping, capacitive current breaking, Resistance Switching
Module-IV (8 Hr.)
Short circuit analysis of large system, Z-bus building algorithm, Symmetrical components, Unsymmetrical fault analysis using Symmetrical components, open conductor fault analysis
Module-V (4 Hr.)
Transients in Grounding System: Resonant grounding, Methods of neutral grounding, Harmonic Suppressor
Module-VI (4 Hr.)
Lightning Transient: Mechanism of Lightning discharge, Types of Lightning strokes, Protection against Lightning surges
Module-VII (6 Hr.)
Multi-Machine Transient Stability, Reduced admittance matrix for pre fault, during fault and post fault conditions, Power angle characteristics for different fault conditions. Transients in Renewables Integrated Microgrid with Composite Energy Storage devices
Course Objectives
- Develop a basic idea regarding transients in transmission lines and in electrical machines
- Develop a basic understanding of the transient effect of lightning, faults, and switching on power systems.
- Provide a basic understanding of the principles used to protect power system equipment from transients.
Course Outcomes
At the end of the course, students will be able to <br />1. Understand about concept of travelling waves, wave equations and different special cases of transmission line. <br />2. know about transients during different fault conditions in power system <br />3. Understand about switching surge studies across circuit breaker terminals <br />4. Calculate short circuit current in a large power system as well as analyse unsymmetrical faults <br />5. Understand about transients in grounding system as well as mechanism of lightning discharge <br />6. Able to analyze transient stability of multi machine system and transient analysis in Microgrid with energy storage devices
Essential Reading
- Allan Greenwood, Electrical Transients in Power System, John Wiley & Sons , 2001
- L. V. D. Sluis, Transients in Power Systems, John Wiley , 2001
Supplementary Reading
- C. S. Indulkar and D. P. Kothari, Power System Transients – A Statistical Approach, Prentice Hall of India , 2003
- P. Chowdhuri, Electromagnetic Transients in Power Systems, Research Studies Press , 2014