Power System Protection and Switchgear

This book will serve as an ideal text for courses on power system protection and switchgear at undergraduate adn post-graduate levels. It will also be very useful to students to students to students preparing for professional examinations as well as to practising engineers engaged in system protection work. Key Features: Incorporates contemporary developments like SF vacuum, oil and air-blast circuit breakers. Indepth coverage of electromagnetic, static and micro-processor-based relays. Explores the concepts of microprocessor-based protection through interfacing circuits alongwith the relevant assembly language programs. Discusses various microprocessors, programmable peripheral interface, analog to digital converters, sample and hold circuits, programmable interval timer and a number of important circuits using operational amplifiers. Extensively covers different types of overcurrent and distance relays, carrier current protection; carrier acceleration and intertripping, and protection of alternators, transformers, motors and bus bars. Features advanced topics such as Fast Fourier Transform, Walsh function,Haar function and extends their application to distance relay characterstics using microcomputers. About the Author: D Vishwakarma D N VISHWAKARMA is presently Associate Professor is the Department of Electrical Engineering at the Institute of technology, Banaras Hindu University, Varansi. He had earlier served as a lecturer in Electrical Engineering at the Bihar College Of Engineering,Patna. Ram Badri Badri Ram is currently Professor, Department of Electrical Engineering, Bihar College of Engineering,Patna. He obtained his M Tech in power system Engineering from the Indian Institute of Science, Banglore. A Ph D from Patna University, he has a teaching and research experience of over 25 years. He was award