Power System Protection And Switchgear

Table of contents
1. Introduction 2. Operating Principles and Relay Construction 3. Overcurrent Protection 4. Distance Protection 5. Pilot Relaying Schemes 6. AC Machines and Bus-zone Protection 7. Microprocessor and Interfacing 8. Microprocessor-based Protective Relays 9. Circuit Breakers 10. Fuses 11. Protection against Overvoltages

New Features

Incorporates contemporary developments like SF6, vacuum, oil and air-blast circuit breakers. Indepth coverage of electromagnetic, static and microprocessor-based relays. Explores the concept of microprocessor-based protection through interfacing circuits along with 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 bands.Features advanced topics such as fast Fourier transform, Walsh function, Haar function and extends their application to distance relay characteristics using microcomputers.