Summary

The previous two editions of Power System Relaying offer comprehensive and accessible coverage of the theory and fundamentals of relaying and have been widely adopted on university and industry courses worldwide. With the third edition, the authors have added new and detailed descriptions of power system phenomena such as stability, system-wide protection concepts and discussion of historic outages. Power System Relaying, 3rd Edition continues its role as an outstanding textbook on power system protection for senior and graduate students in the field of electric power engineering and a reference book for practising relay engineers.- Provides the student with an understanding of power system protection principles and an insight into the phenomena involved.- Discusses in detail the emerging technologies of adaptive relaying, hidden failures, wide area measurement, global positioning satellites and the specific application of digital devices.- Includes relay designs such as electromechanical, solid-state and digital relays to illustrate the advantages and disadvantages of each.- Re-examines traditional equipment protection practices to include new concepts such as transmission line differential protection, load encroachment on distance relay characteristics, distributed generation systems, and techniques to improve protection system response to power system events.- Analyzes system performance through oscillographs and alarms schemes.- Features problems to be worked through at the end of each chapter.

Preface
Preface to the second edition
Preface to the first edition
Introduction to protective relaying
What is relaying?
Power system structural considerations
Power system bus configurations
The nature of relaying
Elements of a protection system
International practices
Summary
Problems
References
Relay operating principles
Introduction
Detection of faults
Relay designs
Electromechanical relays
Solid-state relays
Computer relays
Other relay design considerations
Control circuits, a beginning
Summary
Problems
References
Current and voltage transformers
Introduction
Steady-state performance of current transformers
Transient performance of current transformers
Special connections of current transformers
Linear couplers and electronic current transformers
Voltage transformers
Coupling capacitor voltage transformers
Transient performance of CCVTs
Electronic voltage transformers
Summary
Problems
References
Nonpilot overcurrent protection of transmission lines
Introduction
Fuses, sectionalizers, reclosers
Inverse, time-delay overcurrent relays
Instantaneous overcurrent relays
Directional overcurrent relays
Polarizing
Summary
Problems
References
Nonpilot distance protection of transmission lines
Introduction
Stepped distance protection
R-X diagram
Three-phase distance relays
Distance relay types
Relay operation with zero voltage
Polyphase relays
Relays for multi-terminal lines
Protection of parallel lines
Effect of transmission line compensation devices
Loadability of relays
Summary
Problems
References
Pilot protection of transmission lines
Introduction
Communication channels
Tripping versus blocking
Directional comparison blocking
Directional comparison unblocking
Underreaching transfer trip
Permissive overreaching transfer trip
Permissive underreaching transfer trip
Phase comparison relaying
Current differential
Pilot wire relaying
Multi-terminal lines
Summary
Problems
References
Rotating machinery protection
Introduction
Stator faults
Rotor faults
Unbalanced currents
Overload
Overspeed
Abnormal voltages and frequencies
Loss of excitation
Loss of synchronism
Power plant auxiliary system
Winding connections
Startup and motoring
Inadvertent energization
Torsional vibration
Sequential tripping
Summary
Problems
References
Transformer protection
Introduction
Overcurrent protection
Percentage differential protection
Causes of false differential currents
Supervised differential relays
Three-phase transformer protection
Volts-per-hertz protection
Nonelectrical protection
Protection systems for transformers
Summary
Problems
References
Bus, reactor and capacitor protection
Introduction to bus protection
Overcurrent relays
Percentage differential relays
High-impedance voltage relays
Moderately high impedance relay
Table of Contents provided by Publisher. All Rights Reserved.

Supplemental Materials

What is included with this book?

The New copy of this book will include any supplemental materials advertised. Please check the title of the book to determine if it should include any access cards, study guides, lab manuals, CDs, etc.

The Used, Rental and eBook copies of this book are not guaranteed to include any supplemental materials. Typically, only the book itself is included. This is true even if the title states it includes any access cards, study guides, lab manuals, CDs, etc.