Blackburn J.L., Domin T.J. Protective relaying. Principles and applications

3rd edition - Taylor & Francis Group, LLC, 2006. - 638 p. ISBN 1-57444-716-5.
This book presents the fundamentals and basic technology of application of protective relays in electric power systems and documents the protection practices in common use. The objective is to provide a useful reference for practicing engineers and technicians as well as a practical book for college level courses in the power field. Applications with examples are included for both utility and industrial–commercial systems generally operating above 480 V.Introduction and general philosophies.
Fundamental units: per unit and percent values.
Phasers and polarity.
Symmetrical components: a review.
Relay input sources.
Protection fundamentals and basic design principles.
System-grounding principles.
Generator protection/intertie protection for distributed generation.
Transformer, reactor, and shunt capacitor protection.
Bus protection.
Motor protection.
Line protection.
Pilot protection.
Stability, re-closing, load shedding, and trip circuit design.
Microprocessor applications and substation automation.