Power System Relaying, 3rd edition covers fundamental relaying concepts, description of specific relaying concepts and circuits as well as major system devices such as current and potential transformers, transmission lines, transformers, motors and generators, generating plant auxiliary systems, buses and station configuration and equipment. Numerical examples, which clarify the text and demonstrate the philosophy underlying relay selection and settings are included, and problems representing actual power system situations are presented. Utility practices and problems worldwide are discussed, and contrasts are made between the different technologies and preferences of USA, Europe and Asia.

• Provides the student with an understanding of power protection principles and an insight into the phenomena involved.
• Features problems to be worked through at the end of each chapter
• Includes new material on power system phenomena such as stability, system protection concepts as opposed to equipment protection and a description of historic outages.
• Discusses in detail the emerging technologies of adaptive relaying, hidden failures, wide area measurement, global positioning satellites and the specific application of digital devices