The book offers a blend of application practices and theoretical concepts to comprehend the subject of power system protection. Theoretical support and mathematical background is given in the text to support key concepts. It provides an insight into the philosophy and requirements of relaying systems. The fundamentals and protective schemes for Generator, Transformer, Transmission Lines, Bus Zone and Induction Motor are discussed in detail in the book. Digital relays are introduced in the book for up to date coverage. Numerous solved examples, practice questions and objective type questions are given in the book for easy understanding of topics.