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The Relay Testing Handbook: Principles and Practice

Professional EngineerJourneyman Power System ElectricianElectrical Engineering TechnologistThe Relay Testing HandbookPrinciples and PracticeixTable of ContentsAuthor s Note vAcknowledgments viiChapter 1: Electrical Fundamentals 11. The three -Phase Electrical System 12. transformers 273. Instrument transformers 344. Fault Types 405. Grounding 476. Sequence Components 527. Fault Types and Sequence Components 58 Chapter 2: Introduction to Protective Relays 651. What are Protective Relays? 652. Time Coordination Cur ves (TCC) and Coordination 73 Chapter 3: A Brief Histor y of Protective Relays 831.

The Three-Phase Electrical System 1 2. Transformers 27 3. Instrument Transformers 34 4. Fault Types 40 ... Open Corner Delta Ground Detector 50 Figure 1-64: Open Corner Delta Normal Phasors 51 ... 3-Phase Relay Input Connection Using Two Sources 98 Figure 4-2: Steady State Pickup Testing 102

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