More than ninety case studies shed new light on power system phenomena & power system disturbances Based on the authors four decades of experience this book enables readers to implement systems in order to monitor & perform comprehensive analyses of power system disturbances. Most importantly readers will discover the latest strategies & techniques needed to detect & resolve problems that could lead to blackouts to ensure the smooth operation & reliability of any power system. Logically organized Disturbance Analysis for Power Systems begins with an introduction to the power system disturbance analysis function & its implementation. The book then guides readers through the causes & modes of clearing of phase & ground faults occurring within power systems as well as power system phenomena & their impact on relay system performance. The next series of chapters presents more than ninety actual case studies that demonstrate how protection systems have performed in detecting & isolating power system disturbances in: Generators Transformers Overhead transmission lines Cable transmission line feeders Circuit breaker failures Throughout these case studies actual digital fault recording (DFR) records oscillograms & numerical relay fault records are presented & analyzed to demonstrate why power system disturbances happen & how the sequence of events are deduced. The final chapter of the book is dedicated to practice problems encouraging readers to apply what theyve learned to perform their own system disturbance analyses. This book makes it possible for engineers technicians & power system operators to perform expert power system disturbance analyses using the latest tested & proven methods. Moreover the books many cases studies & practice problems make it ideal for students studying power systems.