This book deals with the study and analysis of different types of faults occurring on electrical power system network. There are different fault detection techniques are available to detect whether a fault has been occurred in power system or not. But there are no special methods are available to detect the fault type and location. So, here in this book a thyristor based fault detection technique is presented to detect the type of fault as well as location of the fault. MATLAB analysis and results are also presented for clear understanding of the reader.