Design Modeling and Evaluation of Protective Relays for Power Systems : (basics of protection relaying, power system fault analysis and short-circuit, protective relaying and design principles, modeling of digital relay and power system signals, design and implementation of relay communication, design and implementation of overcurrent, pilot and distance protection, design and implementation of transformer and busbar differential protection, modeling and testing digital relay, modeling and testing impedance relay, line protection system, differential relaying, protective overcurrent relaying) .