Modeling an Overcurrent Relay Protection and Coordination in a Power System Network Using PSCAD Software
This paper presents a study on the modeling of 132/33/11kV Hutan Melintang network, Teluk Intan, Perak radial distribution feeder. The study proposed a protection scheme by providing the appropriate relay Pickup current/Plug Setting (PS) and Time Multiplier Setting (TMS)/ time dial setting (TDS) for discrimination process. For this study, the IEEE std. C37.112 moderately inverse IDMT curve characteristic is chosen for the simulation using the Power System Computer Aided Design (PSCAD). The result shows that the calculated PS and TMS are closely matched with the simulation result and therefore confirmed that these values were trustworthy.
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