THREE PHASE SYMMETRICAL AND ASYMMETRICAL FAULT DETECTION IN TRANSMISSION LINES

A key problem in power transmission lines is Transmission line protection because 85-87 percentage of disturbancesin power system are occurred in transmission lines. To protect the equipment, fast fault detection is needed. Theexact fault location can help service man to remove persistent of the faults, thus reducing the occurrence of fault andminimize the time of power outages. The work is intended to detect fault in transmission line by monitoringcontinuously. By placing the conducting wire inside the loop of the current transformer, the current will be sensedand is given to the protective circuit to avoid the high current. Exact fault location can be identified by using the datatransferred through mobile phone and desktop using the GPS. In this work matlab simulation is done to determineLine to Ground fault, Line to line fault, Double Line to Ground fault and Triple line fault for overheadtransmission line