FAULT CURRENT MITIGATION AND ELIMINATION IN HIGH VOLTAGE TRANSMISSION LINE WITH PSB, OST AND FCL UNIT

Contingency analysis of any grid involves finding out the behavior of the ability System once applying to disturbance or any abnormalcy. This project involves the study of ways to find Power Swing on a line and verification of ways to find Power Swing supported rate of amendment in electrical resistance. Here, package is needed for such analysis as a result of in sensible cases networks area unit terribly difficult and for an equivalent system, modeling the complete element in line with real system facilitates easier approach to check an equivalent network while not imposing it to sensible condition. therefore to keep up system stability such contingency analysis plays very important role. a 3 space grid model is meant in SIMULINK package and simulated information is employed for analysis during this paper. electrical resistance seen by Distance Relay enters zone that is about usually ninetieth of line electrical resistance inside one-cycle and it'll be virtually stable at electrical resistance adequate fault electrical resistance seen by relay. Whereas just in case of Power Swing electrical resistance changes slowly and takes old to enter zone settings. So, exploitation this technique, we are able to find Fault inside one -cycle. If electrical resistance is ever-changing slowly, we are able to block relay from operation.