Application of Static Transfer Switch for Feeder Reconfiguration to Improve Voltage at Critical Locations

The main objective of this work was to assess and evaluate the performance of static transfer switch (STS) for feeder reconfiguration. Two particular network feeders namely preferred and alternate were selected for simulation studies. Both feeders belong to IESCO system (Islamabad Electric Supply Company, Pakistan). The sensitive loads are fed by preferred feeder but in case of disturbances, the loads are transferred to alternate feeder. Different simulation cases were performed for optimum installation of STS to obtain the required voltage quality. The simulations are performed using the PSCAD/EMTDC package