Reliability Improvement of Power Distribution System using Auto recloser Case Study: Bedele Power Distribution System

Abstract

in this paper, the specific protection device for Reliability Improvement options has been identified for this case study.Reliability performance of existing distribution network with and without protection devices has been evaluated. The economic impact of power interruption to utility and Brewery Factory estimated. The collected interruption data analyzed and reliability of existing power distribution system is assessed. Power distribution system with protection device along the feeder evaluated using ETAP software. Comparing scenarios using reliability performance and protection coordination simplicity best scenario is selected. The simulation of the power distribution models shows that the application of reclosers can improve the reliability of the overall system from 47% to 83%. The study will be useful for power distribution system planners, load forecasting and decision makers since it presents a concern on how much demand is available at each section of power distribution system and reliability performance of each section can beevaluated easily. By minimizing unsold electrical energy EEU will benefits the corporation to earn more profit.