OPTIMAL LINE, SEPARATION Ill POWER DISTRIBUTION- SYSTEM

Abstract

The electricity being an important element for the growth in industrial and business development, the consumer expectations for quality and uninterrupted supply have gone up. With increasing pace of liberalization , particularly the private company's participation in the power sector, the electricity will no more be a monopoly. With a goal of reliable and good quality electrical power supply, no, utility can afford absence of a good automation system to monitor and control the distribution network. Thus to cope with the increasing demand for electrical energy together with its quality and reliability, adequate transmission and distribution facilities need to be built up. Apart from this, the system is to be continuously monitored to ensure reliable and, uninterrupted power. The distribution automation system (DAS) is being extensively employed now-a-days in which a lot of sensors are placed in the power distribution system. These sensors communicate the system status very fast to the central computer station so that corrective measures could be taken. One of the most important functions of DAS is to reconfigure the feeder for service restoration in case of fault in a particular feeder. The present study deals with the most economical arrangement that should be made for service restoration in a radial distribution system when particular feeder develops a fault. Due to the low first cost and simplicity, power distribution networks are ordinarily radial in nature except in case where bulk load is to be supplied. The radial network consists of a straightforward circuit arrangement with single path from the distribution substation making switching and relaying scheme very simple.