Economical Consideration of Improving Reliability of Radial Distribution Feeders in Khartoum North Distribution Area

Abstract

In this research it's intended to reduce the number of line trips by improving the radial feeders reliability of “KHARTOUM NORTH DISTRIBUTION AREA” 11KV radial feeders which it's tripped frequently by using three scenarios.The first scenario by installing auto reclosers & sectionalizers devices in these feeders and connect these devices with SCADA system. The second scenario by removing the uninsulated conductor wires of the all radial feeders 11 KV & changing them with insulated wires 11kv. The third scenario by changing the configuration of the overhead line radial feeders to underground cable system. The distribution system, lines faults, autorecloser, sectionlizer and the smart feeder operation are defined. The comparison between the three scenarios is discussed with calculating the reliability indices by using matlab & GIS softwares.