ANALYSIS OF FEEDERS OUTAGES ON THE DISTRIBUTION SYSTEM OF ZARIA TOWN

The paper is aimed at analysing the outages on the feeders of the distribution system, in Zaria Town, Kaduna State, Nigeria. The 11 kV feeders are the NNPC feeder, Gaskiya feeder, Sabon Gari feeder, NTC/RLY feeder and the Canteen feeder. The 33 kV feeders, on the other hand, are the Shika feeder, Giwa/Makarfi feeder and the Soba feeder. The analysis is based on the daily outage data collected for a period of about one year (April, 2003 to April, 2004 ? thirteen months). From these data, the type, number and duration of the outages were identified. The plots of outage distribution of the five 11 kV feeders were obtained. Their forced outages were compared as well. The outage plots of the three 33 kV feeders were also obtained and their forced outages compared. The power losses due to the feeders' outages were considered and the feeders, at each voltage level, were investigated for loss of power. The results obtained were discussed; possible reasons for the causes of the outages were presented and appropriate recommendations were proposed.