Evaluation of reliability of power distribution components: A case study of Sagamu Substation, Ogun State

Power system especially the distribution which is closest to consumer very fundamental and important a nation’s economy development that was reason this study titled “Evaluation of reliability power components, case Sagamu Substation, Ogun State” carried out in response yawning for reliable stable supply. It indispensable find means shaping component failure contributes most unavailability, outage or interruption system, how unavailability essentially affects customers. A year outages data caused as result on each these components such Switch gears, Supply lines (11Kv),Busbar, circuit breakers, Fuses, Switches, Outgoings feeders, Over current relays, Earth fault Surge arresters, transformers e.t.c. were collected from Ibadan Electricity Distribution company (IBDEC), Substation Zone, State typified Table 1-11.The rate (f/yr) (?) transformer, switch gear, supply line (incoming),bus bars, fuses, switches, outgoing feeder, over relay, earth relay surge arrester evaluated follows 0.0059, 0.0044, 0.0011, 0.6667, 0.0007, 0.0082, 0.0000, 0.0039, 0.0003, 0.0001 0.0000 respectively others average time (hours) ,outages hours other basic indices calculated illustrated 12. Some failures also represented bar chart. This method relates theory with experience gained statistics practical knowledge maintenance. The findings work revealed fuses had highest followed by least arresters it discovered reduced during December period. approach can be applied rural urban systems. submission made powerful tool assist Engineers solving difficult complicated problems.