Reliability Indices of Electric Power Distribution System in Ilorin, Nigeria
Authors: Ogunbiyi O, Akomolafe T, Adesina LM
The failure probability and epileptic power supply is a pointer to the reality that there is a need for reliability studies and fault evaluation of the electric power system in Nigeria. The recent blackout faced in the country has paralyzed many activities and has destroyed many industrial processes. Therefore, it is worth considering reliability assessments as it provides an opportunity to incorporate the cost or losses incurred by the utility customer as a result of a power failure and this must be considered in planning and operating practices. The reliability assessment and estimation of indices were carried out on selected 11 kV injection substations feeders in Ilorin, Nigeria. Using the analytical method and network reduction technique, the substation reliability was analyzed based on recorded outage data. Results show the low level of reliability of power supply to customers on the feeder, the failure rate is quite on the high side and a low system average interruption frequency index was recorded on most feeders. The overall system availability shows that the system needs improvement and quick response to network failure.
Affiliations: Department of Electrical and Computer Engineering, College of Engineering and Technology, Kwara State University, PMB 1530, Ilorin, Nigeria
Keywords: Availability, Failure Probability, Feeders, Failure Rate, Reliability
Published date: 2020/06/30