Reliability Assessment of APO 132/33 KV Electric Transmission Substation Abuja
Journal Title: American journal of Engineering Research - Year 2017, Vol 6, Issue 8
Abstract
This study investigate the reliability assessment of Apo 132/33kV Transmission substation, AbujaNigeriato provide adequate electrical supply to its customers as economically as possible with reasonable level of reliability. The system reliability impact data on statistical information were classified as unscheduled (forced) and scheduled(planned)maintenance outages on each feeder were collected from January to December, 2015 as documented in the daily logbooks. The data wereused to compute and analyzed the reliability indices using Microsoft and Excel package with respect to customer orientation indices of SAIFI, SAIDI, CAIDI, and ASAI using equations 1 to 4. The results shows thatunscheduled (forced) outages reliability indices for H3, H13 and H15 feeders for average service availability index (ASAI) were 0.9935, 0.9935, and 0.996; while consumer average interruption duration index (CAIDI) were 3.48, 3.7, and 2.368 respectively. The maximum CAIDI was recorded on feeder H13 in the month of October with interruption duration of 3 hours and 42 minutes. The maximum system average interruption duration index (SAIDI),recorded 17.193, 13.49, and 9.875 with the highest in June on feeder H3 and 13 hours 33 minutes. Also the maximum system average interruption frequency index (SAIFI), for the corresponding feeder’s were7.6, 6.0, and 5.7 respectively. The results of planned outages system reliability for the same feeders were also analyzed and presented.
Authors and Affiliations
Aibangbee, J. O. 1 ,, Ckukwuemeka, I. N. 2
Keywords
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