Fault analysis and prediction of power distribution networks on 11kV Feeders: A case study of Eleweeran and Poly Road 11kV Feeders, Abeokuta

Distribution system, a vital link between the bulk power system and end users, accounts for 90% of power service interruptions. This study analyses faults occurring on power distribution network using Eleweeran and Poly Road 11 kV feeders in Abeokuta as case studies. Faults data, between 2014 and 2018, are collected for selected feeders using fault log books. Trend analysis of faults data is accomplished using MATLAB software with associated statistical measures (mean median mode, standard deviation, coefficient of correlation) determined. Reliability figure is thereafter computed for each of the two feeders. The mean and median of both actual and predicted fault values during the period under consideration are similar for the two feeders. The reliability index on Eleweeran 11 kV feeders showed that 2015 was the worst with failure rate of 1.55 and reliability figure of 0.21% while it was at its best in 2017 (failure rate of 1.07 and reliability of 0.34%). In the case of Poly Road 11 kV feeder, the highest failure rate of 0.62 with corresponding reliability of 0.54% was recorded in 2016 while in 2018 the failure rate was about 0.49 and reliability of 0.61%.

Kaynakça

[1]. Jorge S. “Analysis of Power Systems under Fault Conditions,” M.Sc. Dissertation, Electrical and Electronic Engineering, California State University, Sacramento, (2011).

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[3]. Tempa D. “Reliability Assessment of Distribution Systems - Including a case study on Wangdue Distribution System in Bhutan,” M.Sc. Dissertation, Department of Electrical Power Engineering, Norwegian University of Science and Technology, Oslo, (2009).

[4]. Nasser T. Power Systems Modelling and Fault Analysis, 2nd ed., Academic Press, Elsevier, (2019).

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Kaynak Göster

  • ISSN: 1694-7398
  • Yayın Aralığı: Yılda 2 Sayı
  • Başlangıç: 2001

320 69

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