This paper discusses the problem of reliability of the Polish medium voltage power lines. It presents the benchmarking of power lines and values of SAIDI. The probability density distribution of the medium voltage lines length as well as selected indicators of the MV power lines reliability, being operated by the distribution companies under test, are also introduced. The analysis is based on the actual MV lines and uses the nonparametric method of kernel density estimation.K e y w o r d s: radial distribution network, reliability of MV line, kernel density estimation, SAIDI
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Mirosław KornATKA
AnAlysis of the exploitAtion fAilure rAte in polish MV networks
AnAlizA eksploAtAcyjnej AwAryjności krAjowych sieci średniego nApięciA*The paper presents an analysis of exploitation failure rate in MV overhead and cable lines and in MV/LV transformers in the Polish power system. The reliability analysis is carried out by means of a non-parametric method using kernel estimators. The data are obtained from power networks of various operating conditions, and because of that the weight of data is taken into consideration. Additionally, the paper offers an innovative way of presenting the reliability data in a graphic form.
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