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Lightning performance of a real distribution network with focus on transformer protection

TitleLightning performance of a real distribution network with focus on transformer protection
Publication TypeJournal Article
Year of Publication2016
AuthorsNapolitano, F., F. Tossani, A. Borghetti, C. A. Nucci, M. L. B. Martinez, G. P. Lopes, G. D. J. G. Santos, and D. R. Fagundes
JournalElectr. Power Syst. Res.
Volume139
Pagination60-67
Date PublishedOctober
ISSN03787796
Keywordsdistribution networks, Lightning induced voltages, lightning protection, Mean time between failures (MTBF), Monte Carlo method
Abstract

The paper applies a Monte Carlo procedure to evaluate the lightning performance of a real medium-voltage distribution network, which includes a number of lines, transformer stations and surge protection devices. Such a procedure allows inferring the characteristics of the statistical distributions of lightning-originated voltages at any point and at any phase of the network. The analysis presented in this paper aims at assessing the expected mean time between failures of MV/LV transformers caused by both direct and indirect lightning strikes. A heuristic technique has been specifically developed to reduce the computational effort despite the non-linear response of the network equipped with surge arresters.

URLhttp://www.sciencedirect.com/science/article/pii/S0378779615003521
DOI10.1016/j.epsr.2015.11.019