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Indirect lightning performance of a real distribution network with focus on transformer protection

TitleIndirect lightning performance of a real distribution network with focus on transformer protection
Publication TypeConference Paper
Year of Publication2014
AuthorsBorghetti, A., F. Napolitano, C. A. Nucci, F. Tossani, G. J. G. Dos Santos, D. R. Fagundes, G. P. Lopes, and M. L. B. Martinez
Conference Name2014 International Conference on Lightning Protection, ICLP 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN Number9781479935444
KeywordsElectric power distribution, Heuristic methods, Heuristic techniques, Induced voltages, Lightning induced voltage, lightning protection, Mean time between failures, Medium-voltage distribution networks, Monte Carlo methods, Monte Carlo procedures, MTBF, Surge protection, Surge protection devices, Transformer protection
Abstract

The paper applies the Monte Carlo procedure proposed by the Authors to evaluate the indirect lightning performance of a real medium-voltage distribution network, which includes feeders and laterals, poles, secondary substations and surge protection devices. Such a procedure allows inferring the amplitude of lightning-induced voltages at any point and any phase of the network. The analysis presented in this paper aims at assessing the expected mean time between failures of each MV/LV transformer caused by indirect lightning strikes. A heuristic technique has been specifically developed to reduce the computational effort despite the non-linear response of the network enhanced by the presence of surge arresters.

URLhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84919816095&partnerID=40&md5=70890b953370348bf76442cd1946ded3
DOI10.1109/ICLP.2014.6973437