Please use this identifier to cite or link to this item: http://ena.lp.edu.ua:8080/handle/ntb/40746
Title: Probabilistic evaluation of lightning-protection in overhead transmission lines
Authors: Binkevych, Taras
Affiliation: Lviv Polytechnic National University
Bibliographic description (Ukraine): Binkevych T. Probabilistic evaluation of lightning-protection in overhead transmission lines / Taras Binkevych // Litteris et Artibus : proceedings of the 6th International youth science forum, November 24–26, 2016, Lviv, Ukraine / Lviv Polytechnic National University. – Lviv : Lviv Polytechnic Publishing House, 2016. – P. 191–192. – Bibliography: 9 titles.
Conference/Event: Litteris et Artibus
Issue Date: 2016
Publisher: Lviv Polytechnic Publishing House
Country (code): UA
Place of the edition/event: Lviv
Keywords: lightning protection
the transmission line
overstrain
dangerous curve parameters
volt-second characteristic
Number of pages: 191-192
Abstract: Traditionally, insulation coordination of power system apparatus relies on deterministic approaches where some conservative voltage stresses are defined and the insulation levels are then adjusted using protective ratios and margins. In the case of lightning stresses, this could easily lead to overinsulation or overdesign and subsequently to an increase in the cost of equipment. On the other hand, insufficient insulation could lead to power system failures with disastrous technical and economic consequences. In this paper we present a formalized method for predicting the lightning-related failure rate of power system equipment. In the probabilistic approach to insulation coordination of power system apparatus we quantify the expected risk of failure under lightning stresses to enable an economically optimized design.
URI: http://ena.lp.edu.ua:8080/handle/ntb/40746
References (International): [1] Insulation Coordination Application Guide, IEC 71-2 (1996). [2] A.H-S. Ang and W.H. Tang, Probability Concepts in Engineering Planning and Design, Wiley Publ., 1975. [3] R. Lambert, E. Tarasiewicz, A. Xemard and G. Fleury, “Probabilistic Evaluation of Lightning-Related Failure Rate of Power System Apparatus”, IEEE Trans. on power delivery, Vol. 18(2), pp.579-586, 2003. [4] Protection against lightning. P.2 – Risk management for structures and services, IEC 62305-2 (2006). [5] V. Cooray, Lightning Protection, Institution of Engineering and Technology Publ., 2010. [6] M.S. Savic, “Estimation of the surge arrester outage rate caused by lightning overvoltages”, IEEE Trans. on power delivery, Vol. 20(1), pp.116–122, 2005. [7] R. Shariatinasab, F.Ajri and H. Daman-Khorshid, Probabilistic evaluation of failure risk of transmission line surge arresters caused by lightning flash, IET Generation, Transmission & Distribution Publ., 2013. [8] W.A. Chisholm and J.G. Anderson, Lightning and Grounding. EPRI AC Transmission Line Reference Book – 200 kV and Above (3 ed.), EPRI Publ., 2005. [9] I.V. Lishchak “Otsinka nadiinosti skhem hrozozakhystu povitrianykh linii elektroperesylannia” [“Evaluation of reliability of lightning protection circuit overhead lines of electric transmission”], Visnyk NU“LP”: Elektroenerhetychni ta elektromekhanichni systemy – Bulletin of LPNU: Electroenergetics and electromechanics systems, no.785, pp.39-45, 2014.
Content type: Conference Abstract
Appears in Collections:Litteris et Artibus. – 2016 р.

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