Assessment of surge arrester failure rate and application studies in Hellenic high voltage transmission lines

Christodoulou, CA; Ekonomou, L; Fotis, GP; Gonos, IF; Stathopulos, IA

dc.contributor.author	Christodoulou, CA	en
dc.contributor.author	Ekonomou, L	en
dc.contributor.author	Fotis, GP	en
dc.contributor.author	Gonos, IF	en
dc.contributor.author	Stathopulos, IA	en
dc.date.accessioned	2014-03-01T01:32:52Z
dc.date.available	2014-03-01T01:32:52Z
dc.date.issued	2010	en
dc.identifier.issn	0378-7796	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20233
dc.subject	Backflashover	en
dc.subject	Ground flash density	en
dc.subject	Lightning performance	en
dc.subject	Lightning protection	en
dc.subject	Optical transient density	en
dc.subject	Overhead transmission lines	en
dc.subject	Shielding failures	en
dc.subject	Surge arresters	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Backflashover	en
dc.subject.other	Ground flash	en
dc.subject.other	Lightning performance	en
dc.subject.other	Optical transient	en
dc.subject.other	Overhead transmission lines	en
dc.subject.other	Shielding failure	en
dc.subject.other	Surge arresters	en
dc.subject.other	Bandpass filters	en
dc.subject.other	Cost reduction	en
dc.subject.other	Electric lines	en
dc.subject.other	Electric power system protection	en
dc.subject.other	Light transmission	en
dc.subject.other	Lightning	en
dc.subject.other	Lightning arresters	en
dc.subject.other	Lightning protection	en
dc.subject.other	Shielding	en
dc.subject.other	Simulators	en
dc.subject.other	Surge protection	en
dc.subject.other	Transmission line theory	en
dc.subject.other	Electric surges	en
dc.title	Assessment of surge arrester failure rate and application studies in Hellenic high voltage transmission lines	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.epsr.2009.08.018	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.epsr.2009.08.018	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	The use of transmission line surge arresters to improve the lightning performance of transmission lines is becoming more common. Especially in areas with high soil resistivity and ground flash density, surge arresters constitute the most effective protection mean. In this paper a methodology for assessing the surge arrester failure rate based on the electrogeometrical model is presented. Critical currents that exceed arresters rated energy stress were estimated by the use of a simulation tool. The methodology is applied on operating Hellenic transmission lines of 150 kV. Several case studies are analyzed by installing Surge arresters on different intervals, in relation to the region's tower footing resistance and the ground flash density. The obtained results are compared with real records of outage rate showing the effectiveness of the surge arresters in the reduction of the recorded failure rate. The presented methodology can be proved valuable to the studies of electric power systems designers intending in a more effective lightning protection, reducing the operational costs and providing continuity of service. (C) 2009 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE SA	en
heal.journalName	Electric Power Systems Research	en
dc.identifier.doi	10.1016/j.epsr.2009.08.018	en
dc.identifier.isi	ISI:000273866900005	en
dc.identifier.volume	80	en
dc.identifier.issue	2	en
dc.identifier.spage	176	en
dc.identifier.epage	183	en