An improved backflashover model for estimating the lightning performance of transmission lines

Ekonomou, L; Gonos, IF; Stathopulos, IA

dc.contributor.author	Ekonomou, L	en
dc.contributor.author	Gonos, IF	en
dc.contributor.author	Stathopulos, IA	en
dc.date.accessioned	2014-03-01T02:49:22Z
dc.date.available	2014-03-01T02:49:22Z
dc.date.issued	2003	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34559
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-1442302566&partnerID=40&md5=323155188057a20f59b5f113e07df68c	en
dc.subject.other	Computer program listings	en
dc.subject.other	Data reduction	en
dc.subject.other	Electric conductivity	en
dc.subject.other	Electric potential	en
dc.subject.other	Electric power systems	en
dc.subject.other	Flashover	en
dc.subject.other	Lightning	en
dc.subject.other	Meteorology	en
dc.subject.other	Soils	en
dc.subject.other	Backflashover models	en
dc.subject.other	Lighting strokes	en
dc.subject.other	Electric lines	en
dc.title	An improved backflashover model for estimating the lightning performance of transmission lines	en
heal.type	conferenceItem	en
heal.publicationDate	2003	en
heal.abstract	An improved backflashover model, which estimates the lightning performance of high voltage overhead transmission lines using Monte Carlo statistical technique, is presented based upon a previous study. In contrast to the earlier approach in which only mean values of design characteristics and meteorological data were considered, this method takes into consideration the characteristics of each one individual tower of the transmission line and the exact meteorological conditions for the particular geographic region where each one tower is located. Furthermore it gives the opportunity to use in the calculations, either the measured footing resistance of each tower, or to estimate the tower footing resistance by providing the resistivity of soil and the geometric characteristics of the grounding system. The improved method coded as a Visual Basic computer program, has been applied, on several operating Hellenic transmission lines, with different geometrical and geographical characteristics, showing much greater accuracy than this which has been shown using the earlier approach and results almost identical to the field observation data. The proposed method can be used as a useful tool in the design of electric power systems, aiding in a more effective protection of them against lightning strokes.	en
heal.journalName	Proceedings of the Universities Power Engineering Conference	en
dc.identifier.volume	38	en
dc.identifier.spage	586	en
dc.identifier.epage	589	en