MODELING OF OVERHEAD TRANSMISSION LINES FOR LIGHTNING OVERVOLTAGE CALCULATIONS

Several parts of an overhead transmission line have to be included in a model adequate for lightning overvoltage studies: wires (shield wires and phase conductors), towers, grounding, insulator strings and air clearances. An additional component, the surge arrester, should be added if the study is a...

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Autores principales:	Martínez-Velasco,Juan A, Castro-Aranda,Ferley
Lenguaje:	English
Publicado:	Universidad de Tarapacá. 2010
Materias:	Overvoltage lightning modeling simulation overhead transmission line insulator surge arrester grounding parametric analysis EMTP
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052010000100013
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spelling	oai:scielo:S0718-330520100001000132010-06-14MODELING OF OVERHEAD TRANSMISSION LINES FOR LIGHTNING OVERVOLTAGE CALCULATIONSMartínez-Velasco,Juan ACastro-Aranda,Ferley Overvoltage lightning modeling simulation overhead transmission line insulator surge arrester grounding parametric analysis EMTP Several parts of an overhead transmission line have to be included in a model adequate for lightning overvoltage studies: wires (shield wires and phase conductors), towers, grounding, insulator strings and air clearances. An additional component, the surge arrester, should be added if the study is aimed at determining the lightning performance of a transmission line protected by surge arresters. This latter aspect is important since it can affect the model to be used for representing some parts of the line. Lightning is a physical phenomenon of random nature. The calculation of the lightning flashover rate must be performed taking into account this aspect, as well as the random behavior of some line component; e.g., insulator strings. The aim of this paper is twofold: on one hand, it presents a discussion about modeling guidelines proposed to date for representing overhead transmission lines in lightning studies; on the other hand, it proposes a methodology for selecting the most adequate model of an overhead transmission line in lightning overvoltage calculations, when using a time-domain simulation tool, e.g. an EMTP-like tool. This methodology is applied to a test transmission line.info:eu-repo/semantics/openAccessUniversidad de Tarapacá.Ingeniare. Revista chilena de ingeniería v.18 n.1 20102010-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052010000100013en10.4067/S0718-33052010000100013
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Overvoltage lightning modeling simulation overhead transmission line insulator surge arrester grounding parametric analysis EMTP
spellingShingle	Overvoltage lightning modeling simulation overhead transmission line insulator surge arrester grounding parametric analysis EMTP Martínez-Velasco,Juan A Castro-Aranda,Ferley MODELING OF OVERHEAD TRANSMISSION LINES FOR LIGHTNING OVERVOLTAGE CALCULATIONS
description	Several parts of an overhead transmission line have to be included in a model adequate for lightning overvoltage studies: wires (shield wires and phase conductors), towers, grounding, insulator strings and air clearances. An additional component, the surge arrester, should be added if the study is aimed at determining the lightning performance of a transmission line protected by surge arresters. This latter aspect is important since it can affect the model to be used for representing some parts of the line. Lightning is a physical phenomenon of random nature. The calculation of the lightning flashover rate must be performed taking into account this aspect, as well as the random behavior of some line component; e.g., insulator strings. The aim of this paper is twofold: on one hand, it presents a discussion about modeling guidelines proposed to date for representing overhead transmission lines in lightning studies; on the other hand, it proposes a methodology for selecting the most adequate model of an overhead transmission line in lightning overvoltage calculations, when using a time-domain simulation tool, e.g. an EMTP-like tool. This methodology is applied to a test transmission line.
author	Martínez-Velasco,Juan A Castro-Aranda,Ferley
author_facet	Martínez-Velasco,Juan A Castro-Aranda,Ferley
author_sort	Martínez-Velasco,Juan A
title	MODELING OF OVERHEAD TRANSMISSION LINES FOR LIGHTNING OVERVOLTAGE CALCULATIONS
title_short	MODELING OF OVERHEAD TRANSMISSION LINES FOR LIGHTNING OVERVOLTAGE CALCULATIONS
title_full	MODELING OF OVERHEAD TRANSMISSION LINES FOR LIGHTNING OVERVOLTAGE CALCULATIONS
title_fullStr	MODELING OF OVERHEAD TRANSMISSION LINES FOR LIGHTNING OVERVOLTAGE CALCULATIONS
title_full_unstemmed	MODELING OF OVERHEAD TRANSMISSION LINES FOR LIGHTNING OVERVOLTAGE CALCULATIONS
title_sort	modeling of overhead transmission lines for lightning overvoltage calculations
publisher	Universidad de Tarapacá.
publishDate	2010
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052010000100013
work_keys_str_mv	AT martinezvelascojuana modelingofoverheadtransmissionlinesforlightningovervoltagecalculations AT castroarandaferley modelingofoverheadtransmissionlinesforlightningovervoltagecalculations
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MODELING OF OVERHEAD TRANSMISSION LINES FOR LIGHTNING OVERVOLTAGE CALCULATIONS

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