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Current distribution on tower lines under fault and surge conditions

Ullah, Niamat, Griffiths, Huw, Harid, Noureddine, Haddad, Abderrahmane and Ainsley, A. 2007. Current distribution on tower lines under fault and surge conditions. Presented at: 42nd International Universities Power Engineering Conference (IUEPC2007), Brighton, UK, 42nd International Universities Power Engineering Conference. IEEE, pp. 812-817.

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Abstract

In this paper, an investigation of current distribution on tower lines under lightning and power frequency fault conditions is carried out. An equivalent circuit model of a 400 kV double-circuit transmission line was established using EMTP and two models of differing complexity were developed. The power-frequency earth fault was simulated by short circuiting one phase conductor to the earth wire while lightning conditions were simulated by injecting an impulse-type current onto the earthwire and also onto to one phase conductor. The current and potential distribution through the tower line was examined for different fault locations and the effects of soil resistivity and tower footing resistance variations were quantified.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Uncontrolled Keywords: EMTP, current distribution, double-circuit transmission line, equivalent circuit model, lightning, one phase conductor, power frequency fault conditions, power-frequency earth fault, soil resistivity, surge conditions, tower footing resistance variations, tower lines, voltage 400 kV
Publisher: IEEE
ISBN: 9781905593347
Last Modified: 07 Mar 2018 22:26
URI: http://orca.cf.ac.uk/id/eprint/23666

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