Influence of Ground Conductivity on the Over Voltages Induced on Overhead Power Distribution Lines due to an Indirect Lightning Stroke

Kannu, Durai P and Joy, Thomas M (2000) Influence of Ground Conductivity on the Over Voltages Induced on Overhead Power Distribution Lines due to an Indirect Lightning Stroke. In: IEEE International Symposium on Electromagnetic Compatibility, 2000, 21-25 August, Washington,DC, Vol.2, 949 -954.

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Abstract

Computation of induced voltage on an overhead line due to an indirect lightning stroke involves calculation of electric field due to the lightning stroke as well as its coupling with the overhead line. The ground conductivity influences both the electric field as well as the coupling mechanism and hence the magnitude and waveshape of the induced voltage. In this paper, lightning induced voltages are calculated for 33 kV, $3\phi$ single circuit and double circuit overhead power distribution lines. It has been observed that the magnitude and wave shape of the induced voltage is influenced by the finite ground conductivity as well as the number of overhead conductors in a multiconductor system.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright 1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Department/Centre:	Division of Electrical Sciences > High Voltage Engineering (merged with EE)
Date Deposited:	28 Feb 2006
Last Modified:	19 Sep 2010 04:24
URI:	http://eprints.iisc.ac.in/id/eprint/5729

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