Computational Study of 400 kV Transmission Lines Against Lightning with Line Terminating Matrix
Citation
G.Radhika, Dr.M.Suryakalavathi "Computational Study of 400 kV Transmission Lines Against Lightning with Line Terminating Matrix", International Journal of Engineering Trends and Technology (IJETT), V50(2),85-92 August 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Abstract
The main object of this paper is to analyse
the impact of tower type (geometry of the tower)
against lightning by studying one of its major factors,
self and mutual impedances by taking geometry of the
practical 400 kV, D/c, 2 ground wire tower in
Hyderabad, Telangana, India.This paper also focuses
to present PSCAD/EMTDC based transient multiconductor
modelling of a three phase double circuit
for analysing transmission line performance during
lightning of say 100 kA, 8/20?s as well as recovery of
the string voltage at the tower with the placement of
transmission line arresters, when back flashover was
triggered into one of the phases of a chosen tower. A
comparison was made with respect to tower footing
resistance ranging from 10? to 100? by varying arc
horn gap length which is considered to be an
important factor in this model as arrester can perform
well in a high tower footing resistance area.
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DOI: 10.1049/cp.2013.2190.
Keywords
Back flashover, Double Circuit,
Transmission Line Arrester, Transmission line
Geometry, Ground Wire and PSCAD/EMTDC.