Cálculo de tensões induzidas em linhas de transmissão com catenárias: análise através do método das diferenças finitas não-ortogonal (Calculation of induced voltages on curved overhead transmission lines: analysis by using the non-orthogonal finite difference method)

Rodrigo Lisbôa Pereira (rlp@ufpa.br), Adolfo Francesco de Oliveira Colares (adolfo@ufpa.br), Rodrigo Melo Silva de Oliveira (rmso@ufpa.br), Carlos Leonidas da Silva Souza (leonidas@ufpa.br), Marcus Rodrigo Veríssimo Maia (rodrigovmaia@hotmail.com)


Universidade Federal do Pará
This paper appears in: Revista IEEE América Latina

Publication Date: Sept. 2012
Volume: 10,   Issue: 5 
ISSN: 1548-0992


Abstract:
It is carried out a study regarding the catenaries of the lines of a three-phase transmission system with its neutral conductor grounded at two points. It is investigated the effect of electromagnetic field impinging on such transmission lines (due to lightning currents) by performing the calculation of induced voltages on the conductors. The numerical solution of Maxwell's equations is obtained by using the non-orthogonal finite-difference time-domain method.

Index Terms:
catenaries, induced voltages, lightning, LN-FDTD method, power transmission lines.   


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