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Type: Artigo de periódico
Title: Influence Of Earth's Conductivity And Permittivity Frequency Dependence On Overhead Transmission Lines: Analysis For The One - Conductor Case [influência Da Dependência De Parâmetros Do Solo Com A Frequência Na Modelagem De Linhas Aéreas De Transmissão: Caso De Condutor único]
Author: Gertrudes J.B.
Tavares M.C.
Portela C.
Abstract: In this paper the influence of earth's conductivity and permittivity frequency dependence are evaluated when calculating transversal and longitudinal transmission lines' parameters. The aim is to compare results calculated from the complex plane method and Carson's modified expressions on longitudinal parameters and also between Carson's modified potential-coefficient correction factors and results from approximations methods for transversal admittance parameters. The importance of properly considering the frequency-dependent soil model is presented for oneconductor case, in order to compare the longitudinal and transversal parameters considering the earth's conductivity and permittivity frequency dependence soil model in relation to the common soil representation with a constant conductivity and a permittivity that can be neglected assuming a low frequency approximation.
Rights: aberto
Identifier DOI: 
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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