Computing Tower-Footing Grounding Impedance and GPR curves of Grounding Electrodes Buried in Multilayer Soils

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dc.contributor.authorAraujo, Anderson R. J. de [UNESP]
dc.contributor.authorColqui, Jaimis S. L. [UNESP]
dc.contributor.authorKurokawa, Sergio [UNESP]
dc.contributor.authorSeixas, Claudiner M.
dc.contributor.authorKordi, Behzad
dc.contributor.authorIEEE
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionFed Inst Sao Paulo
dc.contributor.institutionUniv Manitoba
dc.date.accessioned2020-12-10T19:59:08Z
dc.date.available2020-12-10T19:59:08Z
dc.date.issued2019-01-01
dc.description.abstractGrounding systems are essential to dissipate fault currents into soil to guarantee safe conditions to personnel and equipment. In this context, several approaches have been employed to calculate tower-footing grounding impedance either in the frequency or time domain. In the Transmission Line Model (TLM), vertical or horizontal electrodes are represented by distributed parameters along its length. and its impedance are calculate by analytical equations. However, for counterpoise electrodes there are no analytical formulae to estimate its tower-footing grounding impedance. To tackle this issue, numerical methods have been employed to assess the tower-footing grounding impedance in any various arrangements. In this article, a comparison between the grounding impedance obtained by the TLM and numerical Method of Moments (MoM) is carried out in order to verify the accuracy of the numerical method. Then, grounding impedances of counterpoise electrodes and the Grounding Potential Rising (GPR) are calculated for different configurations of a multi-layer soil. It can be noted that grounding impedance of counterpoise electrodes as well as the peaks of the GPR curves are strongly modified by the presence of multi-layer soil and electrode length.en
dc.description.affiliationSao Paulo State Univ, Dept Elect Engn, Ilha Solteira, Brazil
dc.description.affiliationFed Inst Sao Paulo, Votuporanga, SP, Brazil
dc.description.affiliationUniv Manitoba, Dept Elect & Comp Engn, Winnipeg, MB, Canada
dc.description.affiliationUnespSao Paulo State Univ, Dept Elect Engn, Ilha Solteira, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCAPES: 001
dc.description.sponsorshipIdFAPESP: 2014/18551-6
dc.description.sponsorshipIdFAPESP: 2016/09139-0
dc.format.extent8
dc.identifier.citation2019 International Symposium On Lightning Protection (xv Sipda). New York: Ieee, 8 p., 2019.
dc.identifier.urihttp://hdl.handle.net/11449/196881
dc.identifier.wosWOS:000532757700009
dc.language.isoeng
dc.publisherIeee
dc.relation.ispartof2019 International Symposium On Lightning Protection (xv Sipda)
dc.sourceWeb of Science
dc.subjectelectromagnetic transients
dc.subjecttransmission tower
dc.subjecttower-footing grounding impedance
dc.subjectmulti-layer soils
dc.titleComputing Tower-Footing Grounding Impedance and GPR curves of Grounding Electrodes Buried in Multilayer Soilsen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.ieee.org/publications_standards/publications/rights/rights_policies.html
dcterms.rightsHolderIeee
unesp.author.orcid0000-0002-9263-980X[3]

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