• Frequency Dependence of Soil P...

Treffer: Frequency Dependence of Soil Parameters: Effect on the Lightning Response of Grounding Electrodes

Title:
Frequency Dependence of Soil Parameters: Effect on the Lightning Response of Grounding Electrodes
Authors:
ALIPIO, Rafael, VISACRO, Silverio
Source:
IEEE transactions on electromagnetic compatibility. 55(1):132-139
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2013.
Publication Year:
2013
Physical Description:
print, 22 ref
Original Material:
INIST-CNRS
Subject Terms:
Electrical engineering, Electrotechnique, Physics, Physique, Telecommunications, Télécommunications, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Physique des particules elementaires et champs, The physics of elementary particles and fields, Théorie générale des champs et particules, General theory of fields and particles, Courants et leurs propriétés, Currents and their properties, Théorie générale des courants, General theory of currents, Physique des gaz, des plasmas et des decharges electriques, Physics of gases, plasmas and electric discharges, Physique des plasmas et décharges électriques, Physics of plasmas and electric discharges, Décharges électriques, Electric discharges, Arcs, étincelles, éclairs, Arcs, sparks, lightning, Sciences appliquees, Applied sciences, Electrotechnique. Electroenergetique, Electrical engineering. Electrical power engineering, Appareillage de connexion et de protection, Connection and protection apparatus, Terre, ocean, espace, Earth, ocean, space, Sciences de la terre, Earth sciences, Formations superficielles, Surficial geology, Sols, Soils, Constante diélectrique, dielectric constant, Constante dieléctrica, Dispositif mise terre, Earthing device, Dispositivo conectado tierra, Décharge atmosphérique, Lightning discharge, Descarga atmosférica, Dépendance fréquence, Frequency dependence, Eclair, Lightning, Rayo, Electromagnétisme, Electromagnetism, Electromagnetismo, Impulsion, Impulse, Impulsión, Impédance, impedance, Mise à la terre, Grounding, Puesta a tierra, Résistivité, Resistivity, Resistividad, 1140D, 1140H, 1215M, 5280M, 9145F, 9150J, 9240L, Frequency dependence of soil, lightning response of grounding electrodes, soil permittivity, soil resistivity
Time:
1140
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
Lightning Research Center (LRC), Federal University of Minas Gerais, Belo Horizonte 30315-220, Brazil
Department of Electrical Engineering and the Lightning Research Center (LRC), Federal University of Minas Gerais, Belo Horizonte 30315-220, Brazil
ISSN:
0018-9375
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=27077595
Rights:
Copyright 2014 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Earth sciences

Electrical engineering. Electroenergetics

Physics of elementary particles and fields

Physics of gases, plasmas and electric discharges
Accession Number:
edscal.27077595
Database:
PASCAL Archive

Weitere Informationen

Quantities related to the response of grounding electrodes subject to lightning currents are simulated under the assumption of constant and frequency-dependent soil resistivity and permittivity for 100―4000 Ω·m soils, using an accurate electromagnetic model. It was found that the frequency dependence of soil parameters is responsible for decreasing the grounding potential rise of electrodes and, thus, their impulse impedance and their impulse coefficient. This effect is more pronounced with increasing soil resistivity and for typical currents of subsequent strokes. The reduction of these quantities is negligible for soils of 300 Ω·m and below. It is considerable for soils above 500 Ω·m and is very significant above 1000 Ω·m. Reductions of around 23%, 30%, 40%, and 52% are found, respectively, for soils of 600, 1000, 2000, and 4000 Ω·m and typical subsequent stroke currents. Lower values, around 8%, 11%, 18%, and 28%, are found for first stroke currents.