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Physical model of surge-current characteristics of buried vertical rods in the presence of soil ionisation

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Title: Physical model of surge-current characteristics of buried vertical rods in the presence of soil ionisation
Authors: Cooray, V. vernon.cooray@hvi.uu.se, Zitnik, M.1, Manyahi, M.1, Montano, R.1, Rahman, M.1, Liu, Y.1
Source: Journal of Electrostatics. Mar2004, Vol. 60 Issue 2-4, p193. 10p.
Subjects: Ionization (Atomic physics), Electric currents, Electric resistance, Temperature
Abstract: In this paper a physical model to describe the non-linear surge characteristics of vertical rods is introduced. The model takes into account the creation of ionised discharge channels around the rod. The resistance of these channels as a function of the current flowing through them is developed by taking into account the heat generation in and dissipation out of the channels and the temperature dependent conductivity of air. The total resistance of the rod is evaluated by taking into account the fraction of current flow in soil and along ionised air channels. The model contains three unknown parameters, which were estimated by comparing simulations with experiments. The results show that more or less the same set of model parameters can be used to predict the temporal variation of the surge impedance of ground electrodes under different experimental conditions. [Copyright &y& Elsevier]
Copyright of Journal of Electrostatics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 12642430
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
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  Data: Physical model of surge-current characteristics of buried vertical rods in the presence of soil ionisation
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  Data: <searchLink fieldCode="AR" term="%22Cooray%2C+V%2E%22">Cooray, V.</searchLink><i> vernon.cooray@hvi.uu.se</i><br /><searchLink fieldCode="AR" term="%22Zitnik%2C+M%2E%22">Zitnik, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Manyahi%2C+M%2E%22">Manyahi, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Montano%2C+R%2E%22">Montano, R.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rahman%2C+M%2E%22">Rahman, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Liu%2C+Y%2E%22">Liu, Y.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Electrostatics%22">Journal of Electrostatics</searchLink>. Mar2004, Vol. 60 Issue 2-4, p193. 10p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Ionization+%28Atomic+physics%29%22">Ionization (Atomic physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+currents%22">Electric currents</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+resistance%22">Electric resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature%22">Temperature</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this paper a physical model to describe the non-linear surge characteristics of vertical rods is introduced. The model takes into account the creation of ionised discharge channels around the rod. The resistance of these channels as a function of the current flowing through them is developed by taking into account the heat generation in and dissipation out of the channels and the temperature dependent conductivity of air. The total resistance of the rod is evaluated by taking into account the fraction of current flow in soil and along ionised air channels. The model contains three unknown parameters, which were estimated by comparing simulations with experiments. The results show that more or less the same set of model parameters can be used to predict the temporal variation of the surge impedance of ground electrodes under different experimental conditions. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Electrostatics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.elstat.2004.01.017
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 10
        StartPage: 193
    Subjects:
      – SubjectFull: Ionization (Atomic physics)
        Type: general
      – SubjectFull: Electric currents
        Type: general
      – SubjectFull: Electric resistance
        Type: general
      – SubjectFull: Temperature
        Type: general
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      – TitleFull: Physical model of surge-current characteristics of buried vertical rods in the presence of soil ionisation
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            NameFull: Montano, R.
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            NameFull: Rahman, M.
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              M: 03
              Text: Mar2004
              Type: published
              Y: 2004
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              Value: 60
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