A new method to increase the effective length of horizontal earth electrodes

El Mghairbi, Ahmed, Harid, Noureddine ORCID: https://orcid.org/0000-0001-8203-1895, Griffiths, Huw and Haddad, Abderrahmane ORCID: https://orcid.org/0000-0003-4153-6146 2010. A new method to increase the effective length of horizontal earth electrodes. Presented at: 45th International Universities Power Engineering Conference, Cardiff, UK, 31 August - 3 September 2010. 2010 45th International Universities Power Engineering Conference (UPEC 2010). London: Institute of Electrical and Electronics Engineers (IEEE), pp. 802-805.

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Abstract

In this paper, field experiments and computer simulations of a sectionalised 88 m length horizontal earth electrode under different energisations (dc, variable frequency ac and transients of different shapes) are reported. From measurements of the voltage and current at the injection point, and by incrementally increasing the length of the test electrode, the effective length of the horizontal earth electrode was determined under the different energisations for the soil conditions pertaining to this particular installation. The experimental and simulation results of voltage and current show reasonably close agreement, and it is demonstrated that satisfactory prediction of the effective length using simplified formulae is achievable. A new method to increase electrode effective length is proposed.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Publisher:	Institute of Electrical and Electronics Engineers (IEEE)
ISBN:	9781424476671
Last Modified:	21 Oct 2022 10:18
URI:	https://orca.cardiff.ac.uk/id/eprint/39768

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