Performance of aligned earth rods under low-magnitude variable-frequency current

Kherif, O., Robson, S. ORCID: https://orcid.org/0000-0003-3156-1487, Thorpe, D. and Haddad, A. ORCID: https://orcid.org/0000-0003-4153-6146 2024. Performance of aligned earth rods under low-magnitude variable-frequency current. Presented at: 23rd International Symposium on High Voltage Engineering (ISH 2023), Glasgow, UK, 28 August - 1 September 2023. IET Conference Proceedings. , vol.2023 (46) pp. 154-157. 10.1049/icp.2024.0444

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Abstract

This paper analyses the behaviour of earthing systems under low and high frequency ranges, aiming to provide effective design and mitigating risk associated with fault current inducted potentials. A parametric analysis is carried out to study the behaviour of two interconnected earth rods under different conditions by varying the length of rods, separation distance, soil resistivity and frequency of the injected current. For long separation distances, the effect of current injection point is studied where above- and under-ground insulating conductors are selected and compared to the case of and bare conductors. Simulations using HIFREQ module of CDEGS are conducted where earthing impedance over frequency is considered as a prime parameter. The results are grouped into several sections in order to provide a clear image on the effect of aforementioned parameters.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Engineering
Date of First Compliant Deposit:	26 November 2024
Last Modified:	26 Dec 2024 02:30
URI:	https://orca.cardiff.ac.uk/id/eprint/174211

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