Grounding resistance: a study based on nonlinearity of soil properties
- Authors: Karpova I.M.1
-
Affiliations:
- Emperor Alexander I St. Petersburg State Transport University
- Issue: Vol 11, No 2 (2025)
- Pages: 230-245
- Section: Original studies
- URL: https://journals.rcsi.science/transj/article/view/311283
- DOI: https://doi.org/10.17816/transsyst681998
- ID: 311283
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Abstract
AIM. To develop a model to calculate the resistance of ground electrodes based on nonlinear soil properties under various external influences, including lightning strikes.
MATERIALS AND METHODS. ELCUT 6.5 software was used to build the model as it allows to implement a coupled, non-stationary current spreading and heat transfer model. The authors discuss the use of the model to solve three problems of the resistance of a single vertical ground electrode; in homogeneous soil under the influence of a lightning impulse, tower footing in heterogeneous soil, and temperature and humidity in single-layer soil.
RESULTS. The developed model allows to consider all factors influencing the specific soil resistance and calculate the resistance of the grounding device based on them. Modeling outputs were confirmed by comparing with the papers of other authors.
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##article.viewOnOriginalSite##About the authors
Irina M. Karpova
Emperor Alexander I St. Petersburg State Transport University
Author for correspondence.
Email: legiero@mail.ru
ORCID iD: 0000-0002-1197-0753
SPIN-code: 7820-7708
Cand. Sci. (Engineering), Associate Professor
Russian Federation, St. PetersburgReferences
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