engleski

Analysis of grounding electrode dynamic resistance using FEM

This paper presents an analysis of transient behavior of grounding electrode under the soil ionization effect. The proposed numerical model offers the new approach to the transmission line modeling of a grounding system. The numerical model is based on the finite element method (FEM) applied to the transmission line equations in the time domain. The effect of the soil ionization on the dynamic resistance is modeled by the nonlinear transmission line equations. Besides the soil ionization effect it will be shown the effect of soil permitivity to the dynamic resistance. The obtained results have been compared to the available experimental results from the literature.

the finite element method; nonlinear transmission line; electromagnetic transients

Zbornik s punim tekstom rada izdan je samo kao CD ROM. Prošireni sažeci radova objavljeni su u tiskanom zborniku Programme & Book of Extended Abstracts of the 29th International Conference on Lightning Protection ICLP 2008 ; str. 94