The profile of the electric field developed at the ground level above a horizontal grounding
electrode due to the impression to the electrode of waves resembling lightning currents of …

This study evaluates the response of a horizontal grounding electrode against impulsive
currents whose waveforms and time front is typical of lightning. The electrode is found buried …

The well know hybrid electromagnetic model (HEM) is widely used for analysis of grounding
systems. However, it has been proven that results obtained by HEM diverge from referent …

Este artigo apresenta os fundamentos físicos e matemáticos de uma metodologia de cálculo
de transitórios eletromagnéticos em aterramentos elétricos, solicitados por fenômenos de …

Numerical methods are based on segmenting the domain of calculations. In this paper the
influence of wire segmentation on the precision of calculations of approximate numerical …

This paper investigates the influence of the soil electrical conductivity and permittivity
dependence with frequency in grounding response to lightning currents. Simulated results …

Ebenso danke ich Herrn Prof. Dr.-Ing. habil. J. Kupfer für seine fachliche Expertise zu
medizinischen Fragen und seine Anregungen. Mein Dank gilt ebenso Frau Prof. Dr.-Ing. I …

This paper presents a mathematical model to calculate transients in grounding systems. The
derived equations arise from direct application of basic electromagnetic equations in …

A key aspect in the evaluation of the lightning performance of an overhead line is the tower
grounding modeling approach. It affects the insulator string overvoltages and the ground …

This paper presents a preliminary analysis of the influence of the frequency-dependent soil
electric parameters conductivity and permittivity on the grounding response to lightning …