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Sba: Controle & Automação Sociedade Brasileira de Automatica
Print version ISSN 0103-1759
ALIPIO, Rafael Silva et al. Impulse response of grounding electrodes. Sba Controle & Automação [online]. 2012, vol.23, n.4, pp. 476-488. ISSN 0103-1759. http://dx.doi.org/10.1590/S0103-17592012000400008.
This paper presents a series of parametric analysis of the transient behavior of horizontal grounding electrodes, typical of the transmission line counterpoises. The analyses in question consist of the relationship among grounding resistance, impulse impedance, effective length, impulse coefficient and current distribution along the electrode. The calculation of these parameters follows from the application of a grounding electromagnetic model in the frequency domain, directly derived from field equations and experimentally validated by comparison with experimental results.
Keywords : Grounding; electromagnetic transients; lightning; electromagnetic modeling.