Influência da distribuição de corrente elétrica em malhas de aterramento sobre o cálculo do potencial.

Abstract

This research work aims at a comparative study of the constant current density and constant voltage electrode models in terms of accuracy and computational effort. Another objective of this work is to study and implement the modified matrix method, to simulate grounding grids. This method is supposed to require less computational effort and to provide accuracy, in order to promote the study of complex grids. The modified matrix method derives from the modified summation method in conjunction with the constant voltage model. The uniform soil model will be applied. Another project is being developedin parallel under the same guidance. The two two layer model is used, but current distribution is considered to be uniform, third project may bring together the results which are being obtained at the present. The developed computational procedures will be applied, in their ultimate version to the study of the grounding grid from Boa Vista substation which belongs to CELB - Companhia de eletricidade da Borborema, Campina Grande, Estado da Paraiba.