MODELAGEM COMPUTACIONAL DO CAMPO MAGNÉTICO NAS PROXIMIDADES DE LINHAS DE TRANSMISSÃO OPERANDO EM REGIME PERMANENTE: comparativo com as normas vigentes

Abstract

In Brazil, hydroelectric generation is the most responsible for energy. It is remarkable the great distance between power plants and consumption centers; thus, it makes use of extensive transmission lines. In view of this situation, it is reasonable to emphasize the presence of magnetic fields in the transmission lines, and in turn, these magnetic interference fields can cause. By this fact, the work has the main objective to make a computational modeling of magnetic field in the vicinity of transmission lines operating at steady state, and so do a comparison with the current rules. Computer modeling has as main factor to calculate the magnetic field levels in the passband of a transmission line. The calculation itself becomes important, since the level of the magnetic field generated in the passband can put at risk the safety of people and / or animals near the premises. The obtained results is made by a computational program developed in Matlab®, to perform a series of simulations. For the analysis takes into account geometric configurations of transmission lines, changes in soil parameters and a study on low frequency (60 Hz). To validate the results, it is still done a comparison with other results, computational and experimental, in the literature.