Qualidade da energia elétrica: um estudo prático na Unidade II da Universidade Federal da Grande Dourados

Abstract

The present work carries out a study on electric power quality in the campus of the Federal University of Grande Dourados, by means of measurements in the electric power frames of buildings that comprise the faculties and blocks of classrooms in order to detect the presence of voltage imbalances and if these are in accordance with current norms in Brazil, to analyze also the possible impact on the electrical equipments present in these buildings, an analysis of this impact was also carried out in monetary values, or financial loss to the institution. And finally, to propose improvements and te chnical adjustments possible for the mitigation of this problem in the university buildings. The study reveals that today the UFGD meets the parameters required by current legislation, however some buildings have high voltage unbalance factors, which may reduce the useful life of some equipment. For the calculation of voltage unbalance factors, the NEMA, IEEE and CIGRÉ methods were used.