Estimating the potential for conservation of electrical energy in the residential sector of Manaus AM/Brazil, from the power quality evaluation

Abstract

This work is a study of electricity supplied to residential customers in the city of Manaus-AM/Brazil. We selected three residential consumers with profiles of different loads, of which were collected data concerning the quality of the energy used in homes. The research made use of a tool, the analyser of power quality, KEW 6310. On the basis of procedures for electricity distribution by ANEEL, which provides for minimum requirements for energy (voltage and frequency) we compared the results of the evaluation in selected consumers, where, from the point of view of the network voltage and frequency, the minimum levels laid down by ANEEL are serviced. However, are observed significant levels of harmonic distortion of currents on consumers in study. Finally, it is shown the impact caused by these distortions in the elevation of consumption and the estimation of energy conservation in the residential sector.