Projeto de um analisador da qualidade da energia elétrica monofásico de baixo custo.

Abstract

The quest for cost reductions increases the demands on quantity each day and more on the quality of what is consumed. In particular in the evaluation of electric energy, its quality parameters besides being legal requirements are decisive points in energy saving, which in the competitive market that is established can be a decisive parameter. Thus, a device for the analysis of the quality of electrical energy is so important, being a crucial tool for the professional responsible for correcting and/or designing a system immune to these unfavorable conditions. The general objective of this work is to idealize and construct a microprocessed low cost energy quality analyzer using easily accessible components. The developed prototype allowed the acquisition of voltage, current, power, harmonics among other parameters that are used to analyze the quality of electric energy. In general the errors were low, justifying their application in didactic systems or in the initial investigation of small loads.