De Oliveira, L C ODe Melo, G. A.Rossi, J. C.Scicuglia, J. W.Dantas, J. D.Penna, C.Ajeje, P. C.2014-05-202014-05-202002-01-0110th International Conference on Harmonics and Quality of Power, Vols I and Ii, Proceedings. New York: IEEE, p. 272-275, 2002.1540-6008http://hdl.handle.net/11449/9697This paper presents the results of the investigations that were done to identify and to quantify the power quality problems resultant from the actions done to improve the efficiency on electric energy consumption. The efficiencies of several electric devices were evaluated, among them: fluorescent bulb, electronic ballast, soft-starter, temperature controller for showers, dimmer and others. This evaluation allowed to establish a cause/effect analysis of the power quality.272-275engefficiencypower qualityharmonicsTrabalho apresentado em evento10.1109/ICHQP.2002.1221444WOS:000185822000049Acesso aberto3775296425205368