Analise de viabilidade de troca de motores eletricos superdimensionados e a influencia da energia reativa / Analysis of feasibility of the change of super dimensioned electrical engines and the influence of reactive energy

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

This study shows the importance of the electrical engine of triphasic induction rotor (squirrel cage), which is the main responsible for the waste of electrical energy in industry; it presents its electrical and mechanical characteristics and its evolution along the years, as well. The study describes the problem of the super dimensioning of these engines that exist at the Brazilian industry, which has the major inconvenience of the high required of reactive energy in the electrical systems, presenting the way of invoicing the reactive energy applied by the power suppliers, as well as the main ways of its compensation applied presently by the national industry and its consequences for the existent installation. The study presents a comparative analysis between the engine of high efficiency and the Standard engine, focusing the adaptation of nominal power in relation to the industrial demand, as well as in what concerns the waste of reactive energy by the evaluated options. The background for the development of this study came from researches and adaptation of industrial plants applied by the Author in companies of the American region, as far as reactive electrical energy is concerned. The final conclusion tries to demonstrate that these actions of conservation and adaptation in industrial electrical engines are fundamental for the process of improving the efficiency of the very same industries, the electrical sector and the economy of the country as a whole, since that the same actions imply the reduction of the energy required by the industry without restrictions to the production, resulting into a significant saving of resources in what concerns the supply of new sources of energy and a better utilization of the national electrical system

ASSUNTO(S)

fator de potencia conservation energy energia eletrica - conservação super dimensioned electrical engines potencia reativa (engenharia eletrica) reactive energy motores eletricos de indução

ACESSO AO ARTIGO

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