Compensação de reativos em indústria beneficiadora de grãos com auto produção de energia elétrica

Abstract

The Brazilian industrial sector consumes, practically, half of the electric power of the country. It was observed in the last years, an elevation of the energy losses in the diferente segments, in spite of Government politics to motivate the rational use of energy and success practices documented already. The work described in this document was accomplished in Cooperativa CAAL's industrial plant, in Alegrete, belonging to the grains processing area. It had as main objective to analyze and to propose reductions of costs of the company with base in the study of the electric power invoices. Looking for to promote the electric energy efficiency and compensation of the reactive power requested by the driving force used in the industrial process. Studies were accomplished to improve the conditions of the production and of the electric power consumption, through analysis of the projects, production and involved professionals. Real data were obtained through mathematical analysis of some samples of power quality obtained in parts of the plant, in other words, in those where it occurred the practical intervention. Firstly, it was necessary a complete register of the production volumes, the improvement equipments used and measures of the electric greatness that it conforms to the industry. Then we started with the analysis of correction of the reactive compensation, seeking the best composition and location of the capacitive elements sufficient to provide the correction of the problems found. As results, the proposed improvements have shaped others recommendations for continuity and, especially, the viability of energy efficiency measures to be applied in the plant.