Análise de indicadores de qualidade de energia dos blocos A e C da UTFPR campus Toledo com proposições corretivas

Abstract

This work relies on one of the concepts that emerged in recent years and has proved to be of extreme importance as it relates to the current conditions of development around the world: the quality of electrical power. The data used in this research was collected with equipment that monitors indicators of quality of power installed in electric panels on the floors of blocks A and C. It is a known fact that the quality of electrical power has worsened following the growth of the electronics industry and the insertion of heavy loads and a nonlinear system, leading to reduced life of equipment and consequently adding relevant financial and material losses. In order to restore, or at least minimize the disturbances in the electrical system, a greater focus was put on the issues of tension: interruptions, transients, sag and swells, frequency variations, flicker and harmonic distortion (which was analyzed using the harmonic spectrum and waveform rate and total harmonic distortion). In addition, a curve ITI CBEMA was utilized to evaluate the possible damage of abrupt changes in tension on equipment throughout the campus. Finally, a documentary analysis was conducted through windows DIC, FIC and DMIC obtained from the university’s Copel invoices; the variation of the values registered by excess reactive energy consumed during the day, and the study of the variation of power factor over the last two years.