Estudos da Qualidade da Energia Elétrica no IFG Campus Goiânia

Abstract

One of the main reasons for analyzing the quality of electrical energy is due to the increasing use of loads that are sensitive to variations in the parameters of the electrical network, causing damage to users and the application of non-linear devices, which are responsible for the injection of harmonic components of current in the network, causing disturbances that affect, especially in more serious cases, the total failure of these. In this context, the work has as main objective to carry out a case study and compare it with one of the measurement campaigns of another study carried out at the IFG - Campus Goiânia, which at the time took place in a period with low energy consumption due to the stoppage of the teaching activities due to the Covid-19 pandemic (FURTADO, 2021). The adopted methodology consists in characterizing the current harmonic distortions, the voltage harmonic distortions, the frequency variation, the power factor, the steady-state 3

MINISTÉRIO DA EDUCAÇÃO SECRETARIA DE EDUCAÇÃO PROFISSIONAL E TECNOLÓGICA INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DE GOIÁS PRÓ-REITORIA DE PESQUISA E PÓS-GRADUAÇÃO SISTEMA INTEGRADO DE BIBLIOTECAS

voltage and the voltage unbalance, through the measurement campaign with the use of an analyzer of energy produced by Embrasul Indústria Eletrônica, with the aim of verifying whether the electrical installations at the site behave in accordance with the limits established by current regulations. The measurement campaign was carried out in the electrical installations of the study site, considering all loads installed together with the photovoltaic system. The results show that the product quality phenomena remained within the limits established by PRODIST Module 8 and the IEEE 519 - 2014 Standard. However, considerable levels of current harmonic components were identified in the network, although in the other study it was identified justified due to the use of reduced load.