Monitoramento de parâmetros relacionados à energia elétrica em ambiente universitário atípico: um estudo de caso

Abstract

The electricity in recent years has been treated as commodities and that utility has reached high monetary values in spot market, due to increased demand and scarcity. The industry, in general, controls very well the demand and consumption, as it hires teams of specialized professionals and they know very well the whole process of production and energy demand. Not so with the universities, because they present a seasonally very variable, mainly by a broadening experience, which in most cases, is not planned in the long term. Recently, universities, due to a policy of the Ministry of Education Government of Luiz Inacio da Silva, received funding for its expansion program REUNI. That, somehow forced the institutions to encourage an expansion in its infrastructure and increased demand for electricity and other goods. Consequently, there was a penalty on the electric bills for overflow contracted demand and also for low power factor. In this sense, UFLA adopted a policy to better control and monitor consumption at each facility in order to obtain a more accurate diagnosis of the conditions of its structure. Thus, this work presents an alternative monitoring of electrical installations under the aspect of charging systems, and the characteristics of the load. Meters were installed at 10 strategic locations specific to the development of this work. Of these 10, five were selected and analyzed for this study. The results show that there is no load balancing phases and a low power factor load factor and a very unstable due to systematic variation in demand. However, there were no significant changes in voltage in distribution networks.