2012-09-272012-09-272012-03-15ESTEVES, Eduardo Augusto Cardoso. Impactos na qualidade da energia elétrica provenientes do rápido crescimento da demanda no Sudeste do Estado do Pará. Orientadora: Maria Emília de Lima Tostes; Coorientador: Ubiratan Holanda Bezerra. 2012. 131 f. Dissertação (Mestrado em Engenharia Elétrica.) - Instituto de Tecnologia, Universidade Federal do Pará, Belém, 2012. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/2981. Acesso em:.https://repositorio.ufpa.br/handle/2011/2981In the recent years, the social and economical development in the Southeast of the State of Pará has been mainly caused by the exploitation and processing of mineral industries, which added to the population growth, has generated a high increase in the demand of electric energy and consumption due to the increasing installation of new industrial, commercial, residential and rural single-phase charges. This global increase is impacting directly the performance of distribution of electric utility, which can be expressed by the permanent disturbances caused by harmonics, such as buzzing in the power transformer and disruption of medium voltage conductors. These disturbances will be presented in a study of case involving the Substations (SE’s) Itacaiúna and Itupiranga. To prove how they can be harmful in these SE’s, campaigns of measurement were performed to obtain practical results and then, to perform studies involving simulations of short-circuit, load flow and spreading of harmonics in order to obtain an analytical diagnostic about the situations found and thus to issue recommendations to solve the problems identified. This study will provide a valuable support to the Concessionaire of Energy and it may be taken as a reference to the study of Power Quality in other substations, in addition to experimental basis for future charges from ANEEL, regarding the implementation of procedures in Electric Power Distribution National Electric System (PRODIST).porAcesso AbertoQualidade de energia elétricaCampanha de mediçãoDistorção harmônicaSimulaçãoPower qualityCampaigns of measurementHarmonic distortionSimulationDissertaçãoCNPQ::ENGENHARIAS::ENGENHARIA ELETRICA::SISTEMAS ELETRICOS DE POTENCIA::MEDICAO, CONTROLE, CORRECAO E PROTECAO DE SISTEMAS ELETRICOS DE POTENCIACNPQ::ENGENHARIAS::ENGENHARIA ELETRICA::SISTEMAS ELETRICOS DE POTENCIA::TRANSMISSAO DA ENERGIA ELETRICA, DISTRIBUICAO DA ENERGIA ELETRICACNPQ::ENGENHARIAS::ENGENHARIA ELETRICA::MEDIDAS ELETRICAS, MAGNETICAS E ELETRONICAS INSTRUMENTACAO