Medeiros Júnior, Manoel Firmino deCâmara, Paulo César de Souza2014-12-172009-06-242014-12-172002-05-10CÂMARA, Paulo César de Souza. Implementação de um algoritmo para a análise de curtos-circuitos de alta impedância baseado no fluxo de carga soma de potências. 2002. 95 f. Dissertação (Mestrado em Automação e Sistemas; Engenharia de Computação; Telecomunicações) - Universidade Federal do Rio Grande do Norte, Natal, 2002.https://repositorio.ufrn.br/jspui/handle/123456789/15248This work has as main objective to show all the particularities regarding the Three-phase Power Summation Method, used for load flow calculation, in what it says respect to the influence of the magnetic coupling among the phases, as well as to the losses presented in all the existent transformers in the feeder to be analyzed. Besides, its application is detailed in the study of the short-circuits, that happen in the presence of high impedance values, which possess a problem, that is its difficult detection and consequent elimination on the part of common devices of protection. That happens due to the characteristic presented by the current of short¬ circuit, in being generally of the same order of greatness that the load currents. Results of simulations accomplished in several situations will be shown, objectifying a complete analysis of the behavior of the proposed method in several types of short-circuits. Confront of the results obtained by the method with results of another works will be presented to verify its effectivenessapplication/pdfAcesso AbertoCargaFluxo de carga trifásicoCurto-circuitoSoma de potênciasMétodosmasterThesisCNPQ::ENGENHARIAS::ENGENHARIA ELETRICA