Coordenação e seletividade da proteção de uma usina sucroalcooleira

Abstract

This graduation conclusion work has as objective the elaboration of a study of coordination and selectivity of the electric system of a sugar and alcohol plant. This consists in defining the adjustments of the protection devices. This monography was developed in two stages: initially, the survey of data from the studied plant, involving all elements of the power system; already in the second half, a study case is performed, with the levels of short-circuit used as assumptions. Thus, the time and current graphs were presented that show short-circuits values, in addition to the curves that define the data to be implemented in the previously defined relays.