Estudo de coordenação e seletividade

Abstract

The project presented aims at the elaboration of a study of coordination and selectivity of the electrical system at GE's Camaçari unit Renewable Energy. It consists of defining the settings of the protection devices of the electrical system, with the aid of nominal data and equipment damage curves electricity from “time versus current” graphs provided by the ETAP software. Initially, the necessary data was collected, such as information from the concessionaire, one-line diagram, specifications of protection devices and determination of system loads. Subsequently, it was modeling of the electrical system in the software, using the existing devices of the unit. With the electrical system modeled, short circuit simulations were performed for all types of faults, and device parameters were adjusted to guarantee the coordination and selectivity of the protection system. Finally, they were short circuit reports and parameterization of protection devices are generated.