Análise de viabilidade de bancada GTD e relés

Abstract

In this work, simulations of transmission lines are demonstrated by means of a didactic bench and the parameterization of some protection functions of the SEL 421 digital relay. The work aims to integrate the Soma didactic bench, of generation, transmission and distribution of energy with SEL 421 digital relay for the development of teacher / student practices. Initially, a study of the bench was carried out to understand how the transmission lines were simulated and of all modules to determine the protections that could be carried out with the bench. With these data, the study of the relay was carried out. The bench and protective equipment data were compared in order to verify the common points and thus determine the possible protections. Once the functions were determined, the relay parameterization process and problem simulation were initiated so that the performance of the relay can be verified and the data captured. At the end of the simulations, scripts were developed for the practice of Synchronism, Instantaneous Overcurrent, Timed Overcurrent, Lack of phase in addition to some observations regarding the bench modules.