Estudo de proteção secundária para usina fotovoltaica de 2,5 mw localizada no estado do amazonas

Abstract

This work presents a study of secondary electrical protection for a 2.5 MW photovoltaic substation, located in the state of Amazonas. The study complies with the resolutions of the National Electric Energy Agency that regulate the topic, as well as the technical standard of the local utility, Amazonas Energia (AmE). Electrical parameters calculations were performed, and the secondary electrical protection coordination diagram was elaborated to demonstrate the effectiveness of the study, considering the protection functions: 25, 27, 46, 47, 50/51, 50N/51N, 59, 67, 78, 81U/O, the connection scheme performed in the protection relay, equipment and specifications necessary for the implementation of the project and order of adjustments in the relay parameterization.