Utilização do Protocolo IEC61850 para Implementação de Seletividade Lógica em um Sistema de 13,8 kV com Múltiplas Fontes e Topologia em Anel" Subtítulo: Aplicação em Subestações Elétricas Industriais para Melhoria de Desempenho e Confiabilidade

Abstract

This study describes the implementation of logical selectivity in a 13.8 kV industrial electrical system using the IEC 61850 protocol, aiming to reduce protection operating times from 0.85-1.05 seconds to 0.1 seconds. The solution was applied at the SE-56C-1 substation of Hydro Alunorte, utilizing a low-cost communication network to enhance system safety and reliability. The project was validated through simulations and a real short-circuit event, proving its effectiveness in equipment protection and operational continuity.