Oliveira, Arrhenius Vinicius da CostaRodrigues, Philip Anderson Chaves2025-07-182025-07-182025-07-07RODRIGUES, Philip Anderson Chaves. Procedimento para comissionamento e energização de novas subestações de energia elétrica de 69 kV/13,8 kV em um sistema de distribuição já existente. 2025. 44 f. Trabalho de Conclusão de Curso (Graduação em Engenharia Elétrica) - Departamento de Engenharia Elétrica, Universidade Federal do Rio Grande do Norte, Natal, 2025.https://repositorio.ufrn.br/handle/123456789/64637The demand for electric energy in contemporary society has been intensified by various structural and technological factors. In addition to population growth and accelerated urbanization, the electrification of urban mobility, the advancement of technologies such as artificial intelligence — which requires large data centers — and global efforts aimed at decarbonizing energy matrices have significantly increased global projections for electricity consumption. This scenario presents new challenges to the power sector, requiring the expansion and modernization of generation, transmission, and distribution infrastructures. In the distribution segment, power utilities have adopted several strategies to enhance system robustness and reliability, ensuring power quality through proper voltage levels, loss reduction, and compliance with regulatory indicators such as SAIDI and SAIFI (known in Portuguese as DEC and FEC). Among the most relevant actions is the construction of new electrical substations, which are essential for relieving the load on existing facilities, meeting new demands more efficiently, and improving the operational performance of the grid. These new substations not only expand the system’s capacity but also provide greater operational flexibility and serve as key components for enabling the integration of new technologies and renewable energy sources into the distribution network. The practices adopted by electric utilities for the commissioning and integration of new substations into the distribution system are the subject of analysis in this study. Throughout the work, the procedures used are presented in a technical manner, with an emphasis on supply continuity and system safety. The objective is to provide a clear and well-founded overview of the methods employed to incorporate new substations into already operating networks, while preserving the stability, quality, and reliability of the electricity supply.pt-BRAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/Comissionamento de SubestaçõesEnergização de SubestaçõesSistemas de DistribuiçãobachelorThesis