Estudo de caso de uma subestação do Hospital de Clínicas da UFU: Análise e dimensionamento das instalações elétricas em BT através do software SIMARIS

Abstract

Projects of great complexity require a detailed evaluation to ensure full compliance with safety standards. In this context, in order to ensure the correct functioning of the electrical installations, the analysis of the Low Voltage electrical project of one of the substations in the expansion of the University of Uberlândia's Clinical Hospital was conducted. The study of projects of such magnitude necessitates the use of specific tools for the analysis of electrical systems, and therefore, the main objective of this study was to assess the substation project, with an emphasis on identifying potential adjustments and improvements, through the use of Siemens SIMARIS Design software, and ensure compliance with technical standards and regulations of the Ministry of Health. The evaluated components included circuit breakers, electrical conductors, electrical panels, shielded busbars, capacitor banks, generators, and transformers, using tools that assist in system analysis, studying short circuits and allowing for the adjustment of oversized and undersized equipment. After a detailed investigation, it was found that the original sizing of the substation required substantial adjustments to comply with technical standards and ensure the safety of the electrical system. In total, 245 issues were identified in the original project, involving concerns related to safety, inadequate equipment sizing, and insufficient protection in short-circuit and overload situations. The SIMARIS software proved to be a valuable tool in correcting these discrepancies, resulting in a new project that fully complies with current technical standards. This study successfully achieved its main objective of sizing the low-voltage facilities of the substation, ensuring compliance with technical standards and recommended practices, identifying necessary adjustments, and demonstrating the tangible benefits of these improvements.