Diagnóstico da condição operativa do transformador número 2,60/30 kv da subestação número 9, “Magoanine” por meio de análise de gases dissolvidos em óleo isolante e ensaios de rigidez dieléctrica

Abstract

The present report is prepared with the final objective of evaluating the current operating condition of the transformer number 2 located in substation number 9 that is located in the Magoanine neighborhood based on the analysis of dissolved gases in the insulating oil, as a way to avoid possible future constraints, thus ensuring continuity and efficiency in the supply of energy to users. Power transformers are critical components in electrical power systems, with the function of raising or reducing voltage levels in order to make the transmission and distribution of electrical energy more efficient. Transformers are designed to handle high wattages, making them vulnerable to various types of defects and operational problems. Therefore, preventive maintenance services for transformers are carried out regularly and basically include insulating oil analysis and component tests, which will define the need to carry out interventions. Based on the results of the transformer monitoring, the analysis of dissolved gases in the insulating oil will be carried out to determine the causes of the anomalous results that have been observed, as well as the occurrence of some trips by the buchholz relay. Based on applicable methods and technical standards, carry out the diagnosis of transformers, the diagnosis of the operating condition of the transformer of SE9 Magoanine will be carried out, and then present recommendations that ensure the integrity of the transformer and thus guarantee the safety and reliability of the system.