Step Up Transformer online monitoring experience in Tucuruí Power Plant

摘要

The Step Up Transformers at the Tucuruí Hydroelectric Power Plant are very important for the National Interconnected System (SIN). Due to that, and due to the severe work conditions, Eletrobrás Eletronorte has always kept a rigorous preventive maintenance program for these equipments. However, transformer failure history in the first powerhouse (older ones) led to the implantation of the online monitoring system, in order to detect the defects when they start, and mitigate the risks even more.