Abstract The step-up transformers at the Euzébio Rocha Thermal Power Plant in Cubatão - SP [São Paulo] are key for the Brazilian national electric power supply. Due to their significance and to their severe operating conditions,…
Abstract Power Transformers, essential for transmission and distribution networks and, usually the more important assets of a substation, can have eventual failures diagnosed or predicted through online monitoring systems based on decentralized architecture. This novelty, that…
Abstract This article, published in Eletricidade Moderna magazine, shows the principle of operation of the monitoring condensive high voltage bushings in equipment such as transformers and reactors with application examples and typical topology of a system.…
LAD has Treetech technology to control and thermal protection, with the cost adapted to small applications. Developed for applications in oil transformers, dry-transformers, motors and generators, the IED is prepared to receive up to 06 type…
Abstract When a transformer is subject to high currents caused by short circuit, electromechanical internal stresses can cause geometric changes in the windings such as strains and displacements. These strains are harmful because they can reduce…