Two of the twelve 100 MVA rectifier transformers at an aluminum smelter were defective. After an in-depth analysis and investigation, the remaining service life of these transformers was virtually nil. Given the scale of the issue and the significant financial losses that would be caused by a plant shutdown, the client had little time to locate the source of the failure and find a solution.
The client turned to our BBA experts, who designed and implemented a rehabilitation plan for the 230 kV substation, including the electrical equipment for 12 rectifier sets, in an extremely tight timeframe. BBA experts established needs, analyzed data, drafted technical specifications, designed new facilities, performed factory acceptance tests, provided technical support, commissioned and, finally, tested performance. Indeed, BBA experts completed all mandate stages without having to shut down production.
Thanks to BBA’s expertise and vast experience as well as power systems and equipment, the client avoided a catastrophe that could have had significant consequences.