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Luiz Cheim joined ABB TRES North America in August 2009 as a consulting R&D engineer to support the Transformer Condition Assessment program through advanced dissolved-gas analysis, transformer aging analytical tools, as well as online monitoring and diagnostic systems. Cheim is part of an ABB global R&D organization that works on the development of those tools to support the customer's efforts in maintaining critical assets through the new Smart Grid Initiatives. Before joining ABB, Cheim spent 10 years with Siemens Transformers, later working in the United States with the Siemens Service Solutions Division (SSD/USA) based in Wendell, NC. Cheim was the mentor for the development of the Siemens Transformer Online Monitoring and Diagnostics System (TMDS-L) for legacy transformers in the Americas. He was also part of the Siemens Asset Management Services team under the Siemens Smart Grid Programs. Previously Cheim spent 18 years with the Center for Electric Power Research (CEPEL) in Rio de Janeiro, Brazil, where he started as a high voltage/high power test field engineer at the beginning of his career and achieved the position of senior R&D and project coordinator with large utilities in South America. During that period Cheim had the opportunity to work in cooperation with NIST/USA in Gaithersburg, MD, (Dr. Richard Van Brunt on “Memory Propagation Effects of PD”) and also spent time as a visiting researcher at the Los Alamos National Lab (New Mexico) in the Superconductivity Laboratory. Cheim has been an active member of Cigre Paris since 1984, having acted as chairman of the Study Committee A2-Transformers in Brazil from 2000 to 2006. Cheim was awarded the title Cigre Distinguished Member and also given the Outstanding Contribution Award by the Cigre Technical Committee, Paris, in 2006. Cheim is an active member of the IEEE Transformer Committee and holds a PhD in electrical electronic engineering from the University of Nottingham, UK, as well as an MSc and BSc in electrical electronic engineering from the Federal University of Rio de Janeiro, Brazil.