Aim of the tutorial
Based on the work of A2.49, the methodology of gaining information used to derive transformer indices and their consolidation towards structured decisions will be provided. The tutorial intro-duces a process that can be used to assess a transformer and develop transformer assessment in-dices to suit the needs of the user. In addition, the concept of a scoring matrix will be provided, which can be developed and used to ensure that scores are allocated to each transformer’s failure mode or mechanism being assessed in a consistent way and the timing required for action. As a technical base the failure modes and mechanisms as well as the methods of detecting the failure modes and mechanisms for each subcomponent will be provided. The theoretical work will be complemented with a survey on technologies to test transformers on-site and a real live example of transformer assessments. Finally, the participants can discuss their questions and their experi-ences with the experts.
Uwe Kaltenborn, Director Business Development at HIGHVOLT Prüftechnik Dresden GmbH, Germany
Tara-Lee MacArthur, Substation Design Standards Engineer at Er-gon Energy
Brian Sparling, Senior Technical Advi-sor with Dynamic Ratings Inc.
Mark Foata, Senior Technical Advisor on Asset Management Strat-egies at Reinhausen Group
Markus Zdrallek, Professor for Electrical Power Systems at the University of Wuppertal
Petros Dalamaras, Research Assistant at the Institute of Power System Engineering
Michael Heinz, Senior Principal Expert Distribution Transformers at Siemens
Detailed description of tutorial 5