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Forum Topics / Forum Moderators / Moderator Bio
Greg Stone, PhD
serves as the moderator of IGTC's
Large Air-Cooled Generators forum. He is a well-known authority who has written extensively on all aspects of rotating machinery design, testing and maintenance.
Dr. Stone took his degrees from the University of Waterloo, Canada in 1975 (BSEE) and in 1991 (PhD). He began his career as an engineer working at Ontario Hydro's Research Division. In time, he was responsible for the testing of the 1200 large motors and generators in Ontario Hydro's system.
Later Dr. Stone became one of the developers of on-line partial discharge test methods to evaluate the condition of the high voltage insulation in stator windings, used on most large generators and many large motors in North America, and now widely used around the world. Since 1990, he has been employed at Iris Power LP in Toronto Canada, a company he helped to form.
Dr. Stone has published over 150 technical papers and has been awarded three patents concerned with rotating machine maintenance and testing. He has published two books, the latest, Electrical Insulation for Rotating Machines – Design Evaluation, Aging, Testing and Repair.
An IEEE Fellow, Dr. Stone has chaired several IEEE committees responsible for creating standards for evaluation and testing of rotating machines. He is past President of the IEEE Dielectrics and Electrical Insulation Society, and continues to be active on many other IEEE committees.
He has also represented Canada on the International Electrotechnical Commission's IEC 2J (Rotating Machine Insulation), and later became its Chair. He continues to be active in IEC technical committees, IEC 2 (rotating machines) and IEC 112 (electrical insulation).
In 2008 he was awarded the "1906" award from the IEC, for contributions to the development of IEC standards. In 2010 Dr. Stone was elected for a second three-year term the IEC Council Board, the board of directors for the IEC.
Other awards include the IEEE Forster Distinguished Service Award and the IEEE Third Millennium Medal. Dr. Stone is also a Fellow of the Engineering Institute of Canada. He is a registered professional engineer in Ontario.
