Partial Discharge Detection – Theory and Practice

 Instructors:   Steven Boggs, University of Connecticut

Jim Guo, Techimp US Corp

Greg Stone, Iris Power, Canada

Duration: Full day

This short course will start with an extensive overview of the theoretical and engineering basis of partial discharge detection to motivate the various approaches to PD detection and the reasons to select a given approach for a given application. In addition the overview will provide a summary of available knowledge and where that knowledge can be found. The overview will be followed by discussion of specific applications and techniques, such as PD detection in a HV laboratory, in a research context, in shielded power cables, in rotating machines, GIS, transformers, etc. and in the context of techniques, free-space detection, low bandwidth detection, wide-bandwidth detection, time domain detection, frequency domain detection, acoustic detection, optical detection, PD coupling schemes, “calibra­tion”, noise mitigation, data interpretation, etc., the fundamentals of which will be covered in the first part of the course. Adequate time will be available for dis­cus­sion and questions.

About the Presenters:

Steve Boggs received his Ph.D. from the University of Toronto in the field of molecular physics and started his career in the field of dielectrics and high voltage engineering at Ontario Hydro Research where he worked in the areas of partial discharge detection, gas (SF6) insulated switchgear, solid dielectrics, etc. He later spent 6 years at Underground Systems, Inc. as Director of Engineering and Research, after which he spent 20 years as a professor at the University of Connecticut appointed to the graduate faculty in Electrical Engineering, Physics, and Materials Science. He retired from the University of Connecticut in 2013 although he is still involved in work there. Presently Steve spends most of his time doing contract computational research for a range of companies and is involved in a number of academic projects in the US, Europe and Japan. The theory and practice of partial discharge detection has been a continuing interest and subject of publication over his >40 year history in the field.

Jim Guo completed his Ph.D. at the University of Connecticut with a dissertation that involved various aspects of partial discharge detection, including free space detection, PD signal propagation in various types of transmission and distribution cables, etc. He spent 7 years with CableWise, the PD test division of UtilX. In 2015 he joined Techimp US as VP of Technology. Jim has extensive field experience in the application of PD detection in a wide range of contexts.

Greg Stone has a Ph.D. from the University of Waterloo, Canada and is presently employed as a Dielectrics Engineer at Iris Power Qualitrol, a manufacturer of rotating machine condition monitoring equipment.  Prior to that he worked at Ontario Hydro (now OPG) where he helped to diagnose winding insulation condition.  He has been active for >35 years in IEEE and IEC standards working groups concerned with rotating machine electrical insulation evaluation and testing.  He has published three books on these subjects.  He is a Fellow of the IEEE and a professional engineer in Ontario, Canada.