Off-line PD & DF Testing of Stator Winding

Iris Power Webinar - September 9th -1pm CEST


Join us for our latest webinar on "Off-line PD & DF Testing" given by our industry expert Howard Sedding.


  • Purpose of off-line testing 
  • Advantages/disadvantages of off-line vs on-line testing
  • Equipment requirements including power supply considerations
  • Prerequisites for testing
  • Typical off-line PD test program

  • The webinar is directed at engineering and maintenance personnel who purchase, test, maintain, and/or repair high voltage rotating machines. Consultants, manufacturers and repair shop personnel are also welcome.



howard sedding


Dr. Howard Sedding is currently employed by Qualitrol Iris Power – Qualitrol as an Insulation Engineer. He has been involved in, or responsible for numerous projects related to the specification, testing, monitoring and maintenance of solid, liquid and gaseous electrical insulation systems in all of the major items of high voltage equipment. He has over 100 publications in technical journals and conferences in the above fields and has taught courses on rotating machines and cable testing and condition assessment.