Webinar: Preventative maintenance Partial Discharge testing of Switchgear and Cables


This presentation will provide an introduction to different common methods of partial discharge testing of switchgear. It will cover a brief introduction to:

  • What is PD?
    • Surface
    • Internal
    • Corona Discharge
  • Common methods of testing:
    • Offline testing - VLF and Tan Delta
    • Online testing - Ultrasonic, Transient Earth Voltage, RF, Cable
  • Advantages and limitations of both
  • Examples from the field
  • Recommended testing practices and frequency

Advance registration only, prior to noon on May 12.

A link to the WebEx registration will be sent to the email address you provided during this vTools registration, on the afternoon on May 12, by "IEEE Southern Alberta".  Please double check the spelling of your email address when registering.

You will need to complete the WebEx event registration prior to joining the webinar.

  Date and Time




  • Date: 13 May 2020
  • Time: 12:00 PM to 01:00 PM
  • All times are Canada/Mountain
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  • Calgary, Alberta
  • Canada

  • Co-sponsored by EA Technology LLC
  • Starts 20 April 2020 12:00 AM
  • Ends 12 May 2020 11:59 AM
  • All times are Canada/Mountain
  • No Admission Charge


Tim Erwin of EA Technology LLC


Tim Erwin has worked for manufacturers in the power industry for over 23 years. In his present role as Sales Manager at EA Technology LLC, he is responsible for sales, service, support and training on partial discharge instruments and condition-based asset management. EA Technology LLC is responsible for all activities in North and South America and the Caribbean / Bermuda.

Prior to working with EA Technology Tim was a protection and control Regional Technical Manager for ABB’s Medium Voltage Relay Division for 9 years. In this role he provided pre and post sale technical support for ABB’s medium and high voltage protective relays. His responsibilities included relay application engineering, training and protection control logic development.

Tim received his B.S. EET degree from the New Jersey Institute of Technology in 1996 and worked for RFL Electronics for 12 years after graduation in Customer Support, Sales Engineering and as an R&D relay application engineer.

Address:New Jersey, United States


  • 11.45am: WebEx opens
  • 12.00pm: Presentation begins
  • 12.45pm: Questions & Answers
  • 1.00pm: Presentation concludes