IEEE Denver PES/IAS Chapter NOVEMBER 2022 Meeting

#IAS #PES #5MW #Gas #Turbines #troubleshoot


6:00 – Check-in and Networking

6:30 – Dinner Served

7:00 – Presentation

8:00 – Adjourn

Troubleshooting 5 MW mobile gas turbines  


End users complained of voltage fluctuations from 5 MW mobile gas turbines.  Initial investigations discovered arc marks and corroded connections in the PT bushings.  This type of corrosion is not common across several hundred similar installations used for the past 10 years.  During review of the original damaged PTs engineers postulated that ferroresonance could potentially be a root cause of voltage fluctuations on the original configuration.  During testing, ferroresonant voltage waveforms were captured by a power quality meter at the secondary of the wye PTs feeding the voltage regulator following a breaker close onto unloaded switchgear.  These waveforms were not present during steady state operation nor were they captured during every breaker close operation.  Each of the captured ferroresonant events were accompanied by high speed over voltage spikes that resembled arcing.  This report summarizes the results of an independent, outside review commissioned to further investigate the ferroresonance issue and possible root cause of the arcing damage observed in the PT connections.

  Date and Time




  • Date: 17 Nov 2022
  • Time: 06:00 PM to 08:00 PM
  • All times are (GMT-07:00) US/Mountain
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  • 2644 W Colfax Ave
  • Denver, Colorado
  • United States 80204
  • Building: The Original Brooklyn's
  • Room Number: Upstairs Meeting Room
  • Click here for Map

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  • PLEASE pass this announcement on to others in your company and/or professionals in the field.


    Note: virtual attendance is an option for this month's meeting. Virtual attendees will be sent a joining link the day of the meeting.

  • Starts 27 October 2022 05:42 PM
  • Ends 17 November 2022 11:42 PM
  • All times are (GMT-07:00) US/Mountain
  • 9 in-person spaces left!
  • Admission fee ?
  • Menu: Brooklyn Burger (no cheese), Brooklyn Burger (w/ cheese), Catalina Chicken Sandwich, Buffalo Chicken Wrap, Reuben Sandwich, Cobb Salad , House Salad (vegetarian), No Dinner, Virtual Attendance


Brett Board Brett Board




Brett Board is currently an independent consulting engineer who owns and operates the engineering company Blue Line Logic located in Littleton, Colorado.  Serving as general manager and senior engineer, Brett has been managing and supporting multiple design projects in the industrial and commercial sectors.  In addition, he performs electrical troubleshooting, arc flash studies, protective device coordination studies, and protective relay programming.  His interests include all topics related to power quality such as grounding, harmonics, transients, and power factor correction.  Brett is a member of IEEE and has presented power quality topics at industry technical society meetings.  He received his M.E degree in electrical engineering from the University of Idaho, Moscow, ID and a B.S. degree in electrical engineering from Washington State University in Pullman, WA.


Cost: IEEE member: $15.00 for dinner; Non-IEEE members: $20.00 for dinner; Student IEEE members: free dinner.

No charge to anyone who wants to attend only the presentation (no dinner).