Review of Fault Bus Protection Schemes

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Abstract:

Protection schemes capable of detecting the failure of surge arresters and/or bushings on transformers have been applied by utilities to extend the transformer zone of protection, shorten the duration of line outages and improve system reliability. This scheme typically consists of an instantaneous overcurrent element utilizing one or more current transformer(s) connected in the earth fault path. This presentation will review the benefits, lessons learned and criteria to keep in mind when implementing a fault bus scheme. The response of microprocessor relays to various transient and fault scenarios will also be reviewed.



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  • Date: 14 Sep 2021
  • Time: 11:30 AM to 01:00 PM
  • All times are US/Eastern
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Teams Meeting inviation will be sent out Monday, September 14th after the close of registration to all registants.  As a reminder, registration for the session is free and one (1) PHD will be made available to registered participants.

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This meeting has been canceled. We plan to reschdule this meeting soon.

 

  • Atlanta, Georgia
  • United States

  • Starts 26 August 2021 12:15 PM
  • Ends 13 September 2021 09:00 AM
  • All times are US/Eastern
  • No Admission Charge


  Speakers

Jeff Brogdon, P.E.

Topic:

Review of Fault Bus Protection Schemes

Protection schemes capable of detecting the failure of surge arresters and/or bushings on transformers have been applied by utilities to extend the transformer zone of protection, shorten the duration of line outages and improve system reliability. This scheme typically consists of an instantaneous overcurrent element utilizing one or more current transformer(s) connected in the earth fault path. This presentation will review the benefits, lessons learned and criteria to keep in mind when implementing a fault bus scheme. The response of microprocessor relays to various transient and fault scenarios will also be reviewed.

 

Biography:

Jeff Brogdon, P.E., received a B.S.E.E. degree from the Georgia Institute of Technology and has worked in the area of protection and control since 2008. He is currently Manager of the System Protection and Control Department at Georgia Transmission Corporation where he leads a group of engineers responsible for short circuit studies and setting calculations for protective relays applied on 480 V to 500 kV power systems, electromagnetic transient studies and the development of preliminary design drawings for transmission substations. Mr. Brogdon is a member of the NATF System Protection Practices Group, SERC Protection and Control Subcommittee and NERC Electromagnetic Pulse Working Group. He is a Senior Member of the IEEE and a registered Professional Engineer in the State of Georgia.





Agenda

11:30  Check-in and Presentation Technology Check

11:45  Presentation

12:45  Q&A