High Voltage Line Investigations: "HV Switch Vacuum Interrupter Failure & HV 3WAY GOAB Switch Alternative” IEEE PI2 April Tech Meeting

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IEEE PI2 Austin, April 25th, 2023, Tech Meeting via WebEx and In-Person 6 PM Central / 7 PM Eastern at Lupe Tortilla off MoPac.

  • New Location:    Lupe Tortilla, 10515 N MoPac Expy, Austin, Texas

    Dinner (Fajitas) and soft beverages will be provided for those with reservations. If you do not have a reservation you will not be able to eat.

    Cost, to defray the room, dinner and refreshments cost. Thank you in advance:

    • All Attendees: In-person Choices:
      • IF REGISTERED IN ADVANCE
        • $25.00 Paypal from your card when registering  - you do not need a Paypal account to use it. Click through to the credit/debit page.
        • $25.00 credit/debit with Square at the meeting. Please register in advance (skip the payment)
      • IF NOT REGISTERED IN ADVANCE
        • $30.00 cash at the meeting
    • On-Line- $5.00 Paypal (you don’t need to have an account to pay)
    • IEEE Student Members  - free (must register in advance with your IEEE member number)

In person registration ends on April 21st, 2023.

The WebEx information will be emailed to you the day of the event. Contact haleyhirschfield@ieee.org if you have any questions or do not receive the WebEx details.

For PDH hours, please email the PI2 Secretary, Haley Hirschfield at haleyhirschfield@ieee.org or pi2-secretary@ieee.org.

Abstract

Abstract:

  1. Investigation of a widespread vacuum switch interrupter component failure experienced on 138-kV vertical air break switch. Failure analysis was conducted with a joint effort of LCRA and the Field testing conducted by LCRA demonstrated 50% loss of the component at 20 operations. Similar results were observed from a HV laboratory test conducted by Turner Electric. IEEE std 1247-2005 section 8.3.1.8 test duty may not be adequate for what utilities need. LCRA mitigated the failure risk through maintenance practice revision, procedure update, and heavy-duty hardware implementation.   
  2. Investigation of inoperable 3WAY GOAB Transmission Switch concerns and LCRA’s new design solution overcoming the challenges. While the popular 3 WAY GOAB Transmission Switches design offered by all major manufacturers may have a flaw that raises switch availability concerns and inoperable problems.

  Date and Time

  Location

  Hosts

  Registration


  • Date: 25 Apr 2023
  • Time: 06:00 PM to 08:00 PM
  • All times are (UTC-05:00) Central Time (US & Canada)
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  • Lupe Tortilla
  • 10515 N MoPac Expy
  • Austin, Texas
  • United States 78759
  • Building: Building R
  • Click here for Map
  • Contact Event Hosts
  • Starts 10 April 2023 02:30 PM
  • Ends 25 April 2023 06:00 PM
  • All times are (UTC-05:00) Central Time (US & Canada)
  • Admission fee ?

  Speakers

Nick Choi Nick Choi of LCRA

Topic:

High Voltage Line Component Investigations: "High Voltage Switch Vacuum Interrupter Component Failure and Alternatives"

Abstract:

  1. Investigation of a widespread vacuum switch interrupter component failure experienced on 138-kV vertical air break switch. Failure analysis was conducted with a joint effort of LCRA and the Field testing conducted by LCRA demonstrated 50% loss of the component at 20 operations. Similar results were observed from a HV laboratory test conducted by Turner Electric. IEEE std 1247-2005 section 8.3.1.8 test duty may not be adequate for what utilities need. LCRA mitigated the failure risk through maintenance practice revision, procedure update, and heavy-duty hardware implementation.   
  2. Investigation of inoperable 3WAY GOAB Transmission Switch concerns and LCRA’s new design solution overcoming the challenges. While the popular 3 WAY GOAB Transmission Switches design offered by all major manufacturers may have a flaw that raises switch availability concerns and inoperable problems.

Biography:

Nick Choi has been employed at Lower Colorado River Authority since 2015. He is a Senior Engineer with the Transmission Reliability group in LCRA working in electric power industry, and a licensed Professional Engineer in the state of Texas. He earned B.S. in Mechanical Engineering degree from University of Illinois at Urbana Champaign. Prior to LCRA, He had worked in the areas of pure water engineering, project management, and semiconductor manufacturing. He serves as the ACCA committee chair for Doble International Conference.




Agenda

Mixer/Food-Refreshments/Sign-In: 6:00 PM to 6:45 PM

Program: 6:45 PM to 7:45 PM

Networking: 7:45 PM to 8:00 PM