Traveling Wave Protection In Transmission Lines
Substantial Improvements in Transmission Line Protection, Fault Locating, and Fault Prevention using Ultra-High-Speed Line Relays
Abstract: This presentation is a brief overview of transmission line protection using time-domain principles, including an introduction to traveling waves (TWs) and incremental quantities that are produced when faults occur in electric power transmission systems. Ultra-High-Speed (UHS) line relays include TW-based and incremental-quantity-based protection elements and schemes with operating times of 1 to 5 milliseconds. This substantial reduction in relay trip time is needed for protecting today’s power system transmission lines near non- standard sources, such as wind turbine generators or inverter-based sources, in low-inertia systems with HVDC links, and in systems with series compensation. UHS relays also include TW-based fault locating (TWFL) methods to locate faults with a high level of accuracy and to perform continuous line monitoring. The ability of UHS relays to provide fault recording at a 1MHz sampling rate and 18-bit resolution allows analysis of high-frequency power system events, including breaker reignition and breaker transient recovery voltages. Transient records with 1 MHz sampling will be used to demonstrate the performance of UHS line protection, visualize the results of the double-ended TWFL method by showing the time-
space relationship of TWs on a Bewley lattice diagram, and present post-fault arcing and circuit breaker reignition observed during the fault event.
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- WCU Engineering
- Cullowhee, NC, North Carolina
- United States 28723
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- Co-sponsored by IEEE WNC PES/IAS
- Starts 20 April 2021 11:00 AM UTC
- Ends 10 May 2021 09:00 PM UTC
- No Admission Charge
Speakers
Richard D. Kirby, MEng, PE of Schweitzer Engineering Laboratories, Inc.
Biography:
Richard D. Kirby, S’90 M’96 SM’06, MEng, PE, is a senior product sales manager at SEL in Houston, Texas. His current focus is ultra-high-speed transmission line protection technology. He is a registered Professional Engineer in Arkansas, Louisiana, Michigan, Oklahoma, and Texas. He has 28 years of diverse electric power engineering experience. He received a BSE from Oral Roberts University in Tulsa, Oklahoma, in 1992, and in 1995 he earned his MEng in electric power from Rensselaer Polytechnic Institute in Troy, New York. He is an IEEE Power & Energy Society and Industrial Applications Society senior member.
My experience is listed on my linked-in page at https://www.linkedin.com/in/richarddkirby/
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This is a Zoom meeting set up by WCU Engineering. Registrants will be sent the Zoom connection information and anoy other details after completion of registration.
Co-sponsored by IEEE WNC and IEEE WNC PES/IAS