html{display:none} Explore Field Experiences Using the SEL-T400L Time-Domain Line Protection | Schweitzer Engineering Laboratories
upcoming webinar

Explore Field Experiences Using the SEL-T400L Time-Domain Line Protection

Date held: April 8, 2020 • 11:00 a.m. (Pacific Time)
Duration: 60 min

Have you ever seen relay protection performance that eliminates relay operating times, clears faults in breaker operating times, and locates faults within one tower span? This type of performance is not only possible but field-proven using the SEL-T400L Time-Domain Line Protection.

This webinar focuses on ultra-high-speed protection using SEL’s time-domain technology based on traveling waves and incremental quantities. Its functionality includes the underreaching incremental-quantity distance protection element (TD21), permissive overreaching transfer trip logic with traveling-wave (TW32) and incremental-quantity (TD32) directional elements, and the traveling-wave differential protection scheme (TW87).

During this webinar, you will:

  • Gain insights about the SEL-T400L relay’s performance from recent field events.
  • Learn how to analyze traveling-wave events and the operation of time-domain protection.
  • Learn how to perform traveling-wave-based fault locating offline for simple line configurations.
  • View traveling-waves in Bewley lattice diagrams.
  • Hear about the new continuous line-monitoring feature for detecting incipient events.
  • Get a sneak peek of the new SEL-T401L Ultra-High-Speed Line Relay, which is scheduled to release later this year.

Richard D. Kirby
Richard D. Kirby

Senior Product Sales Manager

Richard D. Kirby, MEng, PE, is a senior product sales manager at SEL in Houston, Texas. His current focus is time-domain protection technology. He is a registered Professional Engineer in Arkansas, Louisiana, Michigan, Oklahoma, and Texas. He has 27 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.

Greg Smelich
Greg Smelich

Lead Product Engineer

Greg Smelich earned a B.S. in mathematical science and an M.S. in electrical engineering from Montana Tech of the University of Montana
in 2008 and 2011, respectively. Greg then began his career at SEL as a protection application engineer. In 2016, Greg made the transition to the SEL R&D group as a product engineer, where he now helps guide product development, training, and technical support related to time-domain technology. He has been a certified SEL University instructor since 2011 and an IEEE member since 2010.