BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/Chicago BEGIN:DAYLIGHT DTSTART:20260308T030000 TZOFFSETFROM:-0600 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:CDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20261101T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0600 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:CST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260320T141724Z UID:921D045D-FD9B-4C55-97DE-3FEE5430C10D DTSTART;TZID=America/Chicago:20260317T113000 DTEND;TZID=America/Chicago:20260317T130000 DESCRIPTION:Thank you members for being patient while we had a bit of a hia tus of meetings. We are excited to get monthly meetings rolling again!\n\n For our March meeting\, we are happy to welcome Sudarshan Byreddy from Bur ns & McDonnel to come speak on Circuit Switcher vs. Circuit Breaker for Tr ansformer Protection.\n\nPresentation:\n\nProtecting transformers from fau lts and transient conditions is essential for reliable utility operations and extending equipment life. This paper compares the performance of high- voltage circuit switchers and circuit breakers for transformer primary swi tching and protection under transformer-limited fault (TLF) conditions. Un der TLF conditions\, the rate of rise in recovery voltage (RRRV) during th e interruption is very high\, imposing significant dielectric stress on pr imary switching equipment. Circuit switchers are specifically designed and tested to withstand fast transient recovery voltage (TRV)\, offering a co st-effective alternative to circuit breakers\, which may experience multip le restrikes\, thermal stress and dielectric breakdown when exposed to fas t TRV conditions. However\, circuit switchers have limited fault-current i nterrupting capabilities compared to circuit breakers\, particularly in ex tra-high-voltage applications. The presentation outlines the specification s and selection criteria for circuit breakers used for transformer protect ion\, especially at extra-high voltages\, and proposes mitigation strategi es\, such as grading capacitors and surge arresters\, to ensure safer oper ation within breaker ratings and improve system reliability.\n\nSpeaker Bi o:\n\nSudarshan received his MS degree from the University of Missouri\, K ansas City in 2015. He is currently working as a Substation Technical Mana ger at Burns & McDonnell. Sudarshan is also a licensed Professional Engine er registered with the Texas Board of Professional Engineers(TBPE). He is the vice chair of the IEEE C37.016 working group and the IEEE PSRC I-46 wo rking group\, and the secretary of the D51 working group. He is actively c ontributing to the revision of several IEEE documents for the IEEE PSRC an d Switchgear committees\, which include C37.101\, the guide for generator ground protection\; C37.243\, the guide for the application of digital lin e current differential protection using digital communications\; and C57.1 3.3\, the guide for grounding instrument transformer secondary circuits\, C37.016\, Standard for High voltage Circuit switchers rated 15.5kV through 245kV. Sudarshan is passionate about Electric Power Systems\, and his wor k helps to improve the reliability and safety of electrical infrastructure .\n\nAs with all of our meetings\, we will be providing lunch. If you do n ot pay online beforehand\, we will not be purchasing lunch for you. Please reach out if there are any issues with payment and we will try to figure it out prior to the meeting. In my experience\, Paypal is the easiest and has had the least issues in the past.\n\nExcited to see everyone on the 17 th!\n\nBldg: 777 Main\, 777 Main St\, Suite 2500\, Fort Worth\, Texas\, Un ited States\, 76102\, Virtual: https://events.vtools.ieee.org/m/544172 LOCATION:Bldg: 777 Main\, 777 Main St\, Suite 2500\, Fort Worth\, Texas\, U nited States\, 76102\, Virtual: https://events.vtools.ieee.org/m/544172 ORGANIZER:ieeepesfortworth@listserv.ieee.org SEQUENCE:14 SUMMARY:IEEE PES Fort Worth Monthly Meeting - March 17th\, 2026 URL;VALUE=URI:https://events.vtools.ieee.org/m/544172 X-ALT-DESC:Description: <br /><p><span class="size" style="font-size: 12pt\ ;"><span style="font-family: Verdana\, sans-serif\;">Thank you members for being patient while we had a bit of a hiatus of meetings. We are excited to get monthly meetings rolling again!</span></span></p>\n<p><span class=" size" style="font-size: 12pt\;"><span style="font-family: Verdana\, sans-s erif\;">For our March meeting\, we are happy to welcome Sudarshan Byreddy from Burns &amp\; McDonnel to come speak on Circuit Switcher vs. Circuit B reaker for Transformer Protection.</span></span></p>\n<p class="MsoNormal" >Presentation:</p>\n<p class="MsoNormal">Protecting transformers from faul ts and transient conditions is essential for reliable utility operations a nd extending equipment life. This paper compares the performance of high-v oltage circuit switchers and circuit breakers for transformer primary swit ching and protection under transformer-limited fault (TLF) conditions. Und er TLF conditions\, the rate of rise in recovery voltage (RRRV) during the interruption is very high\, imposing significant dielectric stress on pri mary switching equipment. Circuit switchers are specifically designed and tested to withstand fast transient recovery voltage (TRV)\, offering a cos t-effective alternative to circuit breakers\, which may experience multipl e restrikes\, thermal stress and dielectric breakdown when exposed to fast TRV conditions. However\, circuit switchers have limited fault-current in terrupting capabilities compared to circuit breakers\, particularly in ext ra-high-voltage applications.<span style="font-size: 11.0pt\; font-family: 'Times New Roman'\,serif\; mso-ligatures: standardcontextual\;"> </span>T he presentation outlines the specifications and selection criteria for cir cuit breakers used for transformer protection\, especially at extra-high v oltages\, and proposes mitigation strategies\, such as grading capacitors and surge arresters\, to ensure safer operation within breaker ratings and improve system reliability.</p>\n<p>&nbsp\;</p>\n<p><span style="font-siz e: 12pt\; font-family: verdana\, geneva\, sans-serif\;">Speaker Bio:</span ></p>\n<p class="MsoNormal"><span style="color: black\; background: white\ ;">Sudarshan received his MS degree from the University of Missouri\, Kans as City in 2015. He is currently working as a Substation Technical Manager at Burns &amp\; McDonnell. Sudarshan is also a licensed Professional Engi neer registered with the Texas Board of Professional Engineers(TBPE). He i s the vice chair of the IEEE C37.016 working group and the IEEE PSRC I-46 working group\, and the secretary of the D51 working group. He is actively contributing to the revision of several IEEE documents for the IEEE PSRC and Switchgear committees\, which include C37.101\, the guide for generato r ground protection\; C37.243\, the guide for the application of digital l ine current differential protection using digital communications\; and C57 .13.3\, the guide for grounding instrument transformer secondary circuits\ , C37.016\, Standard for High voltage Circuit switchers rated 15.5kV&nbsp\ ; through 245kV. Sudarshan is passionate about Electric Power Systems\, an d his work helps to improve the reliability and safety of electrical infra structure.</span></p>\n<p>&nbsp\;</p>\n<p><span style="font-size: 12pt\; f ont-family: verdana\, geneva\, sans-serif\;">As with all of our meetings\, we will be providing lunch. If you do not pay online beforehand\, <strong >we will not be purchasing lunch for you.</strong> Please reach out if the re are any issues with payment and we will try to figure it out prior to t he meeting. In my experience\, Paypal is the easiest and has had the least issues in the past.</span></p>\n<p><span style="font-size: 12pt\; font-fa mily: verdana\, geneva\, sans-serif\;">Excited to see everyone on the 17th !</span></p> END:VEVENT END:VCALENDAR