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Tytuł artykułu

Tutorial on operating characteristics of microprocessor-based multiterminal line current differential relays

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Line current differential (87L) protection schemes face extra challenges compared with other forms of differential protection, in addition to the traditional requirements of sensitivity, speed, and immunity to current transformer saturation. Some of these challenges include data communication, alignment, and security; line charging current; and limited communications bandwidth. To address these challenges, microprocessor-based 87L relays apply elaborate operating characteristics, which are often different than a traditional percentage differential characteristic used for bus or transformer protection. These sophisticated elements may include adaptive restraining terms, apply an Alpha Plane, use external fault detection logic for extra security, and so on. While these operating characteristics provide for better performance, they create the following challenges for users: x Understanding how the 87L elements make the trip decision. x Understanding the impact of 87L settings on sensitivity and security, as well as grasping the relationship between the traditional percentage differential characteristic and the various 87L operating characteristics. x Having the ability to transfer settings between different 87L operating characteristics while keeping a similar balance between security and dependability. x Testing the 87L operating characteristics. These issues become particularly significant in applications involving more than two currents in the line protection zone (multiterminal lines) and lines terminated on dual-breaker buses. This paper is a tutorial on this relatively new protection topic and offers answers to the outlined challenges.
Rocznik
Tom
Strony
s. 5--73
Opis fizyczny
Bibliogr. 18 poz., rys. tab., wykr.
Twórcy
autor
  • Schweitzer Engineering Laboratories, Inc
autor
  • Schweitzer Engineering Laboratories, Inc
autor
  • Schweitzer Engineering Laboratories, Inc
autor
  • Schweitzer Engineering Laboratories, Inc
Bibliografia
  • [1] ALTUVE H.J., SCHWEITZER E.O., III (eds.), Modern Solutions for Protection, Control, and Monitoring of Electric Power Systems, Schweitzer Engineering Laboratories, Inc., Pullman, WA, 2010.
  • [2] ALTUVE H.J., MOONEY J.B., ALEXANDER G. E., Advances in Series-Compensated Line Protection. Proceedings of the 35th Annual Western Protective Relay Conference, Spokane, WA, October 2008.
  • [3] ROBERTS J., TZIOUVARAS D., BENMOUYAL G., ALTUVE H. J., The Effect of Multiprinciple Line Protection on Dependability and Security. Proceedings of the 55th Annual Georgia Tech Protective Relaying Conference, Atlanta, GA, May 2001.
  • [4] KASZTENNY B., FISCHER N., FODERO K., ZVARYCH A., Communications and Data Synchronization for Line Current Differential Schemes. Proceedings of the 38th Annual Western Protective Relay Conference, Spokane, WA, October 2011.
  • [5] SLEEPER H.P., Ratio Differential Relay Protection, Electrical World, October 1927, pp. 827–831.
  • [6] THOMPSON M.J., Percentage Restrained Differential, Percentage of What? Proceedings of the 64th Annual Conference for Protective Relay Engineers, College Station, TX, April 2011.
  • [7] ZIEGLER G., Numerical Differential Protection: Principles and Applications, Publicis Corporate Publishing, Erlangen, Germany, 2005.
  • [8] MILLER H., BURGER J., FISCHER N., KASZTENNY B., Modern Line Current Differential Protection Solutions, proceedings of the 63rd Annual Conference for Protective Relay Engineers, College Station, TX, March 2010.
  • [9] WARRINGTON A.R. van C., Protective Relays: Their Theory and Practice. Vol. 1. Chapman and Hall, Ltd., London, England, 1962.
  • [10] TZIOUVARAS D.A., ALTUVE H., BENMOUYAL G., ROBERTS J., Line Differential Protection With an Enhanced Characteristic. Proceedings of Med. Power 2002, Athens, Greece, November 2002.
  • [11] BENMOUYAL G., LEE T., Securing Sequence-Current Differential Elements, proceedings of the 31st Annual Western Protective Relay Conference, Spokane, WA, October 2004.
  • [12] GUZMÁN A., LABUSCHAGNE C., QIN B.L., Reliable Busbar and Breaker Failure Protection With Advanced Zone Selection. Proceedings of the 31st Annual Western Protective Relay Conference, Spokane, WA, October 2004.
  • [13] BENMOUYAL G., ROBERTS J., Superimposed Quantities: Their True Nature and Application in Relays. Proceedings of the 26th Annual Western Protective Relay Conference, Spokane, WA, October 1999.
  • [14] FODERO K., HUNTLEY C., WHITEHEAD D., Secure, Wide-Area Time Synchronization. Proceedings of the 12th Annual Western Power Delivery Automation Conference, Spokane, WA, April 2010.
  • [15] ADAMIAK M.G., ALEXANDER G.E., PREMERLANI W., A New Approach to Current Differential Protection for Transmission Lines. Proceedings of the 53rd Annual Georgia Tech Protective Relaying Conference, Atlanta, GA, May 1999.
  • [16] GAJIC Z., BRNCIC I., RIOS F., Multi-Terminal Line Differential Protection With Innovative Charging Current Compensation Algorithm. Proceedings of the 10th Developments in Power System Protection Conference, March 2010.
  • [17] SCHWEITZER E.O., III, FISCHER N., KASZTENNY B., A Fresh Look at Limits to the Sensitivity of Line Protection. Proceedings of the 37th Annual Western Protective Relay Conference, Spokane, WA, October 2010.
  • [18] FINNEY D., FISCHER N., KASZTENNY B., LEE K., Testing Considerations for Line Current Differential Schemes. Proceedings of the 38th Annual Western Protective Relay Conference, Spokane, WA, October 2011.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-23379cac-d9ea-4a61-b740-48a1b3601442
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