BiLEŞENLER FARKI YONTEMi iLE ORTA GERiLiM (OG) ENERJi DAGITIM HATLARINDA ARIZA AKIMLARI ANALiZi

Bu cahsrnada, Bilesenler Farki Yonterni kullanilarak Orta Gerilim (OG) havai enerjidagrtrm hatlannda olusabilecek sont arizalann analizi yapilrrustir. Dijital role akrrnve gerilim verileri kullanilarak anza olus zarnaru, anza tipi ve anza noktasmdakianza yol akimlanrun hesaplanrnas: gosterilrnistir. Ariza akrmlanrunhesaplanmasinda, enerji dagiurn hatu sonuna baglanabilecek baska bir kaynak,cesitli yukler, bunlann karakteristiklerinde meydana gelebilecek degisrneler dikkateahnrmsnr. Hesaplamalardan elde edilen sonuclar, Electromagnetic TransientsSimiilasyon Prograrm (EMTP) kullanilarak gerceklestirilen enerji dagrurn hattindanokunan degerlerle karsilasnnlmisur. Elde edilen sonuclar yonternin enerji daginmhatlannda etkili bir sekilde kullarnlabilirligini gosterrnektedir,

Anahtar Kelimeler:

Enerji Daginm Hatlan, Ariza Akirnlan, Anza Tipi, Bilesenler Farki

ANAL YSIS OF FAULT CURRENTS IN MEDIUM VOLTAGE (MV) POWER DISTRIBUTION LINES WITH SUPERIMPOSED COMPONENTS

In this study by using Superimposed Components method shuntfaults are analysed for overhead power distribution systems. By using digitalfault recorded data. fault inception time. fault path currents and the type offault are found. In the proposed method, possible presence or remote infccdsource and varying nature or loads and source capacities arc taken intoaccount. The results obtained lrorn the calculations arc compared with thefault path currents obtained from a realistic distribution system which issimulated with the well known EMTP simulation package. The results showthat the proposed method Can be effectively used for overhead powerdistribution lines.

Keywords:

Power Distribution Lines, Fault Currents, Fault Type, Superimposed Components,

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[1] J Cook V. Fundamental Aspects of Fault Location Algorithm Used ill Distance Protection, lEE Proceeding, No.133,Pt.5, pp359-368 (1986)
[2] Gonen, T. Electric Power Distribution System Engineering; Text Book. McGrawrun, (1986)
[3] Girgis A.A, Falloll M Christopher.. Lubkernan L David. A Fault Location Technique for Rural Distribution Feeders. IEEE Transactions on Industry Applications. vol, 29. No.6, November 1993, pp.1170-1175.
[4] Das R .. Sachclev M.S., Sidhu T. S. A Technique for Estimating Location ofShunt Faults on Distribution Lines, Proc IEEE, Wescanex'95 (1995)
[5] Asian Y., Aggarwal R.K., Johns AT. Fault Location ill Overhead Distribution Svstcms Using Superimposed Components, 30'h Universities Power Engineering Conference 1995 at University of Greenwich, UK, September, (1995)
[6] Aggarwal R. K. Asian Y. Johns A. T. A Nell' Concept in Fault Location for Overhead Distribution Systems Using Superimposed Components, lEE Proc. C, May. 144 (3). pp 309-316 (1997)
[7] Johns A. T., Moore P. J., Whittard R. New Technique for the Accurate Location of Earth Faults on Transmission Systems, IEE Proc. C, March, 142 (2), pp 119-127 (1995)
[8] Moore.P J. Power System Protection, vol.4: Digital protection and signalling, The Institution of Electrical Engineers, (1997)
[9] Sheingold D. H. Digital Conversion Handbook, 3. edition, Prentice-Hall. (1986)
[10] Aggarwal R. K., Coury D. Y., Johns A. T. and Kalam A. A Practical Approach to Accurate Fault Location 011 Extra High Voltage Teed Feeders, IEEE Transactions on Power Delivery, vol 8, No.3. July, pp 874-883, (1993)
[11] Makrarn E. B., Bourabee M. A., Girgis A.A. Three-Phase Modelling of Unbalanced Distribution Systems During Open Conductors and/or Shunt FOIIIT Conditions Using the bus hnpedance Matrix, Electric Power System Research, No.13, ppl73-183 (1987)