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Cooling System for Power Transformer Using Weighting Function  

Cho, Do-Hyeoun (Dept. of Digital Electronics, Inha Tech. Col.)
Publication Information
전자공학회논문지 IE / v.49, no.2, 2012 , pp. 40-45 More about this Journal
Abstract
In this paper, cooling system of power transformers is proposed for temperature optimized control. We predict the peak temperature of power transformer coils using load factors and construct a cooling system using weighting function. For the optimized temperature control for power transformer, a correlation function based on the load factor of a load current and the each temperatures for winding coils, for air and for oil is presented to predict the winding-coil peak temperature. Also, the results controlled by applying the power transformer is presented.
Keywords
power transformer; load factor; winding-coil peak temperature; predict control;
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1 W. J. McNutt, Insulation thermal life considerations for transformer loading guides, IEEE Trans. Power Delivery, vol. 7, pp. 392-401, Jan. 1992.   DOI   ScienceOn
2 Joe Perez, FUNDAMENTAL PRINCIPLES OF TRANSFORMER THERMAL LOADING AND PROTECTION, ERLPhase Power Technologies, Winnipeg, MB, R3Y 1G4,
3 김중경, 한성진, 오연호, 박경엽, 방열기를 갖는 유입자냉식 변압기의 온도분포 해석, 대한전기학회 제37회 하계학술대회 논문집 B, pp.755-756, 2006.
4 IEEE guide for loading mineral-oil-immersed transformers, IEEE Standard C57.91-1995, April 1996.
5 IEEE guide for loading mineral-oil- immersed transformers corrigendum 1, IEEE Standard C57.91-1995/Cor 1-2002, 2003.
6 Chun-Yao Lee, Hong-Chan Chang, Hung-Cheng Chen, A Method for Estimating Transformer Temperatures and Elapsed Lives Considering Operation Loads, WSEAS TRANSACTIONS on SYSTEMS, Issue 11, Volume 7, pp. 1349-1358, November 2008.
7 D. Peterchuck and A. Pahwa, Sensitivity of transformer's hottest-spot and equivalent aging to selected parameters, IEEE Trans. Power Delivery, vol. 17, pp. 996-1001, Oct. 2002.   DOI   ScienceOn
8 B.C. Lesieutre, W.H. Hagman, J.L. Kirtley Jr., An Improved Transformer Top-Oil Temperature Model for Use in An On-Line Monitoring And Diagnostic System, IEEE Transactions on Power Delivery, Vol. 12, No. 1, January 1997.
9 이영실, 변압기활용기술, 성안당, pp. 63, 1998.
10 C. Thammarat, B. Suechoey, S. Tadsuan, V. Kinnares, and S. Bunjongjit, An analysis of temperature of oil-immersed transformer under non-linear load, on PowerCon 2004 International Conference Power System Technology, 2004, vol. 1, pp. 517-521, Nov. 2004.