Oil cooling for disk-type transformer windings - Part 1: Theory and model development

IEEE Transactions on Power Delivery

Volumn 21, Issue 3, 2006, Pages 1318-1325

  Zhang, Jiahui ^a   Li, Xianguo ^b  

^a SIEMENS CORPORATE RESEARCH   (United States)

^b UNIVERSITY OF WATERLOO   (Canada)

Author keywords

Cooling; Disk type; Pressure loss; Temperature distribution; Thermal model; Transformer

Indexed keywords

COOLING; HEAT CONDUCTION; ITERATIVE METHODS; NUMERICAL METHODS; PRANDTL NUMBER; PRESSURE MEASUREMENT; REYNOLDS NUMBER; TEMPERATURE MEASUREMENT; TRANSFORMER WINDINGS;

DISK-TYPE TRANSFORMER WINDINGS; PRESSURE LOSS; THERMAL MODEL;

OIL FILLED TRANSFORMERS;

EID: 33745591630     PISSN: 08858977     EISSN: None     Source Type: Journal    
DOI: 10.1109/TPWRD.2006.871019     Document Type: Article

References (16)

1. L. W. Pierce, "An investigation of the thermal performance of an oil filled transformer winding," IEEE Trans. Power Del., vol. 7, no. 3, pp. 1347-1358, Jul. 1992.
2. J. Zhang and X. Li, "A comprehensive resistance network-based hydraulic model for coolant flow in disk-type electrical transformer windings," in Progress Transport Phenomena: Proc. 13th Int. Symp. Transport Phenomena, S. Dost, H. Struchtrup, and I. Dincer, Eds., New York, 2002, pp. 545-550.
3. C. R. Gane and P. L. Stephenson, "An explicit numerical method for solving transient combined heat conduction and convection problems," Int. J. Numer. Meth. Eng., vol. 14, pp. 1141-1163, 1979.
4. C. R. Gane, A. J. Oliver, D. R. Soulsby, and P. L. Stephenson, "Numerical solution of coupled conduction-convection problems using lumped-parameter methods," in Numerical Methods in Heat Transfer, R. W. Lewis, K. Morgan, and B. A. Schrefler, Eds. New York: Wiley, 1983, vol. 2, pp. 227-274.
5. L. Imre, I. Szabo, and A. Bitai, "Determination of the steady state temperature field in naturally oil-cooled disc-type transformers," in Proc. 6th Int. Heat Transfer Conf., vol. II, Toronto, ON, Canada, Aug. 1978, pp. 123-128.
6. L. Imre, A. Bitai, and P. Csenyi, "Thermal transient analysis of OFAF transformers by numerical methods," in Numerical Methods in Thermal Problems: Proc. 2nd Int. Conf., R. W. Lewis, K. Morgan, and B. A. Schrefler, Eds., Swansea, U.K., 1981, pp. 899-909.
7. A. J. Oliver, "Estimation of transformer winding temperatures and coolant flows using a general network method," Proc. Inst. Elect. Eng. C, vol. 127, no. 6, pp. 395-405, 1980.
8. A. J. Oliver, "A general method for predicting the flows and temperature in a network of interconnecting ducts," in Numerical Methods in Thermal Problems: Proc. 2nd Int. Conf., R. W. Lewis, K. Morgan, and B. A. Schrefler, Eds., Swansea, U.K., 1981, pp. 623-635.
9. P. H. G. Allen and E. P. Childs, "Conjugated heat transfer in disc-type power transformer windings," in Proc. 8th Int. Heat Transfer Conf., vol. 6, San Francisco, CA, 1986, pp. 2977-2982.
10. R. M. Del Vecchio and P. Feghali, "Thermal model of a disk coil with directed oil flow," in Proc. IEEE Transmission Distribution Conf., vol. 2, 1999, pp. 914-919.
11. J. Declercq and W. Van der Veken, "Accurate hot spot modeling in a power transformer leading to improved design and performance," in Proc. IEEE Transmission Distribution Conf., vol. 2, 1999, pp. 920-924.
12. K. Karsai, D. Kerenyi, and L. Kiss, Large Power Transformers. New York: Elsevier, 1987, pp. 83-88.
13. W. J. Minkowycz, E. M. Sparrow, G. E. Schneider, and R. H. Pletcher, Handbook of Numerical Heat Transfer. New York: Wiley, 1988, ch. 1.
14. H. Yamazaki and T. Sakamoto, "Basic cooling characteristics of perfluorocarbon liquid immersed windings for nonflammable transformers. Part 1. disk coil cooling for large-capacity forced circulating transformers," Heat Transf. - Japanese Res., vol. 20, no. 7, pp. 656-667, 1991.
15. S. Kakac, R. K. Shah, and W. Aung, Handbook of Single-Phase Convective Heat Transfer. New York: Wiley, 1987, ch. 3.
16. M. B. Allen, Numerical Analysis for Applied Science. New York: Wiley, 1998, pp. 221-282.