Thermal Modeling of Dry-Transformers and Estimating Temperature Rise
Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32807
Thermal Modeling of Dry-Transformers and Estimating Temperature Rise

Authors: M. Ghareh, L. Sepahi

Abstract:

Temperature rise in a transformer depends on variety of parameters such as ambient temperature, output current and type of the core. Considering these parameters, temperature rise estimation is still complicated procedure. In this paper, we present a new model based on simple electrical equivalent circuit. This method avoids the complication associated to accurate estimation and is in very good agreement with practice.

Keywords: Thermal modeling, temperature rise, equivalent thermal circuit.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1060002

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 3756

References:


[1] "IEEE Standard Test Code for Dry -Type Distribution and Power Transformers", ANSI / IEEE C57.12.91, 1992.
[2] M. P. Saravolac, "Use of Optic Fibers for Temperature Monitoring in Power Transformers". IEE Colloquium (Digest), no. 75, Mar 22 1994.
[3] D. J. Tylavsky, G.A. McCulla, "Transformer Thermal Modeling: Improving Reliability Using Data Quality Control", IEEE Transactions on Power Delivery, Vol 21, No. 3, July 2006.
[4] D. Susa, "Dynamic Thermal Modeling of Power Transformers". Doctoral Dissertation, Helsinki University of Technology, 2005.
[5] G. Swift, T.S. Molinski, W. Lehn, "A Fundamental Approach to Transformer Thermal ModelingÔÇöPart I: Theory and Equivalent Circuit", IEEE Transactions on Power Delivery, Vol 16, No. 2, April 2001.
[6] C. Oliver, "A New Core Loss Model for Iron Powder Material", Switching Power Magazine, Spring 2002, pp. 28-30.
[7] W. H. Tang, Q. H. Wu, Z. J. Richardson, "A Simplified Transformer Thermal Model Based on Thermal-Electric Analogy", IEEE Transactions on Power Delivery, Vol 19, No. 3, July 2004.
[8] G. Orenchak, "Estimating Temperature Rise of Transformers", Power Electronics Technology, July 2004, pp. 14-22.
[9] Cleveland, W.S. and S.J. Devlin, "Locally Weighted Regression: An Approach to Regression Analysis by Local Fitting," Journal of the American Statistical Association, Vol. 83, pp. 596-610, 1988.
[10] Curve Fitting User-s Guide, Mathworks Inc.