A contribution to the modeling of the transformer joints using a new concept of equivalent variable air-gap length

Acta Technica CSAV (Ceskoslovensk Akademie Ved)

Volumn 42, Issue 3, 1997, Pages 245-262

  Elleuch, M ^a   Poloujadoff, M ^b  

^a UNIVERSITY OF TUNIS   (Tunisia)

^b SORBONNE UNIVERSITÉ   (France)

Author keywords

Circuit models; Flux density distribution; Magnetizing current; Transformer joints

Indexed keywords

EID: 0343295434     PISSN: 00017043     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (25)

1. M. ELLEUCH, M. POLOUJADOFF: Three Phase, Three Limb Transformer Model for Switching Transient Calculations Part I: Parameter Definition and Identification. Acta Technica CSAV, no. 1, 100-117 (1988).
2. M. ELLEUCH, M. POLOUJADOFF: Three Phase, Three Limb Transformer Model for Switching Transient Calculation Part II: Study of Inrush Currents for Symmetrical and Unsymmetrical Connections. Acta Technica CSAV, no. 2, 196-207 (1988).
3. M. HOUARI, M. POLOUJADOFF: Evaluation of Air Gap in Distribution Transformers. ICEM, Budapest, Hungry, Sept. 5-9 (1982).
4. M. A. JONES, A. J. MOSES, J. E THOMSPON: Flux Distribution and Power Loss in the Miterd Overlap Joint in Power Transformer Cores. IEEE Trans. on Magnetics, vol.9, no. 2, 114-122, Dec. 1973.
5. M. A. JONES, A. J. MOSES: Comparison of the Localized Power Loss and Distribution in the Butt and Lapp Mitered Overlap Corner Configuration. IEEE Trans. on Magnetics, vol. 10, no. 2, 321-326 (1974).
6. M. CHIAMPI, A.,L. NEGRO, M. TARGALIE: A Finite Element Method to Compute Three Dimensional Magnetic Field Distribution in Transformer Cores. IEEE Trans. on Magnetics, vol. 16, no. 6 1413-1419 (1980).
7. T. NAKATA, N. TAKAHASHI, K. FUJIVARA, M. SAKKAGUSHI: 3D Magnetic Field Analysis of Corner Joints of a Transformer Core Using Finite Element Method. IEEE Trans. on Magnetics in Japan, vol. 3, no. 10, Oct. 706-708 (1988).
8. D. SHEN, J. C. SABONNADIÈRE, G. MEUNIER, J. L. COULOMB, M. SACOTTE: Three Dimensional Anisotropic Magnetic Field Calculation in Transformer Cores. IEEE Trans. on Magnetics, vol. 24, no. 1, 483-486, January 1988.
9. H. PFUTZNER, C. BENGTSSON, T. BOOTH, F. LOFFLER, K. GRAM: Three-Dimensional Flux Distributions in Transformer Cores as a Function of Package Design. IEEE Trans. pm Magnetics, vol. 30, no. 5, 2713-2727. Sept. 1994.
10. M. CHIAMPI, A. L. NEGRO, M. TARTAGLIA: The Eddy Current Problem in Mitered Overlap Transformer Joints. L'Energia Electrica. no. 9, 374-379 (1982).
11. T. NAKATA, Y. KAWASE: Analysis of the Magnetic Characteristics in the Straight Overlap Joint of Laminated Cores. Electrical Engineering in Japan, vol. 102, no. 1, 78-87 (1982).
12. T. NAKATA, N. TAKAHASHI, Y. KAWASE: Magnetic Performance of Step-Lap in Distribution Transformer Cores. IEEE Trans. on Magnetics, vol. 18, no. 6, 1055-1057 (1982).
13. M. CHIAMPI, A. L. NEGRO, M. TARTAGLIA: Alternating Electromagnetic Field Computation in Laminated Cores. IEEE Trans. on Magnetics, vol. 19, no. 4, 1530-1536, July 1983.
14. T. NAKATA: Numerical Analysis of Flux and Loss Distribution in Electrical Machinery. IEEE Trans. on Magnetics, vol. 20, no. 5, 1750-1755, Sept. 1984.
15. T. NAKATA, Y. KAWASE: Analysis of Magnetic characteristics of Laminated Cores for Establishing an Accuracy Standard of Joint Dimension. Electrical Engineering in Japan, vol. 106, no. 1, 48-56 (1986).
16. F. LOFFER, H. PFUTZNER, T. BOOTH, C. BENGTSSON, K. GRAMM: Influence of Air Gaps in Stacked Transformer Cores Consisting of Several Packages. IEEE Trans. on Magnetics, vol. 30, no. 2, 913-915, March 1994.
17. F. LOFFLER, H. PFUTZNER, T. BOOTH, C. BENGTSSON, K. GRAMM: Influence of Overlap Length in Stacked Transformer Cores Consisting of Several Packages. Journal of Magnetism and Magnetic Materials, vol. 133, 561-563 (1994).
18. Z. GODEC: Influence of Sliting on Core Losses and Magnetization Curve of Grain Oriented Electrical Steels. IEEE Trans. on Magnetics, vol. 13, no. 4, 1053-1057 (1977).
19. P. M. CARLBERG, B. LEWIN: The influence of Edge Effects and Stress on Losses. Proc. Mod. Mag. Materials, paper 4.2.1 (1989).
20. G. SWIFT: Excitation Current and Power Loss Characteristics for Mitered Joint Power Transformer Cores. IEEE Trans. on Magnetics, vol. 11, no. 1, 61-64 (1975).
21. S. A. HOLLAND, L. HAYDOCK: Analysis of Power Transformers Performance Using Distributed Magnetic and Electric Equivalent Circuits. Int. Conf. on Eletrical Machines, Paris, 757-760, Sept. 1994.
22. M. KOZLOWSKI, M. PIETRUSZKA: Quasi-3D Magnetic Field Computation for the Layer Structure of Transformer Cores. Journal of Magnetism and Magnetic Materials, vol. 133, 544-546 (1994).
23. J. C. MOREIRA, T. A. LIPO: Modelling of Saturated AC Machines Including Air Gap Flux Harmonic Components. IEEE Trans. on Industry Application, vol. 28, no. 2, 343-349 (1992).
24. M. ELLEUCH, M. POLOJADOFF: A Contribution to the Modeling of Three Phase Transformers Using Reluctance. IEEE Trans. Magn. vol.32, no. 2, 335-343 (1996).
25. P. SCHÖNHUBER, H. PFÜTZNER, C. BENGTSSON: On Design Problems of Transformer Cores Resulting from the Application of High Grade stress Coated SiFe-Sheets. Cigré Symposium, 300-04, Vienna, May 1987.