Abstract
Pulse heating of high-current contacts is notable for the presence of considerable temperature gradients in the contact area, which cause the Thomson effect—the appearance of thermoelectric currents. The amount of this effect against conventional Joule heat release is quantitatively estimated. Pulse heating of electrical contacts is numerically simulated with the use of the Comsol program package. It is demonstrated that thermoelectric currents make a negligible contribution to heating in the case of copper contacts.
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References
R. Holm and E. Holm, Electric Contacts: A Handbook, 3rd ed. (Springer, Berlin, 1958).
A. M. Chalyi, V. A. Dmitriev, M. A. Pavleino, and O. M. Pavleino, Surf. Eng. Appl. Electrochem. 49, 433 (2013).
L. D. Landau and E. M. Lifshitz, Course of Theoretical Physics, Vol. 8: Electrodynamics of Continuous Media (Pergamon, New York, 1984), pp. 143–148.
V. V. Samoilov, “Analytical and numerical modeling of electro- and heat transfer in multipoint electrical contacts,” Candidate’s Dissertation in Mathematic and Physics (UGU, Ul’yanovsk, 2004).
E. I. Kim, V. T. Omel’chenko, and S. N. Kharin, Mathematical Models of Heat Processes in Electrical Contacts (Nauka, Alma-Ata, 1977).
S. Kasap, Department of Electr. Engin., Univ. Saskatchewan, Canada, 2001.
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Original Russian Text © A.G. Merkushev, M.A. Pavleino, O.M. Pavleino, V.A. Pavlov, 2014, published in Zhurnal Tekhnicheskoi Fiziki, 2014, Vol. 84, No. 9, pp. 149–152.
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Merkushev, A.G., Pavleino, M.A., Pavleino, O.M. et al. Influence of the Thomson effect on the pulse heating of high-current electrical contacts. Tech. Phys. 59, 1409–1412 (2014). https://doi.org/10.1134/S1063784214090175
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DOI: https://doi.org/10.1134/S1063784214090175