Applicability Limits of the Holm–Kohlrausch Approximation to Determine Heating of High-Current Symmetrical Electric Contacts

D. I. Begal’, M. A. Pavleino, O. M. Pavleino, M. S. Safonov, A. A. Statuya

Research output

Abstract

On the basis of numerical simulation of heating of symmetric contacts with flowing current, conclusions were drawn about the accuracy of determining the temperature by the Holm-Kohlrausch method for various methods of cooling the contacts, including with intensive air and liquid cooling. The possibility to apply this method at pulse heating of the contacts has been considered. The dependence of accuracy of determination of the temperature of contact pads on the choice of points of measurement of the surface temperature and potential difference has been revealed.

Original languageEnglish
Pages (from-to)1036-1041
Number of pages6
JournalTechnical Physics
Volume64
Issue number7
DOIs
Publication statusPublished - 1 Jul 2019

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high current
electric contacts
pulse heating
air cooling
heating
liquid cooling
approximation
surface temperature
temperature gradients
cooling
temperature
simulation

Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

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abstract = "On the basis of numerical simulation of heating of symmetric contacts with flowing current, conclusions were drawn about the accuracy of determining the temperature by the Holm-Kohlrausch method for various methods of cooling the contacts, including with intensive air and liquid cooling. The possibility to apply this method at pulse heating of the contacts has been considered. The dependence of accuracy of determination of the temperature of contact pads on the choice of points of measurement of the surface temperature and potential difference has been revealed.",
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AU - Pavleino, O. M.

AU - Safonov, M. S.

AU - Statuya, A. A.

PY - 2019/7/1

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AB - On the basis of numerical simulation of heating of symmetric contacts with flowing current, conclusions were drawn about the accuracy of determining the temperature by the Holm-Kohlrausch method for various methods of cooling the contacts, including with intensive air and liquid cooling. The possibility to apply this method at pulse heating of the contacts has been considered. The dependence of accuracy of determination of the temperature of contact pads on the choice of points of measurement of the surface temperature and potential difference has been revealed.

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