SIMULATION OF ELECTRO-THERMAL CONDITION IN A FAULTY LOW-CURRENT CONTACT

Authors

  • GIDEON-GWANZUWANG DANKAT University Politehnica of Bucharest, Laboratory of Electrical Materials
  • LAURENTIU MARIUS DUMITRAN University Politehnica of Bucharest, Laboratory of Electrical Materials https://orcid.org/0000-0003-4815-7368

DOI:

https://doi.org/10.36801/

Keywords:

Contact resistance, FEM, Electric connectors, Electric rezistance, Low Current, Comsol Multiphysics

Abstract

It has been suggested in earlier works of literature that the accuracy of the thermal simulation of electrical connectors is closely related to contact resistance. Contact resistance in electrical connectors occurs as a result of both constriction resistance (caused by narrow paths in which the current flows through the electrical connector) and film resistance (oxidized metals caused by the high resistivity of materials and impurities from the atmosphere etc.). This paper reviews the oxidation and wear affecting electrical connectors by proposing a thermal-electrical coupled finite element simulation (FEM) of the contact temperature rise of a simple contact model in COMSOL Multiphysics.

Author Biography

  • LAURENTIU MARIUS DUMITRAN, University Politehnica of Bucharest, Laboratory of Electrical Materials

    Laurentiu Marius Dumitran was born in Romania on the 1st of March, 1973. He received an M.S. degree in Electrical Engineering from the University Politehnica of Bucharest, Romania, in 1996, and the jointly sponsored Ph.D. degree in Electrical Engineering and Physics from the University Politehnica of Bucharest and the University “Joseph Fourier”, Grenoble, France, in 2001. He is currently a Professor in the Laboratory of Electrical Materials and since 2012, he has been the head of the Department of Electrical Machines, Drive and Materials, University Politehnica of Bucharest. His present research interests include the electrical properties of dielectric materials, the characterization of insulating systems, and electrostatic processes and phenomena.

References

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Published

09.03.2023

Issue

Vol. 18 No. 1 (2022): APME

Section

ELECTRIC MATERIALS

License

Copyright (c) 2023 ELECTRIC MACHINES, MATERIALS AND DRIVES — PRESENT AND TRENDS

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

How to Cite

SIMULATION OF ELECTRO-THERMAL CONDITION IN A FAULTY LOW-CURRENT CONTACT. (2023). ELECTRICAL MACHINES, MATERIALS AND DRIVES — PRESENT AND TRENDS, 18(1), 80-88. https://doi.org/10.36801/