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Digital Library of the
European Council for Modelling and Simulation |
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Title: |
Numerical Modeling And Experimental Results Of High Currents Dismountable Contacts |
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Authors: |
Ioan Popa, Ioan Cautil,
Gheorghe Manolea, Florin Ocoleanu, Dan Floricau, Serghie Vlase |
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Published in:
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(2009).ECMS
2009 Proceedings edited by J. Otamendi, A. Bargiela, J. L. Montes, L. M. Doncel
Pedrera. European Council for Modeling and
Simulation. doi:10.7148/2009 ISBN: 978-0-9553018-8-9 23rd
European Conference on Modelling and Simulation, Madrid, June
9-12, 2009 |
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Citation
format: |
Popa, I., Cautil,
I., Manolea, G., Ocoleanu,
F., Floricau, D., & Vlase,
S. (2009). Numerical Modeling And Experimental Results Of High Currents
Dismountable Contacts. ECMS 2009 Proceedings edited by J. Otamendi,
A. Bargiela, J. L. Montes, L. M. Doncel Pedrera (pp.
745-750). European Council for Modeling and Simulation. doi:10.7148/2009-0745-0750 |
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DOI: |
http://dx.doi.org/10.7148/2009-0745-0750 |
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Abstract: |
The paper presents an
electro-thermal numerical model which can be used
for the modelling and optimization of high currents
dismountable contacts for dc current. The model is obtained by coupling of
the electrokinetic field problem with the thermal
field problem. The coupling is carried out by the source term of the
differential equation which describes the thermal
field. The model allows the calculation of the space distribution of the electric
quantities (electric potential, the gradient of potential and the current
density) and of the thermal quantities (the temperature, the temperature
gradient, the Joule losses and heat flow). A heating larger than that of the
current lead appears in the contact zone, caused by the contact resistance.
The additional heating, caused by the contact resistance, is simulated by an
additional source injected on the surface of contact. Using the model, one
can determine the optimal geometry of dismountable contact for an imposed
limiting value of the temperature |
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Full
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