Calculation of Electric Contact Heating on the Basis of Two-Dimensional Temperature Field Model
Two-dimensional temperature field model is proposed to calculate flat contact heating. Numerical algorithms for calculation of contact temperature have been developed on the basis of finite-difference method. The paper reveals temperature distribution in cross-section of flat and knife-blade contact...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Russian |
| Published: |
Belarusian National Technical University
2004-06-01
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| Series: | Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika |
| Online Access: | https://energy.bntu.by/jour/article/view/1130 |
| Summary: | Two-dimensional temperature field model is proposed to calculate flat contact heating. Numerical algorithms for calculation of contact temperature have been developed on the basis of finite-difference method. The paper reveals temperature distribution in cross-section of flat and knife-blade contacts at various time moments in the regime of short circuit. The investigations have shown that the contacts with protective coatings characterized by poor conductance in the regime of short circuit have significant local overheatings along contact edges. |
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| ISSN: | 1029-7448 2414-0341 |