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Numerical Analysis for the Breaking Characteristic of Fuse-Link

[+] Author Affiliations
Zheng Shanshan, Lin Qi

Xiamen University

Paper No. IMECE2005-82702, pp. 207-212; 6 pages
doi:10.1115/IMECE2005-82702
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Computers and Information in Engineering
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Computers and Information in Engineering Division
  • ISBN: 0-7918-4214-2 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

Fuses are widely used in many fields. In this paper the breaking processes of low voltage fuse-links of different styles have been simulated in using the FEM. The temperature distribution along the fuse-links has been analyzed numerically at constant over-current operation. The breaking performance has also been studied by comparing the breaking capacity of the different kinds of fuse-links. The results show that, under the same power load condition, the tin-dot welded in the vital position can regulate its temperature rising ratio for a threadlike fuse-link, and delays or accelerates the breaking due to the diameter of the tin-dot. The paper also presents a group of data that help optimize the design of the tin-dot fuse-link so as to meet the protecting demand in a practical circuit.

Copyright © 2005 by ASME

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