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Numerical Analysis for the Breaking Characteristic of Fuse-Link
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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.
Title: Numerical Analysis for the Breaking Characteristic of Fuse-Link
Description:
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.
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