Abstract
Abstract This work models the function of medium and low voltage fuses so as to estimate the increase in temperature across the fuse elements during nominal current operation for different types, diameters, element lengths and currents. The power balance in a thin metallic conductor, which simulates the fuse element, was derived and the resulting differential equation solved analytically. The theoretical results were close to the experimental measurements that we made, and the experimental work of other authors. The mathematical model that was developed will be useful in the design of fuses, as the computation of the axial temperature distribution across the fuse elements for the different parameters mentioned above is relatively simple.
Published Version
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