Journal ArticleDOI
Analysis of high-rupturing-capacity fuselink prearcing phenomena by a finite-difference method
J.G. Leach,P.G. Newbery,A. Wright +2 more
- Vol. 120, Iss: 9, pp 987-993
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TLDR
In this article, a finite difference technique is used to determine the prearcing and steady state behavior of a modern current-limiting fuselink, which is performed by a digital computer.Abstract:
The complex nature of heat flow within a modern current-limiting fuselink precludes direct analysis using classical techniques. This paper describes a method which has been developed for determining the prearcing and steady-state behaviour of such devices. It uses a finite difference technique and is numerical, the calculations being performed by a digital computer. Examples of current and temperature distributions found for some fuse-links are given, and comparisons of calculated and test results for fuselink-clearance times are shown.read more
Citations
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Journal ArticleDOI
Numerical study of the short pre-arcing time in high breaking capacity fuses via an enthalpy formulation
TL;DR: In this article, the phase change of the fuse-element heating coupled with the Laplace equation for the potential and Ohm's law was used to study the short pre-arcing time in high breaking capacity (HBC) fuses.
Journal ArticleDOI
Pre-arcing behaviour of open fuse wire
M S Agarwal,A D Stokes,P Kovitya +2 more
TL;DR: In this article, a theoretical model of the pre-arcing behavior of open fuse wire in air is presented, based on the solution of the heat transfer equation and accounts for axial thermal conduction, radial thermal radiation and free convection as the major heat-loss mechanisms, and Joule heating as a major heat source.
Proceedings ArticleDOI
Modelling of the pre-arcing period in HBC fuses including solid - liquid - vapour phase changes of the fuse element
TL;DR: In this article, the authors presented a model and a numerical method of the fuse element heating including solid-liquid-vapour phase transitions in order to evaluate the pre-arcing time in HBC fuses.
Journal ArticleDOI
A.C. short-circuit performance of notched fuse elements
R. Wilkins,P.M. McEwan +1 more
TL;DR: In this article, the heating of notched fuse elements under a.c. short-circuit conditions has been studied, using finite-difference methods to solve for the transient current and temperature distributions in the element.
Journal ArticleDOI
Measurements of time-resolved spectra of fuse arcs using a new experimental arrangement
William Bussiere,P. Bezborodko +1 more
TL;DR: In this article, a new experimental set-up has been designed to observe spectral studies in fuse arcs and the whole visible spectrum has been registered, from 360 nm to 800 nm, in the exploding part of the arc.
References
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Journal ArticleDOI
The high-rupturing-capacity cartridge fuse, with special reference to short-circuit performance
TL;DR: In this paper, a summary of the advantages of the high-rupturing-capacity cartridge fuse and the breaking-capacity requirements for fuses for use in low and medium-voltage circuits, as set forth in British Standard No. 88-1939, are enumerated.
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