Results 141 to 150 of about 913,912 (191)

New Arc Chamber to Improve Breaking Capacity

Journal of the Korean Society of Marine Engineering, 2012
The mechanism unit, arc chamber and trip unit are imperative components of MCCB which will decide the level of performance of MCCB. Among them, Arc chamber unit is used for extinguishing arc rapidly of fault current and induce the arc inside of grid. At that time inducing arc will split into parts and cooled rapidly so the arc would disappear.
Jin-Young Park, Hea-Yong Cho
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Analysis of high-breaking-capacity fuselink arcing phenomena

Proceedings of the Institution of Electrical Engineers, 1976
The complex nature of the phenomena during arcing periods in modern current-limiting fuselinks makes it extremely difficult to construct exact mathematical models. This paper describes a model based on a number of simplifying assumptions, and it is demonstrated that the correspondence obtained between the voltage and current characteristics derived ...
A. Wright, K.J. Beaumont
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Breaking Down: On Publicity as Capacity

Rhetoric Society Quarterly, 2020
This essay argues for understanding publicity as a kind of ability. Using a brief reading of accounts of nervous breakdown in US newspapers, it suggests that the condition was characterized by the ...
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Spectroscopic observation of high breaking capacity fuse arcs

IEE Proceedings - Science, Measurement and Technology, 1994
The complex nature of arcing phenomena In high breaking capacity fuses has made arc modelling and simulation extremely difficult. This paper describes an experimental spectroscopic technique to continuously investigate arc parameters, such as temperature, in this type of fuse. Arc probing was achieved by the use of an optical fibre and the spectroscopy
L.A.V. Cheim, A.F. Howe
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Long-time operation of high breaking capacity fuses

IEE Proceedings A Science, Measurement and Technology, 1993
The long-time operation of a high breaking capacity fuse using notched strip elements and M-effect alloy, is governed by the interrelationship between the element current distribution, the corresponding element temperature distribution and the M-effect diffusion rate.
D.A. Beaujean, P.G. Newbery, M.G. Jayne
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High breaking capacity fuses with improved cooling

International Journal of Thermal Sciences, 2013
Abstract This paper describes a high breaking capacity fuse with improved cooling. The fuse is equipped with only heat sinks or heat sink and fan, an idea derived from the power semiconductor devices field. Some 3D thermal models are proposed for every analysed case of natural and forced cooling.
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