CURRENT LIMITING PROPERTIES OF AN EXPANDING HELICAL ARC

Citation
Mg. Ennis et al., CURRENT LIMITING PROPERTIES OF AN EXPANDING HELICAL ARC, IEE proceedings. Science, measurement and technology, 142(3), 1995, pp. 201-205
Citations number
8
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Engineering, Eletrical & Electronic
ISSN journal
1350-2344
Volume
142
Issue
3
Year of publication
1995
Pages
201 - 205
Database
ISI
SICI code
1350-2344(1995)142:3<201:CLPOAE>2.0.ZU;2-Q
Abstract
The expansion of an arc of helical form is governed by both electromag netic and aerodynamic forces, themselves functions of the arc current and electric field strength through complex interactions. In attemptin g to describe the arc's expansion the product of these two quantities, the power input, can be usefully exploited. As the arc's helical leng th increases, the arc voltage, leading to current limitation and inter ruption. Experimental results showing the evolution of electric field strength with current are also presented.