Title :
Lifetimes of free-burning arcs in air
Author :
Klapas, D. ; Hackam, Reuben ; Benson, F.A. ; Illum, F.
Author_Institution :
University of Sheffield, Department of Electronic & Electrical Engineering, Sheffield, UK
fDate :
9/1/1976 12:00:00 AM
Abstract :
The stability of free-burning copper arcs in air has been investigated using a variety of electrode configurations. The longest lifetimes are obtained using a hollow-cratered cathode which yields lifetimes of more than 10s in the current range 50¿250 A. These times are more than one order of magnitude higher than the lifetimes obtained with a pointed-rod cathode. Distortion of the electrode surface, due to prolonged arcing, reduces the arc lifetime.
Keywords :
arcs (electric); stability; air; copper; electrode surface distortion; free burning arc lifetimes; hollow cratered electrode; magnitude; pointed rod cathode;
Journal_Title :
Electrical Engineers, Proceedings of the Institution of
DOI :
10.1049/piee.1976.0205
