Title :
High Current Arc Erosion on Copper Electrodes in Air
Author :
Øyvang, T. ; Fjeld, Elin ; Rondeel, Wilhelm ; Hagen, Svein Thore
Author_Institution :
Fac. of Technol., Telemark Univ. Coll., Porsgrunn, Norway
Abstract :
An arc fault inside metal enclosed switchgear will cause the pressure to rise and vaporization of electrode material may contribute to the pressure rise. An experimental study of high current arc erosion on copper electrodes in air has been performed, with an evaluation of fraction lost by gross melting and vaporization. All experiments were performed at NEFI High Voltage Laboratory in Skien, Norway. The measured mass loss from vaporization in our experiments seems to be negligible compared to erosion by gross melting.
Keywords :
arcs (electric); electrical faults; electrodes; switchgear; NEFI High Voltage Laboratory; arc fault; copper electrode; electrode material vaporization; fraction lost evaluation; gross melting; high current arc erosion; mass loss measurement; metal enclosed switchgear; Copper; Current measurement; Electrodes; Fingers; Loss measurement; Materials;
Conference_Titel :
Electrical Contacts (Holm), 2011 IEEE 57th Holm Conference on
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-61284-650-7
DOI :
10.1109/HOLM.2011.6034779
