Title :
Characteristics of a positive dc arc formed over an ice surface
Author :
Farokhi, S. ; Farzaneh, M. ; Fofana, I. ; Carreira, A.J.
Author_Institution :
Dept. of Atmos. Icing of Power Network Equip., Univ. du Quebec a Chicoutimi, Chicoutimi, QC, Canada
Abstract :
Positive dc arc propagation on an ice surface was studied by high speed photography and simultaneous measurement of leakage current and voltage. All experiments were performed on a 120-cm long simplified physical model simulating real ice-covered insulators. Some features of the arc development pattern like minor and major arc collapses and the effects of arc propagation direction were examined. Previous measurements of arc constants in terms of V-I characteristics were evaluated and discussed, and a modeling improvement was suggested.
Keywords :
arcs (electric); insulator testing; leakage currents; photography; voltage measurement; V-I characteristics; high speed photography; ice surface; ice-covered insulators; leakage current measurement; positive dc arc; voltage measurement; Atmospheric modeling; Cameras; Current measurement; Dielectrics and electrical insulation; Electrodes; Flashover; Ice surface; Power engineering and energy; Surface discharges; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2009. CEIDP '09. IEEE Conference on
Conference_Location :
Virginia Beach, VA
Print_ISBN :
978-1-4244-4557-8
Electronic_ISBN :
0084-9162
DOI :
10.1109/CEIDP.2009.5377767
