Title :
Insulation integrity of particle-contaminated GIS with dielectric coated electrodes
Author :
Zhang, S. ; Morcos, M.M. ; Gubanski, S.M. ; Srivastava, K.D.
Author_Institution :
Kansas State Univ., Manhattan, KS, USA
Abstract :
Electrical insulation performance of compressed gas insulated switchgear (GIS) and gas insulated transmission line (GITL) systems is adversely affected by metallic particle contaminants. Dielectric coatings help to improve the insulation performance in several ways. In this paper, dynamics of wire particle in a coaxial gas insulated transmission line (GITL) system with coated electrodes under AC voltage is studied using a computational algorithm. The possibility of the SF 6 gas insulation breakdown due to the presence of metallic contaminants was computed at different applied voltages and gas pressures. Results of laboratory experiments are presented
Keywords :
SF6 insulation; dielectric thin films; electric breakdown; electrodes; gas insulated switchgear; insulator contamination; power transmission lines; SF6; SF6 gas insulation breakdown; coaxial gas insulated transmission line; compressed gas insulated switchgear; computational algorithm; dielectric coating; electrical insulation; electrode; metallic particle contamination; wire particle dynamics; Breakdown voltage; Coatings; Coaxial components; Dielectrics and electrical insulation; Electrodes; Gas insulated transmission lines; Gas insulation; Geographic Information Systems; Switchgear; Wire;
Conference_Titel :
Electrical Insulation, 2000. Conference Record of the 2000 IEEE International Symposium on
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-5931-3
DOI :
10.1109/ELINSL.2000.845535
