Monday 7
B. Corona, Barrier and Surface Discharges
Chair: G.J. Pietsch - Each talk is 10'+2' duration
› 12:15 - 12:30 (15min)
› Blaise
Discharge phenomena at partially damaged dielectric electrode coatings in SF6-insulated systems at AC and DC stress
Philipp Arnold  1, *, @  , Stefan Tenbohlen  1  , Uwe Riechert  2  , Maria Hering  3  , Ulrich Straumann  2  , Wolfgang Köhler  1  
1 : Institute of Power Transmission and High Voltage Technology, University of Stuttgart  (IEH)  -  Website
University of Stuttgart Institute of Power Transmission and High-Voltage Technology (IEH) Pfaffenwaldring 47 D-70569 Stuttgart -  Germany
2 : ABB Schweiz AG  -  Website
3 : Institute of Electrical Power Systems and High Voltage Engineering, Technische Universität Dresden  (IEEH)  -  Website
Mommsenstraße 10 01062 Dresden Germany -  Germany
* : Corresponding author

Dielectric coated electrodes in gas insulated switchgear (GIS) components were studied in presence of metallic particles. In the context of microscopic surface degradations, various unexpected phenomena were observed. A simplified test set-up was used to perform fundamental investigations. Low frequency behaviour was examined at DC and 50 Hz AC voltage in pressurized SF6 gas.

Subject : : Oral
Topics : B. Corona, Barrier and Surface Discharges
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