Title :
Impact of imperfections in GIS on their electric withstand
Author :
Vlastos, Antonios E.
Author_Institution :
Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
Results from experiments have been analyzed, in which the influence of particulate pollution on the withstand of gas-insulated systems (GIS) were studied. Special attention was paid to the prebreakdown phenomena in the presence of free or fixed metallic particles and to the impact which these particles have on the dielectric withstand of GIS under AC, DC, and impulse voltages. The main parameters were particle dimensions and materials and gas pressure. Both coaxial cylinder and concentric sphere electrodes were used
Keywords :
electric breakdown of gases; gaseous insulation; AC voltage; DC voltage; GIS; coaxial cylinder; concentric sphere electrodes; electric withstand; experiments; gas pressure; gas-insulated systems; impulse voltages; metallic particles; particle dimensions; particulate pollution; prebreakdown phenomena; withstand voltage; Aluminum; Equations; Geographic Information Systems; Length measurement; Particle measurements; Pressure measurement; Q measurement; Thickness measurement; Voltage; Wire;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1988. Proceedings., Second International Conference on Properties and Applications of
Conference_Location :
Beijing
DOI :
10.1109/ICPADM.1988.38356
