Title :
Improvement of the DC voltage insulation efficiency of suspension insulators under contaminated conditions
Author :
Naito, K. ; Morita, K. ; Hasegawa, Y. ; Imakoma, T.
Abstract :
The authors describe the results of the research and development on a suspension-type insulator having a DC contamination withstand voltage 1.25 to 1.3 times higher than that of the standard DC fog insulator, as measured by the fog-withstand or the clean-fog method. Also described are the withstand voltage characteristics of the suspension insulator contaminated with soluble materials and nonuniformly contaminated, simulating natural-field conditions. Design criteria taking these results into account are also discussed.<>
Keywords :
insulators; DC voltage insulation efficiency; clean-fog method; contaminated conditions; fog-withstand; natural-field conditions; soluble materials; suspension insulators; withstand voltage; Insulation; Insulator testing; Milling machines; Prototypes; Ribs; Standards development; Surface contamination; Surges; Voltage;
Journal_Title :
Electrical Insulation, IEEE Transactions on
