Title :
Particle-initiated breakdown characteristics on a ribbed spacer surface for SF6 gas insulated switchgear
Author :
Yamigiwa, T. ; Ishikawa, Toshio ; Endo, Fumihiro
Author_Institution :
Hitachi Ltd., Ibakari, Japan
fDate :
7/1/1988 12:00:00 AM
Abstract :
Cylindrical post spacers were used to investigate the fundamental effect of ribs on particle-initiated breakdown characteristics. Improved breakdown characteristics, obtained by attaching the ribs, changed with the distance between them; the shorter the distance, the higher the breakdown voltage. When the distance was less than 20-30% of the spacer length, the breakdown voltage increased by 20-60%. The rib effectiveness for SF6 gas insulated switchgear spacers was demonstrated
Keywords :
electric breakdown of gases; gaseous insulation; sulphur compounds; switchgear; SF6 gas insulated switchgear; breakdown voltage; cylindrical post spacers; particle-initiated breakdown characteristics; ribbed spacer surface; Breakdown voltage; Contamination; Electric breakdown; Gas insulation; Geographic Information Systems; Ribs; Stress; Substations; Sulfur hexafluoride; Switchgear;
Journal_Title :
Power Delivery, IEEE Transactions on
