Title :
Flashover of overhead HVTL insulators under desert pollution conditions
Author_Institution :
Dept. of Electr. Eng., Cairo Univ., Egypt
Abstract :
A technique for simulating the natural pollution conditions of overhead high-voltage transmission lines (HVTLs) in the desert is presented. A laboratory simulation of dew formation was carried out. Simultaneous fog and dew represent the most severe operating condition. Under the worst conditions, the flashover voltage reduced to about 17% of the wet flashover voltage and 12.5% of the dry flashover voltage
Keywords :
flashover; insulators; power overhead lines; desert pollution conditions; dew formation; dry flashover voltage; flashover voltage; fog; insulators; overhead high-voltage transmission lines; wet flashover voltage; Air pollution; Cooling; Flashover; Insulation; Soil pollution; Surface contamination; Temperature; Thermal pollution; Transmission lines; Water heating;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1990. Annual Report., Conference on
Conference_Location :
Pocono Manor, PA
DOI :
10.1109/CEIDP.1990.201404
