Title :
Effect of altitude on the flashover voltage of contaminated insulators
Author :
Sundararajan, Raji ; Nowlin, Robert W.
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
Contamination flashover of insulators depends not only on the severity and type of contamination, but also on the altitude at which these insulators are situated. Reduced pressure or air density combined with light contamination at high altitudes decreases the flashover voltage. Experimental testing of a number of insulators for a wide range of outdoor conditions is time consuming as well as expensive. This paper presents the results of an investigation on the ac flashover voltages of contaminated insulators at reduced pressure using a numerical model. The model results agree well with experimental data
Keywords :
flashover; insulator contamination; altitude; contaminated insulator; flashover voltage; numerical model; outdoor environment; Atmospheric modeling; Contamination; Dielectrics and electrical insulation; Flashover; Ice; Insulator testing; Ocean temperature; Sea level; Snow; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on
Conference_Location :
Millbrae, CA
Print_ISBN :
0-7803-3580-5
DOI :
10.1109/CEIDP.1996.564502