Title :
Electric field and potential distributions along non-ceramic insulators with water droplets
Author :
Que, Weiguo ; Sebo, Stephen A.
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
The electric field and potential distributions along wet nonceramic insulators are calculated using COULOMB, a three-dimensional electric field analysis program. The electric field intensification on the surface of the water droplets on a flat hydrophobic silicone rubber (SIR) sheet is analyzed. The conductivity of the water droplets is also an important factor in the electric field intensification. Under rain or fog conditions, the potential distributions influenced by the water droplets on the weathershed of the insulator are calculated. The plots of equipotential lines for a few typical cases (modeling dry-and-clean, rain, and fog conditions) are also shown
Keywords :
drops; electric fields; electrical engineering computing; insulator testing; silicone rubber insulators; software packages; voltage distribution; water; COULOMB software; conductivity; electric field distributions; electric field intensification; equipotential lines; flat hydrophobic silicone rubber sheet; fog conditions; potential distributions; rain conditions; three-dimensional electric field analysis program; water droplets; weathershed; wet nonceramic insulators; Corona; Dielectrics and electrical insulation; Electric potential; Flashover; Polymers; Rain; Surface cleaning; Surface contamination; Surface discharges; Water pollution;
Conference_Titel :
Electrical Insulation Conference and Electrical Manufacturing & Coil Winding Conference, 2001. Proceedings
Conference_Location :
Cincinnati, OH
Print_ISBN :
0-7803-7180-1
DOI :
10.1109/EEIC.2001.965729
