Title :
Experimental investigation of the influence of different wetting conditions on DC strength of a flat insulating surface
Author :
Tang, L. ; Raghuveer, M.R. ; Tarko, Norm J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada
Abstract :
This paper reports some results of experiments conducted using a flat plate geometry, in order to understand the unevenly wetted DC wall bushing flashover problem. Two basic configurations are considered, i.e. a bushing-type configuration in which both longitudinal and normal electric field components exist and an insulator-type configuration in which the longitudinal component of E-field is dominant. The electric field distributions of these configurations under different surface conditions are mapped, and the influence of uneven wetting conditions on the E-field distribution and DC flashover are investigated
Keywords :
bushings; electric fields; electric strength; flashover; high-voltage techniques; insulator testing; moisture; wetting; DC flashover; DC strength; DC wall bushing flashover problem; bushing-type configuration; electric field distributions; flat insulating surface; flat plate geometry; insulator-type configuration; wetting conditions; Dielectrics and electrical insulation; Electric variables measurement; Electrodes; Flashover; Glass; Probes; Spraying; Surface contamination; Testing; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1995. Annual Report., Conference on
Conference_Location :
Virginia Beach, VA
Print_ISBN :
0-7803-2931-7
DOI :
10.1109/CEIDP.1995.483764
