Title :
A new method for pre-contamination and testing of nonceramic insulators
Author :
Karady, George G. ; Rayappa, A. Vincent ; Muralidhar, Mukund ; Ruff, Don L.
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
A new method is described in this paper for artificial pollution testing of nonceramic insulators. The pollution was repeated a number of times at three different equivalent salt deposit density (ESDD) levels to check for repeatability. Flashover tests were done using the “withstand” voltage method. The leakage current at both low voltage and high voltage were recorded. High voltage resistance was calculated which was found to be a better predictor of flashover voltage. The results of flashover tests were compared to the slurry method. The flashover voltages obtained by the two methods were found to be similar
Keywords :
electric breakdown; flashover; insulator contamination; insulator testing; leakage currents; artificial pollution testing; equivalent salt deposit density; flashover voltages; high-voltage resistance; insulation breakdown tests; leakage current; nonceramic insulators; pre-contamination method; repeatability; slurry method; withstand voltage method; Ceramics; Environmentally friendly manufacturing techniques; Flashover; Industrial pollution; Insulation; Insulator testing; Plastic products; Spraying; Surface contamination; Voltage;
Conference_Titel :
Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-3531-7
DOI :
10.1109/ELINSL.1996.549332
