Title :
Leakage current patterns on contaminated polymeric surfaces
Author :
Fernando, M.A.R.M. ; Gubanski, Stanislaw
Author_Institution :
Dept. of Electr. Power Eng., Chalmers Univ. of Technol., Goteborg
fDate :
10/1/1999 12:00:00 AM
Abstract :
This paper presents measurements of low-level leakage current (LC) patterns on naturally aged insulators and artificially contaminated material samples as well as insulators. A nonlinear behavior of the LC has been observed. Possible causes for this behavior are discussed and its relations to surface hydrophobicity and electric stress are described. In addition, neural networks are trained to recognize the LC patterns as well as to estimate their harmonic contents
Keywords :
ageing; insulator contamination; insulator testing; leakage currents; neural nets; pattern recognition; polymer insulators; ageing; electric stress; hydrophobicity; leakage current measurement; neural network; nonceramic insulator; pattern recognition; polymeric insulator; surface contamination; Aging; Artificial neural networks; Current measurement; Insulation; Leakage current; Pattern recognition; Pollution measurement; Polymers; Stress; Surface contamination;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
