Title :
In-situ condition monitoring of EPDM composite insulators using Fourier transform infra-red spectroscopy
Author :
Blackmore, P. ; Birtwhistle, D. ; Cash, G. ; George, G.
Author_Institution :
Queensland Univ., Brisbane, Qld., Australia
Abstract :
Procedures for determining the amount of polymer oxidation and surface chalking occurring on composite insulators are developed using FTIR spectroscopy. Numerical indicators of surface oxidation and chalking are obtained from ratios of peak heights in the IR spectra. Results of analyses of samples from three different types of EPDM 275 kV insulators suggest that oxidation is affected by surface discharging and weathering and that the amount of surface chalking is related to leakage current
Keywords :
Fourier transform spectra; composite insulating materials; composite insulators; ethylene-propylene rubber; filled polymers; infrared spectra; insulator contamination; leakage currents; monitoring; oxidation; surface discharges; 275 kV; EPDM composite insulators; EPDM insulators; FT infra-red spectroscopy; FTIR spectroscopy; Fourier transform IR spectroscopy; IR spectra; in-situ condition monitoring; leakage current; polymer oxidation; surface chalking; surface discharging; surface oxidation; weathering; Condition monitoring; Fourier transforms; Infrared spectra; Infrared surveillance; Insulation; Leakage current; Oxidation; Polymers; Spectroscopy; Surface discharges;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1997., Proceedings of the 5th International Conference on
Conference_Location :
Seoul
Print_ISBN :
0-7803-2651-2
DOI :
10.1109/ICPADM.1997.616587
