Title :
Outdoor polymeric insulators long-term exposed to HVDC
Abstract :
Field experience from outdoor polymeric insulators exposed to HVDC under natural contamination conditions is presented. This paper summarizes the peak leakage current statistics, the hydrophobicity and the surface material conditions studied by electron spectroscopy for chemical analysis (ESCA) and attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy. The results show a strong interrelation between the surface conditions and the performance with respect to leakage currents. Moreover, the results show that the surface conditions and the performance of the insulators exposed to HVDC are rather similar to those of the insulators exposed to HVAC
Keywords :
Fourier transform spectroscopy; HVDC power transmission; chemical analysis; electron spectroscopy; infrared spectroscopy; insulator testing; leakage currents; polymer insulators; ATR-FTIR; ESCA; HVDC; attenuated total reflection Fourier transform infrared spectroscopy; electron spectroscopy for chemical analysis; hydrophobicity; natural contamination conditions; outdoor polymeric insulators; peak leakage current statistics; surface conditions; surface material conditions; Chemical analysis; Electrons; HVDC transmission; Infrared spectra; Leakage current; Plastic insulation; Polymers; Spectroscopy; Statistical analysis; Surface contamination;
Conference_Titel :
Transmission and Distribution Conference, 1996. Proceedings., 1996 IEEE
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-7803-3522-8
DOI :
10.1109/TDC.1996.545926
