Outdoor polymeric insulators long-term exposed to HVDC

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...

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Bibliographic Details
Published in:IEEE transactions on power delivery 1997-04, Vol.12 (2), p.1041-1048
Main Authors: Sorqvist, T., Vlastos, A.E.
Format: Article
Language:English
Subjects:
Ageing
Applied sciences
Chemical analysis
Electrical engineering. Electrical power engineering
Electrons
Exact sciences and technology
HVDC transmission
Infrared spectra
Insulators
Leakage current
Physical properties
Plastic insulation
Polymer industry, paints, wood
Polymers
Properties and testing
Spectroscopy
Statistical analysis
Surface contamination
Technology of polymers
Various equipment and components
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Summary: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.
ISSN:0885-8977
1937-4208
DOI:10.1109/61.584435