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A statistical approach to assess the filler dispersion of silicone rubber composites for HV outdoor insulators

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1109/CEIDP51414.2023.10410515
AuthorSearch for: 1; Search for: ; Search for: 1; Search for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada. Metrology Research Centre
FormatText, Article
Conference2023 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), October 15-19, 2023, East Rutherford, NJ, USA
Subjecthigh voltage outdoor insulator; silicone rubber composites; filler dispersion; median absolute deviation; resistance; temperature measurement; correlation; high-voltage techniques; rubber; dispersion; erosion
Abstract
This paper investigates the use of a statistical analysis for assessing the filler dispersion in silicone rubber composites used for high voltage outdoor insulation applications. The study particularly examines the use of the Median Absolute Deviation as a robust measure to evaluate the variability, and thus repeatability, of thermogravimetric analysis test outcomes for different silicone rubber composites at different temperature rise rates. Different Alumina-trihydrate filled silicone rubber composites are examined in the study. The results suggest a correlation between the Median Absolute Deviation and the degree of filler dispersion observed under Scanning Electron Microscopy. This correlation in outcomes is particularly evident at 25ᵒC/min . The composites are further tested using the dry-arc resistance test as per ASTM D495. The variability in the erosion resistance outcomes of the dry-arc resistance test correlate with the Median Absolute Deviation outcomes. These outcomes collectively suggest the potential of the proposed statistical approach as a quick assessment tool to supplement microscopic imaging towards understanding the effect of the degree of filler dispersion on the erosion resistance of silicone rubber for use in high voltage outdoor insulation applications.
Publication date
PublisherIEEE
In
  • 2023 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 10410515 (15 October 2023).
LanguageEnglish
Peer reviewedYes
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Record identifiercdf5a267-0125-45d1-a0f5-b9573a0224e8
Record created2024-06-27
Record modified2024-06-27
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