Characterization of aging and degradation of 28kV polymeric insulators using electrical impedance spectroscopy

Raji Sundararajan, A. M. Kannan, Edwin Romero, Ignacio Molina

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    5 Scopus citations

    Abstract

    Electrical characterization of materials, including polymers has been performed using Electrical Impedance Spectroscopy. The impedance (Z) spectra gives details about the dielectric dispersion of the resistivity (or conductivity) and the relative permittivity of the material with frequency. This enables one to assess the condition of the material, such as the ripening of fruit, or the aging of polymeric insulators. In this research, Autolab/PGSTAT30 Impedance analyzer was used to assess the aging of 28kV Thermoplastic elastomeric (TPE) insulators under multistress acid rain conditions. The aged samples showed increased conductance compared to virgin. However, the imaginary Z value (corresponding to the capacitive reactance) of the aged samples were lower than the virgin sample values. The reduction varied for HV and LV samples. The results indicate that impedance spectroscopy can be effectively used to study surface structural modification caused by aging.

    Original languageEnglish (US)
    Title of host publication2006 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
    Pages461-464
    Number of pages4
    DOIs
    StatePublished - Dec 1 2006
    Event2006 Conference on Electrical Insulation and Dielectric Phenomena, CEIDP - Kansas City, MO, United States
    Duration: Oct 15 2006Oct 18 2006

    Publication series

    NameAnnual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
    ISSN (Print)0084-9162

    Other

    Other2006 Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
    CountryUnited States
    CityKansas City, MO
    Period10/15/0610/18/06

    ASJC Scopus subject areas

    • Engineering(all)

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  • Cite this

    Sundararajan, R., Kannan, A. M., Romero, E., & Molina, I. (2006). Characterization of aging and degradation of 28kV polymeric insulators using electrical impedance spectroscopy. In 2006 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP (pp. 461-464). [4105470] (Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP). https://doi.org/10.1109/CEIDP.2006.311969