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 - 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
Country/TerritoryUnited States
CityKansas City, MO
Period10/15/0610/18/06

ASJC Scopus subject areas

  • Engineering(all)

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