Estimation of conductivity and permittivity of water trees in PE from space charge distribution measurements

T. Toyoda, S. Mukai, Y. Ohki, Y. Li, T. Maeno

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

Using an improved pulsed electroacoustic (PEA) system which is capable of measuring space charge distribution at minimum intervals of 25 μs, the charge distribution inside water-treed polyethylene (PE) was examined. From the results, the frequency dependencies of conductivity and permittivity were examined for water trees grown in PE. The conductivity of the water-treed region is found to be >1010 × higher than that of non-treed regions, while the permittivity increase is only slight.

Original languageEnglish
Pages (from-to)111-116
Number of pages6
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Volume8
Issue number1
DOIs
Publication statusPublished - 2001 Feb 1

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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