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

doi:10.1109/94.910433

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

^*Corresponding author for this work

Kagami Memorial Research Institute for Materials Science and Technology

Research output: Contribution to journal › Article › peer-review

29 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 language	English
Pages (from-to)	111-116
Number of pages	6
Journal	IEEE Transactions on Dielectrics and Electrical Insulation
Volume	8
Issue number	1
DOIs	https://doi.org/10.1109/94.910433
Publication status	Published - 2001 Feb

ASJC Scopus subject areas

Electrical and Electronic Engineering

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AU - Li, Y.

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

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