Space charge formation in water-treed insulation

Y. Ohki*, Y. Ebinuma, S. Katakai

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


Observations of the space charge distribution around water trees are reviewed, and the nature of water trees analyzed from those results is discussed. It was concluded that at least two mechanisms are responsible for the formation of space charges. One is interfacial polarization due to the high conductivity of a tree channel, and the other is carrier injection from the tree tip at high electric fields.

Original languageEnglish
Pages (from-to)707-712
Number of pages6
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Issue number5
Publication statusPublished - 1998

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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