Space charge formation in water-treed insulation

Yoshimichi Ohki, Y. Ebinuma, S. Katakai

    Research output: Contribution to journalArticle

    25 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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