Title :
Space charge formation in water-treed insulation
Author :
Ohki, Y. ; Ebinuma, Y. ; Katakai, S.
Author_Institution :
Waseda Univ., Tokyo, Japan
fDate :
10/1/1998 12:00:00 AM
Abstract :
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
Keywords :
space charge; trees (electrical); carrier injection; conductivity; electric field; insulation; interfacial polarization; space charge distribution; water tree; Acoustic pulses; Conductivity; Dielectrics and electrical insulation; Electrodes; Permittivity; Polarization; Power cables; Space charge; Trees - insulation; Voltage measurement;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
