Title :
Three-dimensional space charge distribution in water tree tip using the pulsed electroacoustic method
Author :
Li, Ying ; Kawai, Jiro ; Ebinuma, Yasumitsu ; Imaizumi, Yoichi ; Suzuki, Ken ; Tanaka, Yasuhiro ; Takada, Tatsuo
Author_Institution :
Showa Electr. Wire & Cable Co. Ltd., Kawasaki, Japan
Abstract :
Space charge is an important factor in treeing, aging and electrical breakdown processes in solid insulating materials under high electric fields. The pulsed electroacoustic (PEA) method is one of the most effective methods of direct investigation of the formation and dynamics of space charge distribution under plane-plane and coaxial electrode configurations. This paper describes our research on further developing the PEA method to measure three-dimensional space charge distribution under fine probing electrode configurations. Using this system, space charge distribution in each individual water tree can be profiled
Keywords :
XLPE insulation; acoustic applications; charge measurement; insulation testing; space charge; trees (electrical); XLPE; aging; coaxial electrode configuration; electrical breakdown processes; fine probing electrode configurations; high electric fields; plane-plane electrode configuration; pulsed electroacoustic method; solid insulating materials; three-dimensional space charge distribution; water tree tip; Aging; Coaxial components; Current measurement; Dielectrics and electrical insulation; Electric breakdown; Electrodes; Pulsed electroacoustic methods; Solids; Space charge; Trees - insulation;
Conference_Titel :
Electrets, 1996. (ISE 9), 9th International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-2695-4
DOI :
10.1109/ISE.1996.578072
