Title :
Ac loss current of a penetrated water-treed XLPE
Author :
Ozaki, T. ; Nakamura, S. ; Kawai, J.
Author_Institution :
Dept. of Electron., Mie Univ., Tsu, Japan
Abstract :
A model, by which why ac charging current of water-treed insulation contains higher harmonics is explained, has been developed by the authors. The aim of this paper is to discuss the ac loss current of a penetrated water-treed XLPE by using the model because the sample without a healthy region more directly tells us the dynamic behavior of interconnecting channels between water-filled voids. It has been found that the conductive region where channels are filled with water from voids grows under voltage application and the length of it reaches the whole penetrated water-treed region.
Keywords :
XLPE insulation; losses; trees (electrical); ac charging current; ac loss current; interconnecting channels; penetrated water-treed XLPE; water-filled voids; water-treed insulation; Current measurement; Electric breakdown; Electronic mail; Loss measurement; Permittivity measurement; Resistors; Stress; Thickness measurement; Trees - insulation; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on
Print_ISBN :
0-7803-7725-7
DOI :
10.1109/ICPADM.2003.1218446
