Title :
Water treeing and the diagnostic technique
Author_Institution :
Power Cable Div., Furukawa Electr. Co. Ltd., Tokyo, Japan
Abstract :
The harmfulness and the diagnostic technique of water trees are discussed in this paper. A water tree grows with time progress and initiation voltage of electrical tree falls according to it. Therefore, the diagnostic technique that can detect the water tree itself is required. The various proposals of the diagnostic technique that paid its attention to the nonlinear voltage-current characteristic of water tree part are made in that case.
Keywords :
XLPE insulation; fault diagnosis; insulation testing; power cable insulation; power cable testing; trees (electrical); diagnostic technique; electrical tree falls; initiation voltage; nonlinear voltage-current characteristic; time progress; water treeing; Degradation; Dielectrics and electrical insulation; Electric breakdown; Leak detection; Leakage current; Partial discharges; Power cables; Space charge; Trees - insulation; Voltage;
Conference_Titel :
Transmission and Distribution Conference and Exhibition 2002: Asia Pacific. IEEE/PES
Print_ISBN :
0-7803-7525-4
DOI :
10.1109/TDC.2002.1177688
