Title :
New partial discharge detection method for live power cable systems
Author :
Fukunaga, K. ; Tan, M. ; Takehana, H. ; Takahashi, T. ; Yoshida, S.
Author_Institution :
Fujikura Ltd., Tokyo, Japan
Abstract :
A novel partial discharge detector, the REDI (resonance-type high-frequency partial discharge) sensor, is developed for picking up the high-frequency components of partial discharge (PD) current pulses from live cable systems. This sensor was applied to initial AC breakdown tests of practical joints of XLPE (cross-linked polyethylene) insulated cables, and PD could be clearly observed in all cases (the minimum apparent charge was 5 pC with 275 kV cables). The phase characteristics of PD against the applied voltage changed just before the breakdown
Keywords :
cable insulation; electric breakdown of solids; organic insulating materials; partial discharges; polymers; power cables; 275 kV; AC breakdown tests; REDI; XLPE; insulated cables; partial discharge detection method; phase characteristics; power cable systems; resonance-type high-frequency partial discharge; Breakdown voltage; Detectors; Electric breakdown; Partial discharges; Polyethylene; Power cables; Resonance; Sensor phenomena and characterization; Sensor systems; Testing;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1991., Proceedings of the 3rd International Conference on
Conference_Location :
Tokyo
Print_ISBN :
0-87942-568-7
DOI :
10.1109/ICPADM.1991.172298
