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

fYear

1991

fDate

8-12 Jul 1991

Firstpage

1218

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICPADM.1991.172298

Filename

172298