Title :
Ultra-wide-band PD diagnostics of power cable terminations in service
Author :
Lemke, Eberhard ; Strehl, Thomas ; Markalous, Sacha ; Weissenberg, Werner
Author_Institution :
LDIC GmbH, Kesselsdorf
fDate :
12/1/2008 12:00:00 AM
Abstract :
During the past decade the PD probing in the ultra-high frequency (UHF) range has successfully been proven for on-site PD diagnostics of GIS cable terminations in service. Therefore it was decided to apply this non-conventional method also for condition assessment of the insulation integrity of outdoor cable terminations. In order to evaluate the minimum detectable PD level the paper deals with comparative PD studies using the IEC and the UHF method. Moreover, experimental studies on the attenuation of PD pulses traveling through power cables were performed in order to assess the spatial selectivity of the UHF method applied.
Keywords :
gas insulated switchgear; partial discharges; power cable insulation; GIS cable terminations; condition assessment; insulation integrity; power cable terminations; ultra-high frequency range; ultra-wide-band partial discharge diagnostics; Frequency measurement; Geographic Information Systems; IEC standards; Power cables; Power transformer insulation; Pulse measurements; Pulse transformers; Testing; UHF measurements; Ultra wideband technology;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
Conference_Location :
12/1/2008 12:00:00 AM
DOI :
10.1109/TDEI.2008.4712659
