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

Volume

15

Issue

6

fYear

2008

fDate

12/1/2008 12:00:00 AM

Firstpage

1570

Lastpage

1575

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;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

Conference_Location

12/1/2008 12:00:00 AM

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2008.4712659

Filename

4712659