有在役高压电缆附件PD诊断现场试验的实践经验

Conference Record of the 2006 IEEE International Symposium on Electrical Insulation Pub Date : 2006-06-11 DOI:10.1109/ELINSL.2006.1665365

E. Lemke, T. Strehl, W. Weissenberg, J. Herron

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引用次数: 11

摘要

本文讨论了在工作电压下，利用超宽带局部放电探测对高压电缆终端进行预防性局部放电诊断。为了定量地评估检测到的PD水平为“等效表观电荷”，进行了灵敏度检查。结果表明，在PD检测灵敏度低至很少pC的情况下，该方法可以很好地识别出gis电缆终端中潜在的PD缺陷

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Practical experiences in on-site PD diagnosis tests of HV power cable accessories in service

The presented paper deals with preventive on-site PD diagnostics of HV cable terminations under operation voltage using an ultra-wide-band (UWB) PD probing. In order to assess the detected PD level quantitatively as "equivalent apparent charge" a sensitivity check has been performed. The results reveal that by means of the applied method potential PD defects in GIS-cable terminations could well be recognized where a PD detection sensitivity as low as few pC was achieved

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Conference Record of the 2006 IEEE International Symposium on Electrical Insulation

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