A current-comparator technique for measuring harmonic distortion of the loss current in high voltage cable insulation

被引：2
|
作者：
Bulinski, AT [1 ]
So, E [1 ]
Bamji, SS [1 ]
机构：
[1] Natl Res Council Canada, Ottawa, ON K1A 0R6, Canada
来源：
2002 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS, CONFERENCE DIGEST | 2002年
关键词：
D O I：
10.1109/CPEM.2002.1034694
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Water trees, a type of deterioration that develops in high voltage cable insulation in a humid environment, introduce harmonic distortion in the waveform of the loss current component of the capacitive current of cable insulation. The measurements of the total harmonic distortion could be used as a diagnostic tool to assess the operating conditions of power cables, in particular polymeric-type cables, and their remaining insulation life. A current-comparator technique to accurately measure the total harmonic distortion, including test results obtained on laboratory-aged specimens and short lengths of field-aged cables containing water trees, is presented.
引用
收藏
页码：10 / 11
页数：2
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