Calibration of capacitive couplers for Online PD detection in HV cables

被引：19
|
作者：
Wang, P [1 ]
Lewin, RL
Sutton, SJ
机构：
[1] Univ Southampton, Dept Elect & Comp Sci, Elect Power Engn Grp, Southampton SO17 1BJ, Hants, England
[2] Natl Grid Transco, Warwick CV34 6DA, England
来源：
IEEE ELECTRICAL INSULATION MAGAZINE | 2005年 / 21卷 / 03期
关键词：
Online PD measurement; cables; capacitive couplers; calibration; pulse injection; frequency response measurements; transfer function;
D O I：
10.1109/MEI.2005.1437605
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：
Possible online quantification and calibration methods for capacitive couplers were investigated experimentally. Calibration methods using two couplers were investigated as possible alternative methods to terminal injection. Real PD tests were undertaken on a high voltage cable containing a grounded needle within its bulk insulation. The measured results from two capacitive couplers provide PD site location, the propagation velocity of the PD signal, and estimate the attenuation of the PD pulse.
引用
收藏
页码：28 / 39
页数：12
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