Analysis of UHF PD Monitoring Data by Means of Normalized Cross-Correlation

被引:0
|
作者
Beltle, M. [1 ]
Mueller, A. [1 ]
Tenbohlen, S. [1 ]
机构
[1] Univ Stuttgart, Inst Power Transmiss & High Voltage Technol, D-70174 Stuttgart, Germany
关键词
partical discharge; long-term UHF measurement; monitoring; phase resolved patterns; cross-correlation;
D O I
暂无
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
The paper presents a long-term monitoring example of an aged generator step-up transformer with several PD sources showing different activity. Monitoring data is recorded by the use of the electromagnetic PD measurement method, also known as the UHF-method. The phase resolved PD patterns of collected UHF measuring data are analyzed using cross-correlation. The method searches for characteristics of a typical pattern called template. PRPD patterns of the entire dataset are evaluated. The result is the time dependent occurrence of a specific pattern, respectively a specific PD source.
引用
收藏
页码:103 / 106
页数:4
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