On-line Condition Monitoring for Power Transformers Based on UHF PD Measurements

被引：1
|
作者：
Liu, Mingjun [1 ]
Zou, Jianzhang [1 ]
Zhou, Qiukuan [1 ]
Li, Yanglin [1 ]
Yan, Nianping [1 ]
机构：
[1] Jiangxi Elect Power Res Inst, Nanchang 330096, Peoples R China
来源：
ADVANCES IN POWER AND ELECTRICAL ENGINEERING, PTS 1 AND 2 | 2013年 / 614-615卷
关键词：
Power transformer; Partial discharge (PD); Ultra high frequency (UHF); On-line condition monitoring; RECOGNITION;
D O I：
10.4028/www.scientific.net/AMR.614-615.1158
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：
An on-line monitoring system based on ultra high frequency (UHF) partial discharge (PD) measurements was developed for power transformers. The UHF PD signals were coupled by a UHF sensor and preprocessed by peak envelope detection technique. The system has high sensitivity, strong ability of interference suppression and well real-time capability according to the simulated experiment in lab and field test of a power transformer. Experimental results showed that the forepart PD faults could be discovered by the analysis of UHF PD signals. The on-line monitoring system has already been applied on a power transformer for years.
引用
收藏
页码：1158 / 1162
页数：5
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