An operating procedure for the detection, identification, and location of partial discharge in cast-resin dry-type transformers

Chien Yi Chen, Ching Chau Su, Jia Bin Wang, Cheng Chi Tai, Jiann Fuh Chen, Shih Shong Yen

研究成果: Conference contribution

摘要

The detection and location of partial discharge (PD) in cast-resin dry-type transformers using the acoustic emission (AE) method is very difficult: the sound in filled epoxy is highly attenuated and is easily interfered with external sound sources. In addition, there is no operating procedure for the detection, identification and location of PD in cast-resin dry-type transformers up to present. In this paper, we used a waveguide and a specially designed AE-sensor pair to overcome the shortcomings of the AE method. Test results indicate that the two techniques used not only greatly improve the sensitivity but also increase the reliability of the AE measurement system. In a practical case using the proposed techniques, the winding with PD was found in a high-voltage transformer, and further analysis was carried out to restrict the scope of PD to two points which are bilaterally symmetrical about the waveguide. An operating procedure for detection, identification and localization of PD is developed based upon the techniques described.

原文English
主出版物標題2011 7th Asia-Pacific International Conference on Lightning, APL2011
頁面581-585
頁數5
DOIs
出版狀態Published - 2011 十二月 1
事件2011 7th Asia-Pacific International Conference on Lightning, APL2011 - Chengdu, China
持續時間: 2011 十一月 12011 十一月 4

出版系列

名字2011 7th Asia-Pacific International Conference on Lightning, APL2011

Other

Other2011 7th Asia-Pacific International Conference on Lightning, APL2011
國家China
城市Chengdu
期間11-11-0111-11-04

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry

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  • 引用此

    Chen, C. Y., Su, C. C., Wang, J. B., Tai, C. C., Chen, J. F., & Yen, S. S. (2011). An operating procedure for the detection, identification, and location of partial discharge in cast-resin dry-type transformers. 於 2011 7th Asia-Pacific International Conference on Lightning, APL2011 (頁 581-585). [6110193] (2011 7th Asia-Pacific International Conference on Lightning, APL2011). https://doi.org/10.1109/APL.2011.6110193