Field application of partial discharge detection and location on 750kV reactor

In this paper, a series of problems of detecting partial discharge (PD) and locating PD sources using acoustic signal on high voltage reactor are systematically discussed. The complex circumstance of acoustic propagation in reactor and the diffraction influence on the acoustic velocity are fully con...

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Bibliographic Details
Published in2016 International Conference on Condition Monitoring and Diagnosis (CMD) pp. 703 - 706
Main Authors Jing Liu, Shenghong Liu, Guoqiang Huang, Jingfeng Wu, Yanhua Han, Shiqiang Zhan, Shuangzan Ren, Yang Liu
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2016
Subjects
acoustic
Acoustic measurements
detection
Inspection
Oil insulation
Oils
partial discharge
Partial discharges
reactor
Time-frequency analysis
Windings
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Summary:In this paper, a series of problems of detecting partial discharge (PD) and locating PD sources using acoustic signal on high voltage reactor are systematically discussed. The complex circumstance of acoustic propagation in reactor and the diffraction influence on the acoustic velocity are fully considered. Based on abnormal signals detected on 750kV reactor in one substation of Shaanxi power grid and time-based distance calculation method, the PD source location was presented according to the acoustic emission (AE) associate with high frequency (HF) earthing current detection. Finally, the effectiveness of previous analysis was proved by the internal inspection.
DOI:10.1109/CMD.2016.7757923