Partial discharge detection for GIS using narrow band ultra-high-frequency (UHF) method

被引：2

作者：

Sun, YZ ^{[1
]}

Yin, H ^{[1
]}

Zhang, QG ^{[1
]}

Yu, FS ^{[1
]}

Wang, H ^{[1
]}

Qiu, YC ^{[1
]}

机构：

[1] Henan Polytech Univ, Sch Elect Engn, Jiaozuo 454100, Peoples R China

来源：

Proceedings of the 2005 International Symposium on Electrical Insulating Materials, Vols, 1-3 | 2005年

关键词：

GIS; partial discharge; UHF;

D O I：

10.1109/ISEIM.2005.193479

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：

Partial discharge (PD) detection is an effective means for monitoring and evaluation of dielectric condition of gas insulated system (GIS). The conventional PD detection methods are too susceptible to disturbances and unsuitable for on-line monitoring. The ultra-high-frequency (UHF) PD detection technique can detect and locate the PD sources inside GIS by detecting electromagnetic wave emitted from PD source The narrow band UHF method was emphasized in this paper, because it can void the electromagnetic interference by selecting the appropriate frequency. A PD detection system using narrow band UHF method was designed. The typical defects that can cause partial discharge in GIS were simulated in laboratory. Using this detection system the PD waveform of frequency domain and time domain could be gotten. The results show that the time domain waveforms of the same defect have very similar distribution characteristics and those of different defect have different ones. So it would be very convenient for the recognition of PD types.

引用

页码：748 / 751

页数：4

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