NDLI: One novel type of UHF antenna for locating partial discharge and simulation of UHF signal propagation within transformer

Content Provider	IEEE Xplore Digital Library
Author	Zhu Chaojie Yin Yi Lu Yuncai Fei Yijun
Copyright Year	2012
Description	Author affiliation: Jiangsu Electric Power Company Research Institute, Nanjing, China (Lu Yuncai; Fei Yijun) \|\| Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China (Zhu Chaojie; Yin Yi)
Abstract	In recent years, ultra high frequency (UHF) method has become a widely used method to detect partial discharge (PD) in transformers. For this method, we should pay attention to two crucial problems: (i) How to detect the UHF signals radiated from PDs; (ii) How to confirm the PD locations accurately. In this paper, a new type of antenna, named multi-element monopole antenna or Goubau antenna, is introduced to the area of PD detection. The antenna was designed using electromagnetic simulation software. The simulation software computed return loss shows a reasonable agreement with tested data. Both of the results turn out that operating frequency range of the antenna is about 400–1000MHz. To study the influence brought by inner structures of transformer, the time-delay effects caused by core and winding respectively were simulated using FDTD method. It is concluded that time-delay effect caused by core is obvious, while the effect caused by winding is not.
Starting Page	1179
Ending Page	1182
File Size	429773
Page Count	4
File Format	PDF
ISBN	9781467310192
e-ISBN	9781467310208
DOI	10.1109/CMD.2012.6416371
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-23
Publisher Place	Indonesia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Partial discharges UHF antenna Windings simulation UHF antennas Transformer cores time-delay Power transformers Impedance partial discharge
Content Type	Text
Resource Type	Article

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