The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS
Transactions ID Number: 29-508
Full Name: Junhua Liu
Position: Ph.D. Candidate
Age: ON
Sex: Male
Address: 800 Dongchuan Road, Shanghai City
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Tel: 34204289-14
Tel prefix: 86-021
Fax: 34204289-16
E-mail address: drunhua@sjtu.edu.cn
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Title of the Paper: research of partial discharge localization method in GIS based on UHF technique
Authors as they appear in the Paper: Junhua Liu, Ming Yao, Chengjun Huang, Linpeng Yao, Hui Wang, Xiuchen Jiang
Email addresses of all the authors: drunhua@sjtu.edu.cn, suvalau@163.com, chjhuang@sjtu.edu.cn, yaolinpeng@sjtu.edu.cn, frankhery@hotmail.com, xcjiang@sjtu.edu.cn
Number of paper pages: 10
Abstract: Some small defects like fix protrusion or free moving particles exist in GIS can induce partial discharge (PD) which will deteriorate insulation condition and eventually cause insulation breakdown when GIS are in service. It is very important to detect and locate the PD signal for early detection of insulation defects and preventing insulation failure. Time of flight method which based on Ultra High Frequency (UHF) technique is widely used for locating PD in GIS for the merits such as simple principle and easy implementation. But in application, the time of flight method can hardly be applied effectively and will induce errors if the initial pulse of the PD signal is small and blurry or its signal-to-noise ratio (SNR) is too low. In this paper, the characteristics of electromagnetic wave (EM-wave) propagation route in GIS were investigated and a new localization method was proposed. The simulation and experiment results show that the EM-wave signals induced by PD i!
n GIS are related with EM-wave propagation routes, which were decided by the location of PD source and detector¡¯s position. The experiment results show that the proposed PD localization method which based on the characteristics of EM-wave propagation route can locate the PD signal well and effectively in the case that the initial pulse of PD signals is very small and blurry when PD source locates near the outer conductor of GIS.
Keywords: GIS, Partial discharge, UHF method, Localization, EM-wave, Propagation route
EXTENSION of the file: .doc
Special (Invited) Session: Investigation of Partial Discharge Localization Method in Time Domain in GIS
Organizer of the Session: 613-247
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