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http://dx.doi.org/10.5207/JIEIE.2004.18.4.112

Estimation of Partial Discharge Sources in a Model GIS through the Analysis of UHF Signals  

전재근 (산일전기주식회사 기술부)
곽희로 (숭실대학교 공과대학 전기제어시스템공학)
노영수 (숭실대학교 전기제어시스템공학)
이동준 (태강 이엔시 예방진단팀)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.18, no.4, 2004 , pp. 112-117 More about this Journal
Abstract
This paper describes the analysis of the UHF signal characteristics due to the partial discharge sources which can exist in a GIS. For the experiment, a model GIS was made and 5 types of discharge source were created as follows; corona discharge, surface discharge, void discharge, discharge due to free particle, discharge from floating electrode. The frequency spectra and the phase characteristics of UHF signals were induced by UHF signal analysis. The results were quantified to systematically adapt to analyze the PD sources in the GIS and utilized as algorithm data based on the neural network for Back-Propagation Algorithm with a multi-layer structure. The perception rate of the constructed algorithm showed approximately 94[%] and 82[%] in learning and testing data, respectively.
Keywords
UHF signal; partial discharge; GIS; algorithm;
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