Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2003.07c
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- Pages.1626-1628
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- 2003
Development of Lightning Arrester Degradation Monitoring System Using ZCT
ZCT틀 이용한 피뢰기 열화 감시 시스템 개발
- Park, J.N. (LG Industrial System Electrotechnology R&D Center) ;
- Lee, Y.H. (LG Industrial System Electrotechnology R&D Center) ;
- Jang, S.H. (LG Industrial System Electrotechnology R&D Center) ;
- Kim, P.S. (LG Industrial System Electrotechnology R&D Center) ;
- Shin, Y.S. (LG Industrial System Electrotechnology R&D Center) ;
- Kim, Y.G. (LG Industrial System Electrotechnology R&D Center) ;
- Seo, J.M. (LG Industrial System Electrotechnology R&D Center)
- 박정남 (LG산전(주) 전력연구소) ;
- 이용희 (LG산전(주) 전력연구소) ;
- 장수형 (LG산전(주) 전력연구소) ;
- 김필석 (LG산전(주) 전력연구소) ;
- 신양섭 (LG산전(주) 전력연구소) ;
- 김영근 (LG산전(주) 전력연구소) ;
- 서정민 (LG산전(주) 전력연구소)
- Published : 2003.07.21
Abstract
The lightning arrester is a very important overvoltage protection device in the electric power system. Therefore, the inspection of lightning arrester whether it keeps its performance or not properly has close related to verifying the safety confidence of the electric power system. But the development of the deterioration measuring method and on-line detecting system, is necessary to monitor the deterioration of the lightening arrestor. In this paper, we developed the lightning arrester degradation monitoring system. This system detected leakage current of lightning arrester by using the ZCT, and analyze the third harmonics ingredient of leakage current using DFT method in the Data Acquisition Unit(DAU). The analyzed current signal is transmit to the Human-Machine Interface(HMI), and HMI alarmed when accident are occurred and informed with the amplitude of leakage current to the operator.
Keywords