Browse > Article
http://dx.doi.org/10.5370/KIEE.2012.61.7.1056

Performance Evaluation of SHF Sensor for Partial Discharge Signal Detection on DC Rectifier  

Jung, Ho-Sung (한국철도기술연구원)
Park, Young (한국철도기술연구원)
Na, Hee-Seung (한국철도기술연구원)
Jang, Soon-Ho ((주)제나드시스템 연구소)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.61, no.7, 2012 , pp. 1056-1060 More about this Journal
Abstract
Online monitoring system is becoming an essential element of railway traction system for utilized to condition based malignance management and various techniques currently employed in railway traction system. Among the various techniques, it is efficient to detect partial discharge signals by electromagnetic wave detection in order to detect insulation fault of rectifier. Although VHF (Very High Frequency), UHF (Ultra High Frequency) sensors were adopted to detect partial discharge of power facilities, due to characteristics of urban railway, excessive noise occurs from 500 MHz to 1.5 GHz on UHF bandwidth. In this paper a new measurement system able to monitoring the conditions of power facilities on DC substation in metro was studied and set up. The system uses UHF sensors to measure the partial discharge of the rectifier due to electric faulting and dielectric breakdown. Comparison and estimation for performance of SHF sensor which had devised to detect partial discharge signal of urban railway rectifier has conducted. In order to estimate performance of SHF sensor, we have compared the sensor with existing UHF sensor on sensitivity upon frequency bandwidth generated by pulse generator, and also we have verified performance of the SHF sensor by detection results of partial discharge signal from urban railway rectifier.
Keywords
Mold transformer; DC substation; PD; Condition monitoring;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 정호성, 박영, 김형철, "도시철도 변전소의 네트워크 기반 실시간 데이터 취득", 대한전기학회지, 59P권 1호, pp.71-76, 2010   과학기술학회마을
2 IEC 60270 "High-voltage test techniques - Partial discharge measurements", 200-12
3 이상화, 윤영우, 추영배, 강동식, "운전중 부분방전 진단시스템을 위한 복합 잡음제거 기법", 대한전기학회지, 58권 2호, pp. 342-348, 2009.   과학기술학회마을
4 한국철도기술연구원, "도시철도 시설물 표준화 연구(전력) 3차년도 보고서", 도시철도 표준화 2단계 연구개발사업, 2011.
5 정호성, 박영, 어수영, "도시철도 변전소 전력설비 실시간 모니터링 방안 도출", 한국전기전자재료학회논문지, 23권, 4호, pp.333-337, 2010.   과학기술학회마을   DOI   ScienceOn
6 김재문, 김양수, "전기철도 전력시설 진단용 원격진단시스템 구축을 위한 네트워크 설계", 대한전기학회지, 58 권 4호, pp. 432-436, 2009.   과학기술학회마을
7 박영, 정호성, 박철민, 장순호, "DC 변전소 몰드변압기 온라인 상태 감시 시스템 구현", 대한전기학회지, 60권, 9호, pp.1788-1794, 2011   과학기술학회마을   DOI   ScienceOn
8 김인수, 한동우, 양항준, 김경근, 김홍석, 홍정기, 정상기, "무인 변전소 기술 기반의 차세대 경량전철용 전력 감시제어 시스템의 개발", 대한전기학회하계학술대회논문집, 7호, pp.541-544, 2004.
9 강동식, 윤대희, 김용주, 이홍식, 유영호, 박정후, "고압회전기 on-line 부분방전 측정용 Ceramic Coupler 특성", 대한전기학회지, 51C권, 5호, pp. 205-212. 2002.