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Reliability Improvement of Insulation Diagnosis Using the Hydro-Generator On-Line Partial Discharge Monitoring System  

Ok, Yeon-Ho (한국수자원공사 댐.유역 관리처 발전 설비팀)
Lee, Eun-Woong (충남대학교 전기공학과)
Lim, Jae-Il (한국수자원공사 충주권관리단 발전팀)
Park, Ji-Kun (한국수자원공사 충주권관리단 발전팀)
Kwak, Won-Ku (한국수자원공사 충주권관리단 발전팀)
Lee, Jae-Heung (한국수자원공사 충주권관리단 발전팀)
Shin, Jae-Pil (한국수자원공사 댐.유역 관리처 발전 설비팀)
Shin, Byoung-Chol ((주)인텍C&I)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.58, no.4, 2009 , pp. 469-475 More about this Journal
Abstract
Accident dangerousness of domestic hydro power generators which are operated in Korea is on the increase because of use at the long term. On this, the Off-line diagnosis techniques developed to the On-line by continued domestic technical development since 2000. Especially, On-line insulation diagnosis of domestic hydro power generator is possible by localization of partial electric discharge sensor and On-line insulation diagnosis system. This paper shows the diagnosis result that is applied localized Ceramic Coupler and PDMS-HG(Partial Discharge Monitoring System for Hydro Generator) at four Chung-ju hydro Generator used for 25 years. Particularly, the confidence of insulation diagnosis is improved by using high frequency filter and sampling the partial discharge signals which occur in site. For reviewing the confidence of On-Line insulation diagnosis system, we measured the outside noises and partial discharge signals during practical operation by using the partial discharge diagnosis system of the Full A/D process. And we reviewed the confidence of the On-Line insulation diagnosis system by comparing and analyzing these data.
Keywords
Partial Discharge; Hydro-Generator; Noise Rejection; On-Line Monitoring; Ceramic Coupler;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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