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Development and Site Evaluation of the On-line Partial Discharge Measuring System on the 13 kV Class Stator Windings for Hydro Generator  

Sun, Jong-Ho (한국전기연구원 전력설비진단연구그룹)
Hwang, Don-Ha (한국전기연구원 전력설비진단연구그룹)
Yun, Young-Ho (동우전기공업(주))
Shin, Byoung-Chol ((주)인텍C&I)
Oh, Bong-Keun (한국수자원공사 수자원연구원)
Kang, Dong-Sik (한국전기연구원 전력설비진단연구그룹)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers C / v.55, no.4, 2006 , pp. 189-198 More about this Journal
Abstract
In order to improve the reliability of stator windings for hydro generators, it is necessary to detect the defective point and life assessment of the high voltage windings. Especially the on-line partial discharge (PD) test provides the ability to monitor effects, such as slot discharge, internal discharge, and end-winding discharge without interrupting generators, this method has been proven the major testing technology in high voltage rotating machines nowadays. The purpose of this paper is to describe the method of the on-line PD measurement on stator windings for hydro-generator with 13 [kV] class ceramic coupler (CC), on-line PD measuring system, terminal box, and index parameters. Also, the developed PD measuring system and 13 [kV] class CC were installed Daechung-dam generator #2. It was found that this installed sensor and system had good electrical characteristics to detect PD activity during the operating condition with its detection frequency band is between several and several tens MHz.
Keywords
On-line Monitoring; Ceramic Coupler;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 I.M. Culbert, H. Dhirani and G.C. Stone, 'Handbook to Assess the Insulation Condution of Large Rotating Machines (Volume 16)', EPRI publication EL-5036, 1989
2 EIA/IS-692, 'Ceramic Capacitor Qualification Specification', 1996
3 B.A. Lloyd, S.R. Campbell, G.C. Stone, 'Continuous On-line Partial Discharge Monitoring of Generator Stator Windings', IEEE Transactions on Energy Conversion, Vol. 14, No.4, pp. 1131-1137, 1999   DOI   ScienceOn
4 강동식 외, '고압 회전기 On-line 부분방전 측정용 Ceramic Coupler 특성', 대한전기학회 논문지, Vol.51C, No. 5, pp. 205-212, 2002   과학기술학회마을
5 T. W. Dakin et al, 'The Voltage Endurance of Cast Resin', Proc. IEEE International Conference on Electrical Insulation, No. 216. 1973. 06
6 B.A. Lloyd, S.H. Campbell, G.C. Stone, 'Continuous On-line Partial Discharge Monitoring of Generator Stator Windings', IEEE Transactions on Energy Conversion, Vol. 14, No.4, pp. 1131-1137, 1999   DOI   ScienceOn
7 H. Zhu, V. Green, M. Sasic and S. Halliburton, 'Increased Sensitivity of Capacitive Couplers for In-Service PD Measurement in Rotating Machines', IEEE Transactions on Energy Conversion, Vol. 14, No. 4, December 1999   DOI   ScienceOn
8 Ken Kimura, Yoshiharu Kaneda, Koji Mio, Satoru Kuroki, Teruya Osawa and Hiraki Tanaka, 'On-line Partial Discharge Monitor for Turbine Generator', Proceedings of the International Conference on Electrical Engineering 1999 (ICEE '99), Vol. 1, pp. 172-175, 1999
9 강동식 외, '권선형기기 On-line 부분방전 측정용 6.6[kV]급 Ceramic Coupler의 신뢰성 평가', 대한전기학회 논문지, Vol. 54C, No. 2, PP. 69-75, 2005   과학기술학회마을
10 IEEE Std 1434-2000, 'IEEE Trial-Use Guide to the Measurement of Partial Discharges in Rotating Machinery', Aug. 2000
11 강동식 외, '수력발전기 고정자권선용 운전중 부분방전 측정 센서 및 시스템 개발', 2005년도 대한전기학회 전기설비전문위원회 추계학술대회 논문집, pp. 103-106, 2005. 11