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세라믹 커플러를 이용한 고전압회전기 고정자권선의 On-line 및 off-line 부분방전 특성 시험 및 분석

Analysis and lest of On-line and off-line PD Testing for High Voltage Rotating Machines Stator Windings using Ceramic Coupler

  • 오봉근 (한국수자원공사 수자원연구원) ;
  • 김현일 (한국수자원공사 수자원연구원) ;
  • 강성화 (충청대학 소방안전과) ;
  • 임기조 (충북대학교 전기전자컴퓨터공학부)
  • 발행 : 2007.10.01

초록

Partial discharge(PD) test can be performed either when the rotating machine is not operating(off-line) or during normal machine operation(on-line). This paper presents an on-line and off-line PD test on a large hydro-generator and induction motor using the same PD acquisition system(PDAS) and ceramic coupler(CC) sensor. PD signal characteristics of CC sensor proved similar with that of epoxy mica coupler(EMC) sensor as a results of PD test for simulated defect winding and frequency response test. A comparison of on-line and off-line PD test for PD characteristic parameters-phase resolved PD(PRPD), maximum PD value(Qmax) and PD occurrence energy(POE)-indicated that on-line PD test could reliably and effectively diagnose insulation conditions which were verified by off-line PD test.

참고문헌

  1. IEEE Std 1434-2000, 'IEEE Trial-Use Guide to the Measurement of Partial Disch-arges in Rotating Machinery', Aug., 2000
  2. W. Hutter, 'Partial discharges-Part XII:Partial discharge detection in rotating electrical machines', IEEE Electrical Insulation Magazine, Vol. 8, No. 3, p. 21, 1992
  3. H. Zhu, V, Green, M. Sasic, and S. Halliburton, 'Increased sensitivity couplers for In-service PD measurement in rotating machines', IEEE Transactions on Energy Conversion, Vol. 14, No. 4, p. 1184, 1999 https://doi.org/10.1109/60.815045
  4. 강동식, 선종호, 황돈하, 윤영호, 신병철, 오봉근, '13 kV급 수력발전기 고정자 권선용 on-line 부분방전 측정 시스템 개발 및 현장적용 평가', 전기학회논문지, 55C권, 4호, p. 189, 2006
  5. 박재준, 이성룡, 문대철, '고압전동기 고정자권선의 PRPD 부분방전 결함신호 해석', 전기전자재료학회논문지, 19권, 10호, p. 942, 2006 https://doi.org/10.4313/JKEM.2006.19.10.942
  6. 오봉근, 김현일, 강성화, 임기조, '수력발전기 고정자 노후권선의 모의결함 시편에 대한 부분 방전 파라미터 변화분석', 전기전자재료학회논문지, 20권, 7호, p. 645, 2007 https://doi.org/10.4313/JKEM.2007.20.7.645
  7. C. Hudon and M. Melec, 'Partial discharge signal interpretation for generator diagnostics', IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 12, No. 2, p. 297, 2005 https://doi.org/10.1109/TDEI.2005.1430399

피인용 문헌

  1. Investigation of Simulation and Measuring Algorithm of Partial Discharge for Diagnosis of Electric Machinery Deterioration vol.25, pp.8, 2011, https://doi.org/10.5207/JIEIE.2011.25.8.030
  2. Comparison of Artificial Neural Network for Partial Discharge Diagnosis vol.14, pp.9, 2013, https://doi.org/10.5762/KAIS.2013.14.9.4455