The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of Shorted Turns in Turbine Generator Rotor Windings

터빈 발전기 회전자 권선의 층간단락 분석

  • Received : 2011.05.26
  • Accepted : 2011.07.05
  • Published : 2011.08.01
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Abstract

Turbine generator(13.8 kV, 137.5 MW) has high bearing vibration at rotation speed. Shorted turns in generator rotor windings have strong correlation with increased field current which is thus related to increase in bearing vibration. The recurrent surge oscillograph (RSO) test is performed on the rotor winding in turbine generator to detect shorted turns. The result of the RSO test indicates that shorted turns of rotor winding are generated in two locations. The RSO test was capable of identifying the presence, number, and location of shorted turns in generator rotor windings.

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References

  1. 김희동, 이영준, 박종정, 주영호, "발전기 회전자 권선의 운전중 층간단락 탐지", 대한전기학회 논문지, Vol. 48C, No. 3, pp. 192-199, 1999.
  2. M. P. Jenkins, "On-Line Monitoring of Rotor Shorted Turns", IEE Conference Publication No. 401, pp. 55-60, 1994.
  3. 김희동, 김병한, 황규호, "가스터빈 발전기 회전자 권선용 글라스/에폭시 복합재료의 화학적, 열적 및 유전특성", 대한전기학회 춘계학술대회 논문집, pp. 12-15, 1999.
  4. D. R. Albright, Interturn Short-Circuit Detection, Generatortech. Inc., pp. 1-8, 1993.
  5. 김희동, 김병래, "가스터빈 발전기 회전자 권선의 절연 상태 평가", 대한전기학회 논문지, Vol. 57, No. 10, pp. 1818-1821, 2008.
  6. R. T. Hindmarch and J. W. Wood, "Developments in Detecting Interturn Shorts in Generator Rotors using the RSO Technique", Dielectric Materials, Measurements and Application Fifth International Conference, pp. 305-308, 1988.