The Transactions of the Korean Institute of Electrical Engineers C (대한전기학회논문지:전기물성ㆍ응용부문C)

The Korean Institute of Electrical Engineers (대한전기학회)
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The Assessment on the Insulation Condition of Generator Stator Windings by a Novel Parameter PDI(Partial Discharge Index)

새로운 파라메타인 부분방전 변화지수에 의한 발전기 고정자 권선의 절연상태 평가

  • 황돈하 (한국전기연구소 Mechatronics연구그룹) ;
  • 박도영 (한국전기연구소 Mechatronics연구그룹) ;
  • 김용주 (한국전기연구소 산업전기연구단 단장) ;
  • 김진봉 (한서대학교 항공기계학과) ;
  • 주영호 (한전 전력연구원 발전계전그룹)
  • Published : 1999.11.01
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Abstract

The monitoring and assessment on the insulation condition of generator stator windings have been an important task of utility companies. The interest for the assessment of insulation condition has been increasing due to the need to keep old generating equipment reliable in order to extend the equipment life and to increase the generating capacity. Even though many developments and research activities for the condition assessment of generator insulation have been performed for decades, the assessment criterion in order to consistently predict the actual insulation condition is still in question. In this paper, the correlation between the parameters and the insulation condition is analyzed through the various non-destructive diagnostic tests in order to establish the assessment criterion on insulation deterioration of generator stator windings. By analyzing the correlation, PDI(Partial Discharge Index) as a novel parameter for the assessment criterion on insulation diagnosis of stator winding is proposed and verified.

Keywords

References

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