지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.6 No.3
- 발행연도
- 2011.5
- 수록면
- 384 - 390 (7page)
이용수
초록· 키워드
오류제보하기
To evaluate the condition of stator winding insulation in generators that have been operated for a long period of time, diagnostic tests were performed on the stator bars of a 500 ㎿, 22 ㎸ generator under accelerated thermal and electrical aging procedures. The tests included measurements of AC current (ΔI), dissipation factor (tanδ), partial discharge (PD) magnitude, and capacitance (C). In addition, the AC current test was performed on the stator winding of a 350 ㎿, 24 ㎸ generator under operation to confirm insulation deterioration. The values of ΔI, Δtanδ, and PD magnitude in one stator bar indicated serious insulation deterioration. In another stator bar, the ΔI measurements showed that the insulation was in good condition, whereas the values of Δtanδ and PD magnitude indicated an incipient stage of insulation deterioration. Measurements of ΔI and PD magnitude in all three phases (A, B, C) of the remaining generator stator windings showed that they were in good condition, although the Δtanδ measurements suggested that the condition of the insulation should be monitored carefully. Overall analysis of the results suggested that the generator stator windings were in good condition. The patterns of PD magnitude in all three phases (A, B, C) were attributed to internal discharge.
목차
Abstract
1. Introduction
2. Construction of generator stator bars and accelerated aging test
3. Experimental procedure
4. Test results and discussion
5. Conclusion
Acknowledgements
References
참고문헌 (9)
참고문헌 신청
1. [학술지(정기간행물)] - 김희동 / 2002 / 발전기 고정자 권선의 절연열화 메카니즘 분석 / 전기전자재료학회논문지 15 (2) : 119 ~ 126
3. [학술지(정기간행물)] - R. Morin / 2000 / A Three-Phase Multi-Stress Accelerated Electrical Aging TestFacility for Stator Bars / IEEE Trans. on ElectricalConversion 15 (2) : 149 ~ 156
4. [학술지(정기간행물)] - Y. J. Kim / 1992 / Assessment of Deteriorationin Epoxy/Mica Machine Insulation / IEEETrans. on Electrical Insulation 27 (5) : 1026 ~ 1039
5. [학술지(정기간행물)] - K. Kimura / 1995 / The Role of MicroscopicDefects in Multistress Aging of Micaceous Insulation / IEEE Trans. on Dielectrics and Electrical Insulation 2 (3) : 426 ~ 432
6. [보고서] - Y. Ikeda / 1988 / A Method for Diagnosingthe Insulation Deterioration in Mica-Resin InsulatedStator Windings of Generator
3. [학술지(정기간행물)] - R. Morin / 2000 / A Three-Phase Multi-Stress Accelerated Electrical Aging TestFacility for Stator Bars / IEEE Trans. on ElectricalConversion 15 (2) : 149 ~ 156
4. [학술지(정기간행물)] - Y. J. Kim / 1992 / Assessment of Deteriorationin Epoxy/Mica Machine Insulation / IEEETrans. on Electrical Insulation 27 (5) : 1026 ~ 1039
5. [학술지(정기간행물)] - K. Kimura / 1995 / The Role of MicroscopicDefects in Multistress Aging of Micaceous Insulation / IEEE Trans. on Dielectrics and Electrical Insulation 2 (3) : 426 ~ 432
6. [보고서] - Y. Ikeda / 1988 / A Method for Diagnosingthe Insulation Deterioration in Mica-Resin InsulatedStator Windings of Generator
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