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
- 발행연도
- 2014.7
- 수록면
- 41 - 47 (7page)
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초록· 키워드
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The on-line partial discharge (PD) in stator windings of air-cooled gas turbine (GT) generator (119.2MVA, 13.8kV) is measured and analyzed in this paper. This generator was designed by global vacuum pressure impregnation (VPI). The generator failed two times at top bar (16T) of phase B in the stator slot. Six epoxy-mica capacitors were installed in three phases of GT generator. On-line PD test was performed on GT generator using turbine generator analyzer (TGA). TGA showed that the normalized quantity number (NQN) and the PD magnitude(Qm) were high in phase B. Internal discharges were generated in phases A, B and C. The trend analysis of NQN and Qm value are obtained in order to monitor the insulation condition in GT generator stator windings. Phases A and C were in good condition. But phase B had deteriorated significantly.
목차
Abstract
1. 서론
2. 시험방법
3. 가스터빈 발전기의 운전특성
4. 시험결과 및 고찰
5. 결론
References
참고문헌 (9)
참고문헌 신청
1. [학술지(정기간행물)] - R. Morin. / 2000 / A Three-Phase Multi-Stress Accelerated Electrical Aging Test Facility for Stator Bars / IEEE Trans. on Electrical Conversion 15 (2) : 149 ~ 156
2. [학술지(정기간행물)] - G. Griffith. / 2000 / Problems with Modern Air-Cooled Generator Stator Winding Insulation / IEEE Electrical Insulation Magazine 16 (2) : 6 ~ 10
3. [학술지(정기간행물)] - Hee-Dong Kim. / 2006 / Properties of On-Line Partial Discharge in Hydrogenerator Stator Windings / The Transactions of KIEE 55C (4) : 172 ~ 177
4. [학술지(정기간행물)] - Jeong-Ho Chang. / 2011 / Site Evaluation and Application of the On-line and Off-line Test for the 13[kV] Class Hydropower Generator Stator Windings / Journal of the KIIEE 25 (11) : 73 ~ 82
5. [학술지(정기간행물)] - W. McDermid. / 1999 / Experience with Directional Couplers for Partial Discharge Measurements on Rotating Machines in Operation / IEEE Trans. on Energy Conversion 14 (2) : 175 ~ 181
2. [학술지(정기간행물)] - G. Griffith. / 2000 / Problems with Modern Air-Cooled Generator Stator Winding Insulation / IEEE Electrical Insulation Magazine 16 (2) : 6 ~ 10
3. [학술지(정기간행물)] - Hee-Dong Kim. / 2006 / Properties of On-Line Partial Discharge in Hydrogenerator Stator Windings / The Transactions of KIEE 55C (4) : 172 ~ 177
4. [학술지(정기간행물)] - Jeong-Ho Chang. / 2011 / Site Evaluation and Application of the On-line and Off-line Test for the 13[kV] Class Hydropower Generator Stator Windings / Journal of the KIIEE 25 (11) : 73 ~ 82
5. [학술지(정기간행물)] - W. McDermid. / 1999 / Experience with Directional Couplers for Partial Discharge Measurements on Rotating Machines in Operation / IEEE Trans. on Energy Conversion 14 (2) : 175 ~ 181
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