Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1999.07e
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- Pages.2089-2092
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- 1999
On-Line and Off-Line Partial Discharge Properties in the Pumped Storage Generator Stator Windings
양수발전기 고정자 권선에서 운전중 및 정지중 부분방전 특성
- Kim, Hee-Dong (Korea Electric Power Research Institute) ;
- Ju, Young-Ho (Korea Electric Power Research Institute) ;
- Yoon, Dea-Hen (Chungpyong Storage Power Plant)
- Published : 1999.07.19
Abstract
Partial discharge(PD) tests were performed both when the pumped storage generator(rated 13.8kV and 220MVA) was on-line and off-line. This generator has been equipped with 12 bus coupler sensors in directional mode. PD tests were conducted using partial discharge analyzer(PDA), partial discharge meter(PDM) and digital partial discharge detector. PDA showed that the patterns of the normalized quantity number(NQN) and the partial discharge magnitude are in accord with on-line and off-line. The insulation condition was estimated by diagnostic tests(off-line) such as PD magnitude and dissipation factor.
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