Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2002.07c
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- Pages.1846-1849
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- 2002
On-Line Diagnosis Method for Generator Rotor Windings
발전기 운전중 회전자 진단에 관한 연구
- Lee, Young-Jun (Korea Electric Power Research Institute(KEPRI)) ;
- Kong, Tae-Sik (Korea Electric Power Research Institute(KEPRI)) ;
- Kim, Hee-Dong (Korea Electric Power Research Institute(KEPRI)) ;
- Ju, Young-Ho (Korea Electric Power Research Institute(KEPRI))
- Published : 2002.07.10
Abstract
A shorted-turn test was performed at the Sininchon combined cycle power plant on gas turbine generators. The test was conducted using a permanent flux probe and on-line diagnosis system. The flux probe installed in the generator air gap senses the field winding slot leakage flux and produces a voltage proportional to the rate of change of the flux. This pattern of flux variation is a signature unique to each field winding. We have also applied a voltage waveform analysis technique that can identify the pole location, slot number and number of shorted-turn with each slot.
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