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A Study on the Water Absorption Test of Generator Stator Windings Using Probability Distributions
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 Title & Authors
A Study on the Water Absorption Test of Generator Stator Windings Using Probability Distributions
Kim, Hee-Soo; Bae, Y.C.; Kim, Hee-Jeong; Na, Myung-Hwan;
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 Abstract
Water absorption in water-cooled generator stator windings can cause serious accidents such as insulation breakdown and it brings a generator to the unexpected sudden outage. Accordingly, it is important to diagnose the water absorption of them in the effective operation of power plant. Especially, the capacitance value which is measured for diagnosis is very small so the special diagnosis methods like stochastic theory are needed. KEPRI developed the water absorption test equipment and diagnosis technology for them. In this paper we propose that water absorption test of generator stator windings using probability distributions. The proposed diagnosis technology is applied to the real system and the results of water absorption test for stator windings are agreed to them of water leak test.
 Keywords
Generator stator windings;water absorption test;water leak test;insulation breakdown;outlier detection;
 Language
Korean
 Cited by
 References
1.
서순근 (2009). , 이레테크

2.
정해성, 박동호, 김재주 (2003). <신뢰성 분석과 응용>, 영지문화사