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학술저널
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한국조명·전기설비학회 조명·전기설비학회논문지 Journal of the Korean Institute of Illuminating and Electrical Installation Engineers Vol.23 No.3
발행연도
2009.3
수록면
30 - 37 (8page)

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초록· 키워드

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The majority of the causes for the failures of power transformers in operation are mechanical defects due to vibration. The vibration phenomenon was measured from the power transformers in operation in the substations. The vibration measurement was perfomed in a 6x4 structure on one side of each transformer. The vibrations of the measured points were presented in two and three dimensions and analyzed. The results, according to the elapsed year of the transformer and the load capacity to the transformer, were analyzed. These results could be used as basic data with which to establish vibration standards for power transformers. In addition, the load capacity-vibration phenomenon correlation was examined and regression analysis was performed to derive the estimation function. The vibration phenomenon according to the elapsed years was also estimated to derive the function. Then the analysis of the power transformers was used to set vibration standards for them based on the vibration data.

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Abstract
1. Introduction
2. Regression Analysis
3. Vibration Test
4. Test Results and Analysis
5. Conclusion
Acknowledgements
References
Biography

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