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基于空载合闸振动信号的变压器绕组松动故障诊断研究

LI Yong,ZHU Hao,XU Hong-hua,WANG Chun-ning,MA Hong-zhong,YAN Jin

IEEE PES Asia-Pacific Power and Energy Engineering Conference（2020）

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Abstract
提出了一种基于空载合闸暂态振动信号的变压器绕组松动故障诊断方法,利用变分模态分解分解后模态分量的频谱峰值和振动信号的样本熵值实现对故障程度的判断,并通过试验验证了该方法的正确性.
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Key words
Transformer,No-load switching on,Loose winding,Wavelet packet-energy spectrum,Vibration signal
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