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Windings' deformation is one of the most common transformer faults. The paper proposes a new method of Vibration frequency response analysis (VFRA) in order to effectively detect the deformation. A series of experiments have been conducted on a large power transformer to validate its efficiency by testifying its repetitiveness and sensitivity. The first series of experiments used VFRA on phase A under...
A kind of gene expression programming algorithm (GEP) based on factor analysis (FA) is proposed and used for transformer fault diagnosis in this paper. The application of factor analysis can reduce the dimension and the correlation of the feature vectors, so as to decrease the computational complexity of the diagnosis classifier and increase the training and test accuracy. 170 groups of the transformer...
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