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Comparative Analysis of Vibration Signal of Converter Transformer and AC Power Transformer

In this paper, in order to carry out vibration test of converter transformer, principle of vibration, test equipment and arrangement of sensors was studied. Several characteristics of vibration signal, such as amplitude and proportion of basic frequency, main frequency, amplitude and proportion of main frequency, complexity of frequency domain spectrum, were chosen as muti-dimension characteristics of the vibration signals. And the difference of vibration signals between converter transformer and AC power transformer were studied.