Under the impact of short-circuit current

the vibration characteristics of transformer is an important feature of vibration analysis method. To study this feature

firstly construct impact platform of influence of shortcircuit current on transformer vibration

and then use this platform to study the distribution rule of correlation coefficient of transfer function and correlation coefficient threshold selection. On this basis

by waveform timedomain analysis and simulation research

explore the effects of winding short-circuit fault on transfer function

and finally study the relationship between the preload and the correlation coefficient

via the above study

define the relationship between the vibration characteristics of transformers under impact of short-circuit current

it laid the foundation for further analysis on transformer fault by vibration method.