Due to the limitations of installation space and accessory height,the installation of transformers is prone to uneven con-ditions,which can bring certain safety hazards.In order to avoid accidents,this study designed a transformer auxiliary installation de-vice and proposed a new automatic calibration method.The results show that the automatic calibration design of transformer installa-tion device based on random matrix has good evaluation performance for voltage deviation.In terms of stationarity,the state statistics are all greater than the threshold,with an average value of about 4.12,which is higher than the threshold 2 and has good stationarity distribution characteristics.In the evaluation of fixed deviation,the absolute value range of error is within 0.2％,which is lower than the out of tolerance range,and the value of d is between 1.82 and 1.96.The evaluation method can identify situations where the fixed deviation is out of tolerance.Therefore,this indicates that the proposed transformer installation device and its automatic calibration design can meet the installation requirements and deviation inspection requirements,and have practical value.
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