Analysis of Failure in Temperature-Rise Test of 10kV Three-Phase Oil-Immersed Amorphous Alloy Transformer

This paper provides the statistical results of 10kV three-phase oil-immersed amorphous alloy transformer sampling inspection of last year. Main unqualified test items are listed and two cases of failing in temperature rise test are analyzed. Then some management control measures are provided to improve product quality and manufacturing standards. This is of great importance in improving the quality of equipment which would be accessed into the grid and maintaining the long-period safe and stable operation of distribute network.