Insulating paper is an important insulating material inside the transformer,which can directly affect the reliability and service life of the transformer. In order to solve the problems of aging,quality decline and performance decline of traditional insulating paper with the passage of time,a modified composite insulating paper base material was prepared and its comprehensive performance was analyzed. The results show that when the content of modified material is 4%,the longitudinal tensile strength of the insulating paper is 213.8MPa,the breakdown field strength is 125.0Kv/mm,and the initial decomposition temperature exceeds 550℃,which can satisfy the basic mechanical and electrical properties of the transformer and help the voltage regulator obtain a long service life.
关键词
以纸代塑/变压器/绝缘材料/改性材料
Key words
paper instead of plastic/transformer/insulating material/modified material