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介绍了环氧树脂自动压力凝胶(APG)工艺应用于中压互感器制造的基本原理,以及国内应用该工艺压注成型中压互感器的情况。比较了APG工艺在互感器和绝缘件制造应用中的不同,指出了采用APG工艺生产中压互感器的优势和应注意的问题。采用APG工艺压注成型中压互感器,产品电气性能、外观质量、生产效率等均有提高,值得推广,但在一些具体产品的生产工艺方面还有待进一步完善。
The basic principle of epoxy resin automatic pressure gel (APG) process used in manufacturing medium voltage transformer is introduced, and the application of pressure injection molding medium voltage transformer in China is introduced. The differences between APG technology and transformer manufacturing applications are compared, and the advantages and problems that should be noticed when using APG technology to produce medium voltage transformer are pointed out. APG process using pressure injection molding pressure transformer, product electrical performance, appearance quality, production efficiency and so on have improved, it is worth promoting, but in some specific product manufacturing process needs to be further improved.