CET Technology Installs New Vacuum Pressure Impregnation (VPI) System for the Manufacture of High Performance Standard and Custom Transformers and Inductors
In June 2015, CET Technology installed a new KI-600 vacuum pressure impregnation system. Such equipment greatly enhances the quality of a CET standard or custom transformer. Varnish, a thermally-cured polymer resin, is used on transformers to protect the windings from environmental elements, such as moisture and other impurities. Varnish also helps reduce vibration of the windings, which reduces audible noise and extends the life of a transformer. There are basically two types of varnish process: dip and vacuum impregnation.
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