Showing posts with label Vacuum Pressure Impregnation. Show all posts
Showing posts with label Vacuum Pressure Impregnation. Show all posts

VPI Vacuum Pressure Impregnation

Vacuum Pressure Impregnation. A
manufacturing process whereby the coils of a
transformer are impregnated with varnish, resin
or other process fluid by use of both a vacuum
and pressure cycle.