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Vacuum applied to coil and draws epoxy into coil mold. COIL. Mold. Epoxy enters the coil mold. NCSX Modular Coil Vacuum-Pressure-Impregnation. VPI Process. VPI Cure Cycle. Vacuum-Pressure-Impregnation
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Vacuum applied to coil and draws epoxy into coil mold COIL Mold Epoxy enters the coil mold NCSX Modular Coil Vacuum-Pressure-Impregnation VPI Process VPI Cure Cycle Vacuum-Pressure-Impregnation “VPI” is the process used to fill a coil with epoxy. It’s purpose is to enhance both mechanical and dielectric properties of the coil. Using a combination of vacuum and pressure, the coils are filled. . - Vacuum and epoxy fill lines VPI Delivery Schematic for Modular Coils Curing oven Epoxy fill tank Viscosity measurements are taken to monitor the consistency of the epoxy resin during VPI Typical VPI setup