3E

3E uses several types of insulation systems, including:

• epoxy based Vacuum Pressure Impregnation system
• polyester based dip & bake
• high temperature Nomex brand cell, phase & wedge insulation standard

 

Vacuum Pressure Impregnation (VPI)

VPI is a process for treating new or existing windings utilizing a combination of vacuum, pressure and heat to insure complete penetration of the resin.

Premature failures can occur during normal operation as motor windings are subjected to physical stress from starting, vibration, contamination and thermal cycling. 3E's VPI process provides a winding that will withstand the operating environment. This process, along with epoxy resin, greatly increases the mechanical strength and provides a virtually void-free winding that helps to dissipate unwanted heat from the slot area of the iron core.