Patent ID: 8978239
Filing Date: 2015-03-17
Classification: H02K,Y10T

Abstract:
1. A method of preparing a field coil winding assembly, comprising: cleaning a plurality of copper coils; developing, after the cleaning, a copper oxide layer on each of the copper coils by oxidizing each of the copper coils in a solution; rinsing, after the developing, each of the copper coils; drying, after the rinsing, each of the copper coils; applying, after the drying, a turn insulation system to each of the copper coils, wherein the turn insulation system includes a turn insulation and an adhesive, wherein the turn insulation includes at least one of a glass fiber re-enforced polyamideimide, a glass fiber re-enforced polyester, or a glass fiber re-enforced high temperature novolac epoxy; curing, after the applying, each of the copper coils with the turn insulation system; and stacking the plurality of copper coils with the turn insulation system in each of a plurality of rotor slots in a rotor.