INSULATION FOR ROTATING ELECTRICAL MACHINES

摘要

A mica-based insulation based on impregnating resin for rotating electrical machines is provided. The mica-based impregnating resin includes an epoxy resin/anhydride mixture and a nanoparticulate filler, wherein the nanoparticulate filler is a nanoparticulate silicon dioxide and/or aluminum oxide modified by a silanizing reagent. Further, a method of producing the mica-based impregnating resin is provided.