A Systems Approach to Motor lnsulation

CIM Bulletin, 1969

R. L. BISHOP, Winding and lnsulation Specialist, Small Motor Engineering - lndustrial Apparatus Dept., Canadian General Electric Company Ltd.

This paper discusses some of the materials, processes and systems used in motor insulation. Among the materials mentioned are epoxies, polyesters, mica paper composites and wire enamels. Two processes developed to take advantage of the special characteristics of two of these materials are described, and how these materials are used in several new insulation systems now on the market is discussed. Finally, future trends in motor insulation are outlined.
Keywords: Applications, Composites, epoxy, fibreglass, mica, polyester, varnish, Materials, Mica, micas, Motors, Process, Processes, Systems, Temperature