Mcgraw-Edison Company

David J Rolling

Richard M Marusinec

Stewart William Durian

Richard L Stegehuis

Sam J Ferrito

An electrical apparatus includes at least one conductor and an insulation paper surrounding at least part of the conductor. The insulation paper includes a wood pulp fiber, a synthetic fiber, and a binder material. The synthetic fiber is present at between approximately 2 and 25 weight percent.

Electrical apparatus with synthetic fiber and binder reinforced cellulose insulation paper

A transformer includes a core defining a core window, a first coil surrounding a portion of the core and including a portion located within the core window, a second coil surrounding a portion of the core and including a portion located within the core window, and a polymer barrier insulation member that is located at least partially within the core window and positioned between the first coil and the second coil.

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Waukesha, WI, United States of America

David J Rolling