A band of fabric over the interface between the slot armor and the copper bar of a pole face winding is both resistant to migration of conductive contaminants under the edge of the slot armor and hospitable to the application and retention of an insulating paint layer over such interface. The band of...http://www.google.fr/patents/US4425519?utm_source=gb-gplus-shareBrevet US4425519 - Crack resistant armor termination for pole face winding bars
Crack resistant armor termination for pole face winding bars
