Electrical insulation for rotating machines : design evaluation aging testing and repair Rotating machine insulation systems Evaluating insulation materials and systems Historical development of insulation materials and systems Stator winding insulation systems in current use Rotor winding insulation systems Core laminations and their insulation General principles of winding failure repair and rewinding Stator failure mechanisms and repair Rotor winding failure mechanisms and repair Core lamination insulation failure and repair General principles of testing and monitoring Off line rotor and stator winding tests In service monitoring of stator and rotor windings Core testing Acceptance and site testing of new windings Maintenance strategies