Performance evaluation of pump generator stator coils with corona resistant polyimide film

A 69 MVA pump-generator with corona resistant filled polyimide film applied as stator coil strand insulation has been returned to service. Design modifications were implemented to take advantage of the new insulation system; testing results of these unique 13 kV stator coils are discussed. Operation data from the rewound machine is presented. This is a companion paper to "Application of Corona Resistant Polyimide Film to Pump Generator Stator Coils" presented at ISEI 2004