Corona resistant insulating coating for end windings of a dem

An end winding (10) of a high voltage aircooled ac generator or motor is made more resistant to surface deterioration by corona activity by using a paint whose binder contains at least 20% by weight silicone. An end winding, including its insulated conductors (12) and separator and support structure...

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Bibliographic Details
Main Authors JAMES JONATHAN GRANT, MARK MARKOVITZ
Format Patent
LanguageEnglish
Published 29.12.1999
Edition6
Subjects
BASIC ELECTRIC ELEMENTS
CABLES
CONDUCTORS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
INSULATORS
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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Summary:An end winding (10) of a high voltage aircooled ac generator or motor is made more resistant to surface deterioration by corona activity by using a paint whose binder contains at least 20% by weight silicone. An end winding, including its insulated conductors (12) and separator and support structures (14,16), are coated with the paint whose composition includes a solvent or thinner, optional pigments, and the binder containing at least 20% by weight silicone. The balance (if any) of the binder can be, for example, an alkyd, acrylic, phenolic or epoxy resin.
Bibliography:Application Number: GB19990012431