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AssigneeCanadian General Electric Company Limited
InventorsPalmer Lonseth, Hubert Gerald Panter, Donald G. Moorby
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According to the invention, electrically conductive paths are formed between the coil armor and the core laminations of dynamoelectric machines for inhibiting corona. This is achieved by injecting an uncured, semi-conducting, elastomeric material between the coil sides and the walls of the core slots by way of the air ducts in the core, and thereafter curing the material. The uncured material has a viscosity which enables it to be forced under pressure between the coil sides and slot walls. The cured material has a resistance high enough not to form eddy current paths between laminations and yet low enough to conduct charge from the coil armor to the core. It is also capable of retaining its strength, elasticity, conductivity, etc., and remaining in place between the coils and core under vibrations, coolant flow, electric stresses, repeated temperature changes, etc., for the normal operating life of the machine.
A gun for injecting an uncured, semiconducting, elastomeric material between coil sides and slot walls of an electromagnetic component of a dynamoelectric machine;
Dependencies are inferred from the claim text.