| 摘要 |
PROBLEM TO BE SOLVED: To suppress a temperature rise of a dynamoelectric machine and reduce dimensions of a slot. SOLUTION: A composite material, composed of a glass cloth and a polymer film, which is a polyimide film for each insulation or the like and laminated with the glass cloth, is inserted into a core slot in place of an aromatic polyamide paper sheet, which is a conventional slot liner, so as to have the glass cloth side brought into contact with an inner surface of the core slot. A formed coil, composed of shaped insulated conductors, covered with predetermined turns of earth insulation films, is inserted into the slot. Then, the formed coil and the slot liner are impregnated with liquid impregnating resin in vacuum and with pressure, and the resin is cured by heat to form a firm insulating layer.
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