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AssigneeHitachi, Ltd.
InventorsYutaka Higashimura, Yoshimi Kurahara, Hiroshi Miyao, Keiji Suzuki, Mitsuru Onoda, Nobuaki Tanaka
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When a rotating electrical machine winding is inserted into a slot with a protective insulation intervening between them, a semiconductive insulating layer is lap-wound between an interlayer insulating layer of the rotating electrical machine winding and the protective insulation, the semiconductive insulating layer being formed by center-folding a continuous semiconductive sheet in the longitudinal direction. A thermal stress relaxation layer is provided inside the center-folded continuous semiconductive sheet so that thermal stress exerted in thickness direction of the insulating layers is absorbed.
A rotating electrical machine winding in which a semiconductive insulating layer is formed by wrapped taping a semiconductive insulating component, wherein the semiconductive insulating component comprises a continuous semiconductive sheet that is center-folded in a longitudinal direction thereof and a thermal stress relaxation layer disposed inside the center-folded continuous semiconductive sheet, and wherein the continuous semiconductive sheet is formed by coating insulation resin in which carbon filler are mixed to an insulating component.
A semiconductive insulating component used to form a semiconductive insulating layer on a rotating electrical machine winding, the component comprising:
Dependencies are inferred from the claim text.