External corona shielding for an electrical machine
AssigneeSiemens Aktiengesellschaft
InventorsMario Brockschmidt, Stefan Kempen, Friedhelm Pholmann, Guido Schmidt, Christian Staubach
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Abstract
An external corona shielding for a conductor bar of an electric machine, a main insulating layer sheath on the conductor bar. The shielding has a first ply, which sheaths the main insulating layer, and a second ply, which sheaths the first ply. Each ply is a conductive, impregnatable layer with a sliding layer, wherein the sliding layers of the two plies (20, 21) face one another. Each sliding layer has at least one cutout, wherein the two conductive layers are connected to one another through these cutouts with the aid of a permanently elastic, electrically conductive connection.
Claims11
An arrangement for external corona shielding comprising:
- a conductor bar of an electric machine;
- a main insulating layer shielding the conductor bar;
- an external corona shielding for the conductive bar comprising a first ply which sheaths the main insulating layer and a second ply which sheaths the first ply;
- each of the first and second plies comprises a conductive, impregnatable layer provided with a respective sliding layer and the sliding layers on each of the two plies face one another;
- and
- each of the sliding layers has a plurality of cutouts, the two conductive layers are mechanically and electrically connected to one another through the cutouts by a permanently elastic, electrically conductive connection, wherein the elastic, electrically conductive connection is formed by an adhesive joint between the facing sliding layers.
Dependencies are inferred from the claim text.