A mounting device for rotating electric machines

H - Electricity – 02 – K

Patent

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Details

H02K 1/18 (2006.01)

Patent

CA 2278600

The present invention relates to a mounting device (80) for reducing short- circuiting forces that are transmitted from a stator core to a stator body in a rotating electric machine comprising a stator with windings drawn through slots in the stator, wherein the stator core is composed of a number of packs (82), each of which includes a number of metal sheets, or of a number of metal sheets, each pack (82) or metal sheet having two identical grooves (84) arranged for cooperation with wedge members (86) designed to join together packs (82) or metal sheets, and wherein the stator body comprises beams (88), each connected to a wedge member (86). The mounting device (80) also comprises a connector (90) arranged through the beam (88) and secured in the wedge member (86) in order to connect the beam (88) and wedge member (86) in such a manner as to permit sliding between the wedge member (86) and the beam (88) in the event of short-circuiting. The windings also consist of high-voltage cable (10).

Cette invention a trait à un dispositif de montage (80) permettant de réduire des forces de court-circuitage partant du noyau de stator en direction du corps de stator dans une machine électrique tournante comportant un stator dont les bobinages traversent les encoches qu'il renferme. Le noyau du stator est constitué d'un certain nombre de blocs (82) comprenant, chacun, un certain nombre de feuilles métalliques ou constitués de ces feuilles métalliques, deux gorges identiques (84)étant ménagées dans chaque bloc de feuilles métalliques (82) et agencées pour coopérer avec des éléments à coins (86) conçus pour réunir les blocs de feuilles métalliques (82). Le corps du stator comporte des montants (88) raccordés, chacun, à un élément à coins (86). Le dispositif de montage (80) comporte également un connecteur (90) traversant le montant et assujetti dans l'élément à coins (86) afin de relier le montant (88) et l'élément à coins (86) de manière à permettre un glissement entre l'élément à coins (86) et le montant (88) en cas de court-circuit. Les bobinages sont également constitués d'un câble de haute tension (10).

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