Stator winding bar for an AC electrical machine

The invention relates to the construction of electrical machines. The stator winding bar forming the subject of the invention is of the type comprising solid insulated conductors 3 to 14 and hollow insulated conductors 15 to 20 arranged in two vertical rows 21, 22 and transposed with respect to each other in that part of the bar which is intended to be housed in the corresponding slot of the stator, the mutually adjacent conductors of each pair of solid conductors 3 and 4, 5 and 6, etc., of a single row 21 or 22 being transposed together, and is characterised in that, in the ends of the bar, each solid conductor 3, 10, 4, 9, which, on leaving the said slot portion of the bar, occupies an extreme position in the corresponding row 22 or 21, is separated from the respective conductor 4, 9, 3, 10 with which it has been transposed and is arranged above the respective hollow conductor 15, 18, 20, 17 lying in the extreme position in the other vertical row 21, 22. The invention applies especially to hydroelectric generators and to turbogenerators. L'INVENTION CONCERNE LA CONSTRUCTION DES MACHINES ELECTRIQUES.LA BARRE D'ENROULEMENT DE STATOR FAISANT L'OBJET DE L'INVENTION EST DU TYPE COMPRENANT DES CONDUCTEURS ISOLES PLEINS 3 A 14 ET CREUX 15 A 20 DISPOSES EN DEUX RANGEES VERTICALES 21, 22 ET TRANSPOSES L'UN PAR RAPPORT A L'AUTRE DANS LA PARTIE DE LA BARRE QUI EST DESTINEE A ETRE LOGEE DANS L'ENCOCHE CORRESPONDANTE DU STATOR, LES CONDUCTEURS MUTUELLEMENT ADJACENTS DE CHAQUE PAIRE DE CONDUCTEURS PLEINS 3 ET 4, 5 ET 6, ETC., D'UNE MEME RANGEE 21 OU 22 ETANT TRANSPOSES ENSEMBLE, ET EST CARACTERISEE EN CE QUE, DANS LES TETES DE LA BARRE, CHAQUE CONDUCTEUR PLEIN 3, 10, 4, 9 QUI, A LA SORTIE DE LADITE PARTIE D'ENCOCHE DE LA BARRE, OCCUPE UN POSITION EXTREME DANS LA RANGEE 22 OU 21 CORRESPONDANTE, EST SEPARE DU CONDUCTEUR 4, 9, 3, 10, RESPECTIVEMENT AVEC LEQUEL IL A ETE TRANSPOSE ET EST DISPOSE AU-DESSUS DU CONDUCTEUR CREUX 15, 18, 20, 17, RESPECTIVEMENT SE TROUVANT EN POSITION EXTREME DANS L'AUTRE RANGEE VERTICALE 21 OU 22.L'INVENTION S'APPLIQUE NOTAMMENT AUX GENERATEURS HYDRO-ELECTRIQUES ET AUX TURBOGENERATEURS.