| 1. An armature winding of an electric rotating machine, wherein at least one armature winding bar composed of a plurality
of element wire conductors is provided in a plurality of winding slots formed in a stator core, each of the element wire conductors
is twisted and transposed toward an extension direction of the winding slots in the winding slots, and the element wire conductors
are short-circuited at both ends protruding outside from both ends of slots of the stator core, and
wherein the armature winding has the armature winding bar in which a transposition pitch of the portion of the element wire
conductor provided in a middle zone is different from each of transposition pitches in border zones at both end portions of
the winding slot, transposing angles in one border zone and the middle zone of the winding slot are both set at 180 degrees,
and a transposing angle of the other border zone of the winding slot in the element wire conductor is set to be different
from 180 degrees.
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