| 摘要 |
PURPOSE:To reduce the loss by circumferentially splitting a conductor into two strands, and crossing the both strands at the end coil of an opposite rise side, thereby suppressing a circulating current produced by a magnetic flux leaked into a slot. CONSTITUTION:An armature coil is composed of upper layer conductors 9a, 9a' and lower layer conductors 9b, 9b'. The strands which form the conductors 9a, 9b' are aligned circumferentially, and disposed at the uppermost of a slot. The strands which form the conductors 9b, 9b' are disposed at the lowermost of the slot, and the upper and lower relationship of the slots is inverted in the coil end A. Further, the conductors 9a, 9a' are disposed so that the strand 9a is inside and the strand 9a' is outside, and after crossed laterally at the coil end A, they are led to the conductors 9b, 9b'. Accordingly, the strand 9b of the lower conductor is disposed inside, and the strand 9b' is disposed outside. |
