| 摘要 |
PURPOSE:To improve cooling by forming a leading cable connected always with an external wiring side cable of a fine cable having a current capacity smaller than the other leading cable, thereby reducing a ventilating resistance. CONSTITUTION:Terminals 1a, 5a, 9a connected always with external wiring cables of power sources R, S, T phases and leading cables 1b, 4b, 5b, 8b, 9b, 12b to terminals 4a, 8a, 12a always shortcircuited with the terminals 1a, 5a, 9a are formed of fine cable having a current capacity smaller than the other leading cables 2b, 3b, 6b, 7b, 10b, 11b in a terminal box out of a stator frame 15. Thus, the connection units 13 of the cables 1b-12b of a stator winding 16 decrease, the space distances between the units 13, a windowshield plate 14 and the frame 15 increase to decrease the ventilating resistance. |
