| 摘要 |
PURPOSE:To reduce the size of a cooling passage in the radial direction and a cooling passage in the axial direction by forming inside and outside cooling passage while communicating them with the cooling passage in the radial direction and constituting the cooling passage in the radial direction and the cooling passage in the axial direction so that H/V<=0.3 is formed in the width size H of the cooling passage in the radial direction and the width size V of the cooling passage in the axial direction. CONSTITUTION:Disk winding 3 is stacked through a plurality of radial direction space pieces in the axial direction, the cooling passages 4 in the radial direction are shaped radially, and axial direction space pieces are positioned among both the inner circumferential side of the winding 3 and an inside insulating cylinder 1 and both the outer circumferential side of the winding 3 and an insulating cylinder 2 while communicating them with the cooling passages 4 and the cooling passages 5, 6 in the axial direction are formed. Inside and outside blocking plates 7, 8 are mounted so as to alternately block the cooling passages 5, 6 among the winding 3. When the width of the cooling passages 4 is H and the width of the cooling passages 5, 6 is V, the rate of shunt of the cooling passages 4 results in success on the cooling of the winding 3 when H/V<=0.3 is formed in the region of the number of stages of the winding 3 generally arranged in a cooling zone. |
