| 摘要 |
PROBLEM TO BE SOLVED: To provide a wound core which can be manufactured without requiring dimensional control in the manufacturing process, and without causing any increase in the manufacturing man-hours, while suppressing increase in iron loss.SOLUTION: A wound core 10 is formed by winding a plurality of core materials 10a having at least one cut in each turn, and has a rectangular window 11 in the center. The space factor of the core material 10a in a corner 12 is lower than that of the core material 10a in a side 13 excepting the corner 12. |
