| 摘要 |
PURPOSE:To ease concentration of stress at the surface near the high voltage shield, improve insulating intensity of surface and minimize enlargement of size of winding by winding around the one end of high voltage winding in the side of high voltage line with a thicker insulating sheet than other portion. CONSTITUTION:A thicker insulating sheet than that to be used for the other winding portion 5a is used only for a part in the side of high voltage line 5b in the foil wound winding in the high voltage winding 5, for example, for only the portion where the winding built width is (l). Thereby, the surface voltage distribution at the edge of high voltage winding 5 is not distributed not only in the conductor edge C'-E'-C' but also ege A'-B' of insulator 10. A good distribution can be obtained. it is enough to make thick a part of high voltage winding 5 as the part (l) where insulation sheet is thick, namely only the edge of high voltage line is made thick. |
