| 摘要 |
PURPOSE:To minimize a number of steps in manufacture and improve distribution of winding potential while an impulse voltage is applied by providing an electrostatic shield body only to the area opposing to the line end of winding. CONSTITUTION:A basic insulation cylinder 30 is provided in the vicinity of inside of a winding 10. This winding 10 is connected to the line end terminal U almost at the center thereof while to the neutral terminal O at upper and lower ends. An electrostatic shielding body 31 is provided at the external circumference of insulation cylinder 30 opposing to the distance of the area 2xa near the terminal U of the winding 10. The electrode sheet near the line end of winding 10 of such shield body 31 is connected to the terminal U, while the electrode sheet near the neutral point to the terminal O. A number of steps in manufacture can be minimized by providing the electrostatic shield body only to the area opposing to the line end of winding and moreover distribution of winding potential during application of impulse voltage can be improved. |
