| 摘要 |
PURPOSE:To simplify the coupling of a high voltage lead wire and a winding without lowering their insulating efficiency by a method wherein the high voltage lead wire is led out vertically from the aperture part of an electrostatic ring, and the bottom part of the electrostatic shield is positioned almost in the same height as the winding positioned at the top part. CONSTITUTION:An aperture 10, to be turned to the flow path of insulating oil, is provided almost in the center of an electrostatic shield, and the electric shield is divided into two parts of 15a and 15b. Besides, the bottom part of the electrostatic shield 15 which comes in contact with an outside insulating tube 2 is brought to the same height as the lower part of the uppermost winding 3a. Also, the uppermost winding 3a has approximately one half of number of turns when compared with the unit of other windings, and its outside circumferential part is positioned almost in the same circumference as the aperture 10 of the electrostatic shield. As a result, the insulated high voltage lead wire 14 can be led out vertically through the aperture 10 of the electrostatic shield, and the leading-in of the high voltage led wire having unreasonable bending angle between the electrostatic shield 15b and the uppermost winding 3 is unnecessitated. |
