| 摘要 |
PURPOSE:To reduce the external dimensions and the rationalize the installation of bushings and gas cooling apparatuses, by a method wherein high tension and low tension bushings, which can be connected to gas insulation bus bar, are arranged between gas cooling apparatuses placed at both sides of the one side of the tank. CONSTITUTION:On the side of center section of a tank 11, in which a coil and an iron core are contained with insulation gas, a high tension bushing pocket 13 is provided, and high tension bushing 14, consisting of gas insulation bushing enclosed in bus bar case 15 together with insulation gas, is installed on both sides of the above high tension bushing pocket 13. Also, high tension bushing pocket 13 is placed at the center, and gas cooling apparatus 20 is provided giving the interval C between them, and low tension bushing 18 is installed at low tension bushing pocket 17 located at the bottom of center section. Hereby, the bulky exterior space of the tank is reduced, thereby enabling to obtain an apparatus of fully equipped portable type. |
