| 摘要 |
PURPOSE:To easily perform the connection works inside a tank as well as to highten the insulating reliability of the title transformer by a method wherein the upper cover of a tank is formed higher than the lower base, and the upper and the lower liquid-colecting tubes are connected penetratingly to the lower base of the tank. CONSTITUTION:The upper tank cover 12 having the opened upper face is formed higher than the base 11 with opened upper face located at the lower part of the tank, and the part 13 where the lower base 11 and the upper cover 12 are conneted is positioned at the lower part of the tank 10. A lower liquid-collecting tube 7 and an upper liquid-collecting tube 8 are inserted into the tank from the penetrated parts 14 and 15 provided on the tank lower base 11. When the transformer is going to be assembled, as the cover 12 can be put on after completion of all the internal assembling works including the connection of the liquid-collecting tubes 7 and 8 and the tank 10, the workability can be improved, and a countermeasure for dust prevention can be provided easily, thereby enabling to prevent the lowering of insulative reliability caused by dust and slso to prevent the lowering of allowable electrostatic capacitance. |
