| 摘要 |
PURPOSE:To change substantial dimensions of a case to transport dimensions by a method wherein a plurality of unit cases constitute the case in which the stationary induction apparatus such as a transformer is housed, the outer periphery of one case is coincided with the inner periphery of the other case which is connected and a welding is applied to the coincided part to make the cases one body. CONSTITUTION:The case in which a transformer iron core 3 wound with a winding 4 is formed of a plurality of unit cases 11 and 12 or a plurality of the unit cases further divided into many numbers of the unit cases. When these unit cases are assembled, a flange plane 11a provided at the top of the one unit case 11 on its outer periphery is kept fit with the unit case 12 adjacent thereto on its inner periphery, and flange plane 11a is applied a welding with those ends remaining overlapped. Thus, the respective unit cases are fitted on the outer periphery and inner periphery and welded to be made the cases with the predetermined height. In such a way, the substantial dimension of the case can be made the transport dimension and with the same transport dimension, the apparatus capacity can be enlarged. |
