| 摘要 |
PURPOSE:To effectively use the floor space of the titled transformer by a method wherein the transformer is arranged in a airtight case provided along the wall member of an underground hole, and the lead out of a high-tension lead wire is constituted in such a manner that said lead out is performed on the floor surface level. CONSTITUTION:A U-shaped airtight case main body C such as a metal case and the like is accompanyingly provided on the inner wall of an underground hole formed in the ground, and a transformer Tr is provided in the airtight case main body C with its top part 2 facing upward. No.3 shows the airtight metal cover which hermetically covers the aperture part of the airtight case main body C, and insulating gas 4 such as SF6 gas and the like is sealed into the space formed by said airtight cover 3 and the airtight case main body C. On the other hand, a bushing 5 is airtightly provided on the side wall of the airtight cover 3 with its top part 6 facing upward to the above- mentioned space, and the top part 6 of the bushing 5 and the top part 2 of the transformer Tr are connected in the space using a high tension lead wire 7 such as an aluminum pipe and the like. Moreover, the lead wire such as a cable and the like to be coupled and connected between the bushing 5 and the moving type bushing 9 is shown by numeral 8 in the diagram. |
