| 摘要 |
PURPOSE:To contrive to enhance workability of assembling, and to enahle to attain easily increase of capacity and recovery when trouble is generated at a single-phase transformer by a method wherein unit transformers dividedly transported are installed in an array only by the number of units corresponds to the necessary capacity at least on one side of the lead ducts of a high-voltage and a medium-voltage stacked in the vertical two stages, and the respective unit transformers and the respective lead ducts are connected by the wires of the shortest sizes. CONSTITUTION:Unit transformers 1A-4A, 1B-4B are dismembered as to be suitable to the transportation limit, and are transported respectively separately. The unit transformers thereof are arranged symmetrically only by the number of units enabled to obtain the necessary capacity on both the sides interposing a high-voltage lead duct 6 and a medium voltage lead duct 7 put thereon between the unit transformers. High-voltage lead wires U and medium- voltage lead wires V are connected respectively to the high-voltage lead ducts 6 and the medium voltage lead ducts 7 by the shortest sizes. Moreover, the edges on one side of the high- voltage and the medium-voltage lead ducts 6, 7 are connected according to a gas-filled duct 10 for the high-voltage lead wires and a gas-filled duct 11 for the medium-voltage lead wires as gas compression bus-bars to a switchgear through high-voltage wall penetrating bushings 8 and medium-voltage wall penetrating bushings 9. By constructing the single-phase transformer in such a way, the shapes of the unit transformers of the multisegment single-phase transformer are equalized, and moreover, the lead wire connecting parts on the high-voltage side and the medium-voltage side can be made to the shortest lengths to enable to attain easily recovery when trouble is generated. |
