Ausbau und Erweiterung der Umspannanlage Prim

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The scope of performance for the contractor includes the planning and execution of the extension of the existing 110 kV installation from the current two to a future total of eight double busbar section bays in outdoor (open-air) configuration. The measure also includes the installation of a 110 kV earthing fault extinguishing coil (E coil), the relocation of a 110/20 kV transformer substation unit, the construction of new oil containment sumps, and the preparation of a temporary arrangement to ensure plant operation during the construction phase. The existing substation has two 110/20 kV transformer substation units with a rated power of 40 MVA each. These are supplied in block mode via two 110 kV overhead lines from the neighboring substation Rottweil of Netze BW. As part of the expansion, the 110 kV switching installation will be expanded to a total of eight double busbar section bays. The design provides for two feeder bays for the 110 kV overhead lines, two transformer bays, three cable outgoing bays, and a cross-connection (tie) bay. One cable outgoing bay serves as a reserve. Initially, only the foundations will be installed there. In addition, a 110 kV earth-fault…

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