The work is under way at level +7,800 of the first power unit turbine building of the LNPP under construction.
The bus ducts are intended for the generator electrical connection to the unit transformers. The total length of the bus duct is 1387 m, its diameter is 1160 mm. There is a tubular busbar inside, 654 х 17 mm in diameter mounted on the support isolators, which are fastened in the supports inside the aluminum shell.
A separate bus duct line is coming to each of the three outdoor unit transformers located at the site near the turbine building. In this way JSC SEM performs two bus duct installation projects at the same time: the first, from the turbine set to the exit, the second, from the building wall to the unit transformers and to the auxiliary transformers.
At present the bus duct in the turbine building has been completely installed and the works are performed outside, at the unit transformers site. A bus duct branching from the main 24 kV bus duct to auxiliary transformers is being installed.
Note:
The Holding “Titan-2” is the largest in the North-West group of companies, erecting the most important objects of the nuclear industry and energy. The organization performs a full range of construction and installation works from engineering to commissioning.
The Holding “Titan-2” is one of the main contractors for the construction of power units No. 1 and No. 2 of the Leningradskaya NPP-2. Main organizations of the company perform 30% of general construction and 80% of installation works on the site. Specialists of the holding are engaged on the objects of the Leningradskaya NPP-2 first and second power units. The works are being performed in the buildings of the reactor, turbine, electricity, water, heating system and other structures of power units.