Another 620–megawatt generator in power plant “Nikola Tesla B“ from 14 May is outside of the power system, the realization of capital overhaul is underway.
In the next four months overhaul on B2 will be done through a very complex and extensive procedures. Among the most important activities is primarily the reconstruction of electrostatic precipitators ESP. That work is largely financed by donations from the European Union. The contract for part of the work financed by donations is entrusted to the Polish “Rafako“, with local companies sub-contractors “Gosa–assembly“ and “IZOPROGRES. The obligation of TENT is the creation of sedimentary electrode, supply transformers, removal of equipment and works on the key contributions of electrostatic precipitators. After reconstruction of the ESP on Unit 2, particulate emissions will be reduced to below 50mg/Nm3 in flue gas, which is in accordance with national and European norms.
In addition to standard operations, other capital repairs and reconstruction are planed: the grid for afterburning, slag system, replacement of superheater, inter heaters 1 and 3 as well as extensive alterations to the pneumatic transport of ash and slag in order to restore the equipment to the projected level and with minor modifications. Significant replacement on parts of the boiler pipe system will be implemented by “Feromont“ and “Termoelektro, a supplier of tubular elements is company Via–Ocel.
Four-months will be used also for more extensive procedures on turbine unit.Planed works are at the opening of both low-pressure turbine (without removing the blades) and replacement of stator and rotor turbine blades , open the generator (with the removal of the rotor) for an overview of winding stator, and more.
The major overhaul will include complete replacement of the tube condenser. That job was assigned exclusively to domestic companies.Copper foundry Sevojno is a supplier of brass tubing, and JP PK “Kosovo“ Obilic as contractor.Â
Source serbia-energy.com
