Country: Armenia
Year of ending: 2018
Work description:
Total reconstruction of Hydraulic Unit No. 1 at Tatev HPP which is a part of the Vorotan Cascade. The third most powerful HPP in Armenia. The reconstruction was focused on partial replacement of the primary equipment components, as well as repair and restoration of existing components of the hydraulic unit. So, the new stator of the GA-1 generator was completely assembled and installed while the rotor was repaired and equipped with new pole windings. Nozzles were replaced on the Pelton-type turbine. The service water system was totally replaced, including pumping and filtration units and installations, oil and air cooling radiators. Piping of the regulating system, pneumatic facilities 8 kg/cm2 was replaced.