Major overhaul and commissioning of the hydro-electric unit No.2 is completed in the Republic of Karelia on Ondskaya power station.
Decommissioning of the unit was scheduled for 3 months, for its overhaul and adjustment, but during of the work, serious defects of the hydro-generator rotor was revealed, which was required a complex repair of coil isolation. After considering various options, the leadership of the Karelian Branch "TGC-1 " was decided to do reconstructin of the generator rotor in the factory, even though greater cost of repair.
The general contractor and the main producer of repair ZAO "Nordenergomontage" in collaboration with electrotechnical concern "Ruselprom" managed to accomplish this task with high quality and in the shortest possible time. Moreover the reconstruction of thrust bearing, repairs of turbine bearing, guide vanes, shafts of turbine and generator, system of technical water were performed.
At the June 12, hydraulic unit was assembled and passed to exploiting personnel of the station.
Conducted repair guarantee in the next some years reliable work of hydro-electric unit, which served over half a century, since putting the station in operation in 1956.
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