„Oczyszczenie i konserwacja uzwojenia wraz z wymianą łożysk generatora oraz wymiana wszystkich łożysk i uszczelnień przewodów hydraulicznych w przekładni hydrozespołu EW Kozielno”

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Cleaning and maintenance of the windings, including replacement of the generator bearings, and replacement of all bearings and seals of the hydraulic lines in the gearbox of the EW Kozielno hydro unit 4.1 The purpose of this task is to clean and maintain the windings, including replacing the generator bearings, and replacing all bearings and seals of the hydraulic lines in the gearbox of the EW Kozielno hydro unit.4.1.1 Scope of work for this task:Generator: • Replacement of the generator bearing,• Replacement of the bearing temperature sensors,• Measurements of the bearing seats,• Washing and cleaning of the generator stator and rotor,• Carrying out insulation resistance measurements before and after maintenance, • Vibration measurements on the hydro unit casing after the overhaul (document with appropriate measurement protocols),• Dismantling the generator and performing a detailed verification of subassemblies together with photographic documentation,• Start-up of the generator after the overhaul together with verification of the obtainable gross power and the tightness of the lubrication system for the generator bearings; document with a separate protocol,• Perform the…

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