Surgutskaya GRES-2 Branch of Unipro PJSC is repairing equipment. Three maintenance repairs have already been completed in 2019: power generating units Nos. 1 and 3 of SPU-810 MW, as well as power generating unit No. 7 of CCGT-400 MW.
Currently, for the purposes of maintenance repairs, power generating units Nos. 4 and 5 of SPU-810 MW are stopped. In September 2019, power generating unit No. 8 of CCGT-400 MW will be repaired too. The generator actuator rotor will be replaced in power generating unit No. 4 of SPU-810 MW within the framework of the electric reequipment program of Surgutskaya GRES-2 this year.
Besides, the following routine maintenance work is performed within the framework of maintenance repairs of the Unipro PJSC Branch: replacement of lubricants, metal control, elimination of defects in the equipment of power generating units, if necessary. Power generating unit No. 6 of SPU-810 MW will be stopped this year for overhaul. The work will take about 100 days: from 4 June to 11 September.
The required preparatory work in the Unipro PJSC Branch has already been performed. A large scope of work will have to be done to replace equipment components in power generating unit No. 6, including terminal headers on the boiler, circulation water piping bellows, turbine unit HP valves box, steam relief systems, etc. Upon completion, the repair programme will improve the reliability and provide accident-free operation of the power plant equipment.