Tender №C02804 for the Overhaul of the High-voltage Synchronous Electric Motor and Auxiliary Equipment

–       Overhaul of the electric motor and its auxiliary equipment with replacement of stator windings, repair of rotor windings with complete disassembly of poles and replacement of insulating plates, repair of the rotor shaft surface, repair of the heat exchanger, repair of auxiliary equipment, development of design (repair) documentation, and the necessary tests to ensure operational reliability, qualified verification of explosion protection elements.

–       Experience in overhaul of explosion-proof high voltage motors of the capacity over 16 MW.

–       Availability of a repair shop and lifting equipment (overhead cranes) to ensure disassembly and assembly of equipment taking into account the weight and dimensions of the motor:

·        Electric motor dimensions assembled (L x W x H): 5950×5150×5160 mm.

·        Weight of the motor assembly: 76,000 kg.

–       Availability of vacuum-pressure impregnation (VPI) chamber with core dimensions not less than 2400×2000×2000 mm for replacement of stator windings of electric motors.

–       Availability of equipment that allows repair of rotor windings with removal of poles of the salient pole rotor of a synchronous motor with a power capacity of 21 MW.

–       Availability of electrical laboratory registered with Rostekhnadzor for testing and measurements.

–       Availability of a non-destructive testing laboratory registered with Rostekhnadzor to perform permitted types of tests and measurements.

–       Availability of the test bench to perform tests of synchronous double-winding motor with power capacity up to 21 MW with variable frequency drive, at idle and under load.