The steam turbine generator is stopped for maintenance due to dynamic unbalance,but the parameter control exceeds the design value seriously when starting up,resulting in friction in the dynamic and static part of the turbine rotor,leading to thermal bending of the rotor.After a series of adjustment measures,the generator was successfully started up.In the next year,the unit was disassembled again to check the rotor static and dynamic friction parts,and the rotor static and dynamic friction problems were solved by increasing the positive clearance of the front gland and reducing the negative clearance.
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