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This document analyzes the high vibration occurring on the bearing 1 of the steam turbine at the Muara Tawar CCPP Block 1 power plant. Vibration data was collected from monitoring systems during start-ups and at constant speeds. Analysis found the amplitude of vibration at the rotational speed frequency increased and the phase angle changed at constant speeds. Vibration levels were also higher during coast down than run-up. A shift in critical speed indicated a change in rotor stiffness. It was concluded th

Author

RIDDHI SINGH

Language

EN