DESCRIPTION: This project includes the inspection and refurbishment of the Lingan Unit 1 High Pressure (HP) and Intermediate Pressure (IP) turbine components, including the rotor, casings, steam path elements, seals, bearings, and fastener...
AI summary The project involves inspecting and refurbishing critical components of the Lingan Unit 1 steam turbine (HP/IP rotor, casings, seals, etc.) to ensure safe operation. Degradation mechanisms like erosion, creep, and fatigue from high-temperature steam and operational cycling are addressed through this maintenance effort.
Why do this project? Steam turbine overhauls are scheduled based on accumulated operating hours, thermal cycles, and known equipment conditions, consistent with industry best practices and risk-based asset management principles. Unit utili...
AI summary Steam turbine overhauls at Lingan Unit 1 are necessary due to accumulated operating hours, thermal cycles, and equipment conditions. Proactive refurbishment ensures safe and reliable operation, reduces unplanned outages, and maintains operational readiness.
Why do this project now? The most recent major inspection of these components (HP and IP nozzles, rotor, inner and outer casings, upper and lower bearings, and thermocouples) was conducted in 2010. By 2026, the HP and IP turbine will have...
AI summary The 2010 inspection of turbine components will reach overhaul thresholds by 2026 due to accumulated operating hours and cycles. Planned maintenance is necessary to mitigate risks of unplanned failure, safety concerns, and regulatory non-compliance.