N-1CI Work Order
6 passages
DESCRIPTION: This project is for component inspection, refurbishment, or replacement of the Tufts Cove Unit 2 steam turbine High Pressure (HP) and Intermediate Pressure (IP) Turbine components (such as rotor, casings, steam path, seals, be...
AI summary The project involves inspecting, refurbishing, or replacing components of the Tufts Cove Unit 2 steam turbine's high-pressure (HP) and intermediate-pressure (IP) sections to address erosion and creep damage caused by high-temperature and high-pressure operations, ensuring safe and reliable turbine functionality.
Retirement Information: - Categorization of Retirement: Accounting Policy 6420 Retirement and Disposal of Capital Assets - Percentage of Asset Pool:1.0%
AI summary The document references Accounting Policy 6420 for categorizing retirement and disposal of capital assets, with 1.0% of the asset pool allocated to this process. No further details on implications or stakeholder positions are provided.
JUSTIFICATION: Justification Criteria: Thermal Sub Criteria: Equipment Refurbishment/Replacement
AI summary The document outlines the Justification Criteria under Thermal, focusing on Equipment Refurbishment/Replacement as a sub-criteria for evaluation.
Why do this project? The TUC2 steam turbine is forecast to accumulate over 280,000 operating hours and over 2,780 start/stop cycles at the time of the next TUC2 planned 2024 major outage when this project will be completed. Unit utilizatio...
AI summary The TUC2 steam turbine requires refurbishment due to projected 280,000 operating hours and 2,780 start/stop cycles by 2024. Refurbishment is necessary to ensure safe, reliable operation, manage asset risk, and prevent unplanned outages through targeted maintenance planning.
Why do this project now? The TUC2 steam turbine is forecast to accumulate over 280,000 operating hours and over 2,780 start/stop cycles at the time of the next TUC2 planned 2024 major outage when this project will be completed. The last ma...
AI summary The TUC2 steam turbine is nearing its 2024 overhaul due to accumulated operating hours and cycles since its 2012 inspection. NS Power emphasizes planned maintenance to mitigate risks of unplanned failure, with a risk profile highlighting the need for refurbishment or replacement of HP/IP turbine components.
Why do this project this way? Inspection and refurbishment of the HP/IP turbine components within appropriate time intervals and OEM recommendations versus complete replacement of the turbine is the most cost-effective approach. This appro...
AI summary Refurbishing HP/IP turbine components during the 2024 outage is deemed more cost-effective than full replacement, ensuring safe operation and aligning with NS Power's asset management strategy. This approach balances reliability with efficient resource allocation.