Topic:"Asset Management" in M12508

NOTES: BASED ON THE FINDINS OF THE SITE VISIT NTS WOULD RECOMMEND THE REMOVAL OF THE FOLLOWING MINIMUM NUMBER OF POLES FROM THE ROTOR FOR EVALUATION AND REPAIRS: AC DROP TEST: 39 DC DROP TEST MUST BE REMOVED: 3, 7, 14, 25, 26, 29, 33, 35,...

AI summary The document outlines recommendations for the removal and inspection of specific poles on a rotor based on findings from a site visit. Poles identified through AC and DC drop tests, as well as visual conditions, are highlighted for evaluation and repairs.

NSPI Responses to NSEB Information Requests 1 (iii) If the date of the last replacement is earlier than the estimated lifespan, please 2 list the possible reasons. 3 4 Response IR-1: 5 6 (a) The cost of refurbishing the two poles in 2023 w...

AI summary NSPI responded to NSEB information requests regarding the refurbishment of rotor poles at the Big Falls Unit 6 hydro facility. The response includes details on the cost of refurbishment, estimated lifespan of insulation, and the timeline for the most recent refurbishment project.

1 Request IR-2: 2 3 (a) What is the estimated remaining life of the generator? 4 5 (b) Please provide the power produced by each unit for the past five years. 6 7 Response IR-2: 8 9 (a) The estimated remaining life of the generator based o...

AI summary The response to Request IR-2 provides the estimated remaining life of a generator as 2032, with potential for extension through additional investment. It also directs the reader to a table for historical power production data from the Big Falls units over the past five years.

CI C0080112 – HYD Big Falls Unit 6 Rotor Re-Insulation (U&U) - $1,025,626 (NSEB M12508) NSPI Responses to NSEB Information Requests 1 Request IR-4: 2 3 The application notes that comprehensive electrical testing, including AC/DC drop tests...

AI summary The document discusses NSPI's response to NSEB's information request regarding the degradation of insulation and conductor leads in the HYD Big Falls Unit 6 rotor, as well as hot spots on slip rings and brush boxes. NSPI attributes the degradation to factors like age, thermal stress, environmental conditions, and mechanical stress.

1 Unit 6. Based on the unit's rated capability and typical conversion efficiencies, the 2 maximum potential impact during sustained full river flow is estimated at approximately 3 $10,000 / day of lost generation at Big Falls, subject to a...

AI summary The document discusses the potential economic impact of Unit 6 at Big Falls due to operational issues, estimating a maximum daily loss of approximately $10,000 during sustained full river flow. NS Power provided details on the refurbishment of rotor poles, explaining that only two required refurbishment in 2023 due to damage discovered during a turbine bearing project, while the remaining poles were addressed later in 2025.

Request IR-11: - In response to IR-3(a) and IR-4(c), NS Power stated that this generator has been offline for - various operational issues and projects over the last several years and risk to the overall health - of the generator is manage...

AI summary NS Power responded to IR-3(a) and IR-4(c) by explaining that the generator has been offline due to operational issues and projects, and that its health is managed through asset management principles. The request asks for asset management assessments and inspection data from 2023 and inquires why refurbishment was not performed earlier on rotor poles.

19 MWh in 2024, and 5,618 MWh in 2025 up to August. The energy produced by Big Falls Unit 6 was 6.39% in 2023, 2.56% in 2024, and 26.32% compared to Big Falls Unit 5, which is the same size as Unit 6. 1. Please explain why Unit 6’s generat...

AI summary The document discusses the low energy production of Big Falls Unit 6 compared to Unit 5, asking why Unit 6's generation has been so low and if the project will return it to its operating capacity. NS Power responded that the generator has been offline for operational issues and that asset management principles are used to manage its health.