N-2NSPI (NSEB) RIR 1 to 9 - Redacted
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2 Please refer to the following attachments for system drawings highlighting major 3 components: 4 • Attachment 1: General Arrangement Sectional Elevation 5 • Attachment 2: Cross Section of Generating Station and Intake 6 7 NS Power levera...
AI summary NS Power uses the HydroAMP program for hydro turbine maintenance and assessments. The document references attachments with system drawings and mentions an overhaul matter (M12455) related to Upper Lake Falls 2.
CONFIDENTIAL (Attachment Only) 1 periodically, with frequency based on operational issues, age, and results of preventive 2 maintenance activities. When possible, condition assessments should be performed 1–2 3 years prior to a planned uni...
AI summary The text outlines maintenance and assessment procedures for hydro units, including condition assessments performed periodically based on operational factors and the Hydro Mechanical Asset Strategy Committee's schedule. It also notes typical service lives of components and the frequency of inspections at Upper Lake Falls.
CI C0057983 NSEB IR-1 Attachment 6 Page 6 of 56 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydropower Asset Condition Assessment
AI summary The document discusses the condition assessment of hydropower assets, as indicated by the title and the image reference. It appears to be part of a regulatory proceeding involving Nova Scotia energy infrastructure.
CI C0057983 NSEB IR-1 Attachment 6 Page 7 of 56 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydropower Asset Condition Assessment
AI summary The document includes a hydropower asset condition assessment, which is part of a larger regulatory proceeding. A redacted image is included, suggesting technical or confidential details about the hydropower assets.
CI C0057983 NSEB IR-1 Attachment 6 Page 16 of 56 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydropower Asset Condition Assessment ITM: Crack Evaluation Location: Headcover Studs
AI summary The document discusses the assessment of hydropower asset condition, specifically crack evaluation at the headcover studs location, referencing inspection and testing methods.
Headcover studs/nuts: tightness; corrosion; cracks (by axial UT); cracks (ring with hammer) Specification: ITM Complete: Yes No Comments: [Insert picture here, additional picture can be attached in "Attachments"] Amendement: Visual inspect...
AI summary The document discusses the inspection and evaluation of headcover studs and nuts, focusing on tightness, corrosion, and crack detection using axial ultrasonic testing and hammer ringing. It provides a table for evaluating bolt, stud, and nut integrity and outlines possible adjustments based on crack percentages.
Hydropower Asset Condition Assessment
AI summary The document discusses the assessment of hydropower asset conditions, focusing on evaluating the state of infrastructure to ensure reliability and efficiency in power generation.
CI C0057983 NSEB IR-1 Attachment 6 Page 23 of 56 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydropower Asset Condition Assessment
AI summary The document discusses the condition assessment of hydropower assets, including visual inspections and evaluations of infrastructure components. Images are included to illustrate the assessment process.
Turbine - Components Condition Assessment Summary: Throat Ring Date: System: : Location Plant : : Assessor Unit : Throat Ring Sub-Components N/A CI C0057983 NSEB IR-1 Attachment 6 Page 24 of 56 REDACTED (CONFIDENTIAL INFORMATION REMOVED)
AI summary The document provides a summary of the condition assessment of the turbine throat ring component, including a condition index (CI) and inspection and testing methods (ITMS). The information is part of a larger attachment to a regulatory proceeding and contains redacted confidential details.
Turbine - Components Condition Assessment Summary: Wicket Gates Date: System: : Location Plant: : Assessor Unit: Wicket Gates Sub-Components Stem-Seal Journals CI C0057983 NSEB IR-1 Attachment 6 Page 28 of 56
AI summary The document provides a summary of the condition assessment of turbine components, specifically focusing on wicket gates and their sub-components such as stem-seal journals. It includes a table with placeholders for details like date, location, assessor, and unit, and references an attachment from the Nova Scotia Energy Board.
Hydropower Asset Condition Assessment ITM: Crack Evaluation Location: Leaf Body
AI summary The document discusses the assessment of a hydropower asset's condition, specifically focusing on crack evaluation in the leaf body. It includes images and references inspection and testing methods.
Hydropower Asset Condition Assessment ITM: Surface Condition Location: Wicket Gate
AI summary The document discusses the assessment of hydropower asset conditions, specifically focusing on the surface condition of a wicket gate at a particular location. It includes images and references to inspection and testing methods.
Hydropower Asset Condition Assessment ITM: Leak Evaluation Location: Vetical Seal
AI summary The document discusses the assessment of hydropower asset conditions, specifically focusing on a leak evaluation at the vertical seal location, using the Inspection and Testing Method (ITM).
Hydropower Asset Condition Assessment ITM: Twisted, Bent or Distorted Shapes Location: Gate Stem Specification:
AI summary The document discusses the condition assessment of a hydropower asset, specifically focusing on the inspection and testing methods (ITM) related to twisted, bent, or distorted shapes located at the gate stem.
Hydropower Asset Condition Assessment ITM: Twisted, Bent or Distorted Shapes Location: Leaf Body
AI summary The document discusses the condition assessment of a hydropower asset, specifically highlighting an issue with twisted, bent, or distorted shapes located in the leaf body, as identified through the Inspection and Testing Method (ITM).
Upper and Lower Stay Rings Crack Evaluation at Stay Ring Decks
AI summary The document discusses the evaluation of cracks at stay ring decks, focusing on the structural integrity of upper and lower stay rings. This is relevant to infrastructure planning and asset management.
CI C0057983 NSEB IR-1 Attachment 6 Page 38 of 56 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydropower Asset Condition Assessment ITM: Surface Condition
AI summary This section discusses the assessment of hydropower asset conditions, focusing on surface condition as part of the inspection and testing methods conducted by the Nova Scotia Energy Board.
Turbine - Components Condition Assessment Summary: Scroll Case Date: System: : Location Plant: : Assessor Unit: Scroll Case Sub-Components Curb Ring Runner Seal Water Scroll Case Drain Access Cover/Door Equalizing Valve CI C0057983 NSEB IR...
AI summary The document provides a summary of the condition assessment of turbine components, specifically focusing on the Scroll Case sub-components, including the Curb Ring, Runner Seal Water, Scroll Case Drain, Access Cover/Door, and Equalizing Valve. The information is part of a confidential attachment to a regulatory proceeding.
Hydropower Asset Condition Assessment ITM: Crack Evaluation Location: Scroll Case
AI summary The document discusses the assessment of hydropower asset conditions, specifically focusing on crack evaluation in the scroll case, using Inspection and Testing Methods (ITMS).
Specification: ITM Complete: Yes No Comments: [Insert picture here, additional picture can be attached in "Attachments"] Amendment: Visual assessment of the scroll case is adequate for condition assessment scope. Scroll Case Possible ITM R...
AI summary The document outlines a specification for visual assessment of a scroll case, detailing possible ITM results and corresponding adjustments to the Condition Index (CI). It includes a table showing how different crack conditions affect the CI, with adjustments ranging from –0.5 to –6.
Hydropower Asset Condition Assessment ITM: Concrete Condition Location: Scroll Case and Intake
AI summary The text discusses the assessment of hydropower asset conditions, specifically focusing on concrete condition at the Scroll Case and Intake location. It references inspection and testing methods used for evaluation.
CI C0057983 NSEB IR-1 Attachment 6 Page 47 of 56 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydropower Asset Condition Assessment
AI summary The document discusses the condition assessment of hydropower assets, including images related to the assessment process. Due to redaction, specific details and findings are not disclosed.
Turbine - Components Condition Assessment Summary: Draft Tube Date: System: : Location Plant: : Assessor Unit: Draft Tube Sub-Components Liner Drains Uplift Drains Draft Tube Door CI C0057983 NSEB IR-1 Attachment 6 Page 48 of 56 REDACTED (...
AI summary The document presents a condition assessment summary for the draft tube turbine components, including liner, drains, uplift drains, and the draft tube door. It is part of a confidential attachment to a regulatory proceeding.
Galling or spalling of concrete; exposed re– bar. ITM Complete: Yes No Comments: Difficult to access, if any visual is possible record observations. -CML 05/05/2024 [Insert picture here, additional picture can be attached in "Attachments"]...
AI summary The document discusses the visual assessment of concrete conditions, specifically galling or spalling and exposed re–bar, with comments on difficulty of access and the absence of cracks. A draft tube visual assessment is mentioned, with access often unavailable.
CI C0057983 NSEB IR-1 Attachment 6 Page 50 of 56 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydropower Asset Condition Assessment
AI summary The document discusses the assessment of hydropower asset conditions, focusing on evaluating the state of infrastructure to ensure reliability and performance.
Turbine - Components Condition Assessment Summary: Kaplan Blade Servomotor Date: System: : Location Plant: : Assessor Unit: Kaplan Blade Sevomotor Sub-Components CI C0057983 NSEB IR-1 Attachment 6 Page 53 of 56 REDACTED (CONFIDENTIAL INFOR...
AI summary This document provides a summary of the condition assessment of the Kaplan Blade Servomotor sub-components as part of a turbine evaluation. It includes a condition index (CI) and inspection and testing methods (ITMS), but specific details have been redacted due to confidentiality.
NON-CONFIDENTIAL 1 Request IR-2: 2 3 In the "DESCRIPTION" of NS Power's application, NS Power notes that "Upper Lake Falls 4 Unit 2 was last overhauled in 1999 and is approaching 100 years of service life." 5 6 (a) Please provide the detai...
AI summary The document requests detailed information about the 1999 and current overhaul scopes for Upper Lake Falls Unit 2, including component service life expectations. NS Power is asked to compare these scopes with a 2018 partial overhaul as part of its response.
CI C0059783 – HYD Upper Lake Falls 2 Overhaul (M12455) NSPI Responses to NSEB Information Requests 1 Request IR-3: 13 Power's Hydro Operations, Engineering, Maintenance and Enterprise Asset Management. 14 In coordination with other work be...
AI summary NSP is responding to NSEB information requests regarding the HYD Upper Lake Falls 2 Overhaul project. The project scope was coordinated with other work under CI C0042526, and the 2023 condition assessment informed the scope of work. Condition assessments are generally conducted every 10 years at NS Power, though frequency may vary based on factors like unit age, previous assessments, and planned outages.
CI C0059783 NSEB IR-5 Attachment 1 Page 12 of 17 REDACTED (CONFIDENTIAL INFORMATION REMOVED) HYDRO UNIT CONDITION ASSESSMENT Age (3) 12-1
AI summary The document contains a table with information on the age and unit condition assessment for hydro assets, indicating that three units are aged between 12-1 years.