Topic:"Generation Grid Resources" in M12455

CONFIDENTIAL (Attachment Only) Major System Component Primary Function Main Limiting Factors Operating Ring Rotates to open or close all wicket gates simultaneously Wear at pins/bushings, bearing surfaces, corrosion, uneven mechanical load...

AI summary The document provides a technical overview of major components of a hydroelectric system, detailing their functions and limiting factors. It also references a specific proceeding (M12455) related to the Upper Lake Falls 2 Overhaul by NSPI in response to NSEB information requests.

Checklist: PM-ELEC01 Author: Building# - Eqp#: 01W1-02-02 - TURBINE CONDITION: Rotor: IR/PI testing CONDITION: Rotor: Rotor Hub, radial arms and rim CONDITION: Rotor: Field Poles, keys, collars and pole faces CONDITION: Rotor: Field windin...

AI summary This document is a checklist for electrical start-up tasks related to a turbine at building 01W1-02-02, focusing on trip protection tests and condition checks of various rotor components.

ULF HYDRO WEEKLY OPERATIONS ROUTE Plant Description ML Type Allowable Values Unit of Measure Asset Description ULF COUNT EEL/FISH FOUND WHILE CLEANING STRAINERS #2 GEN BRG Numeric GENERATOR ULF Clean Turbine Bearing Strainer #2 Character N...

AI summary The document outlines weekly operational checks and maintenance procedures for the ULF Hydro plant, including monitoring of equipment status, maintenance schedules, and environmental factors like ice loading and lake elevation.

Dry Components Kaplan Blade Servomotor Turbine Shaft Mechanical Seals Stuffing Box Turbine Shaft Coupling

AI summary The text lists mechanical components related to turbines, including the Kaplan Blade Servomotor, Turbine Shaft, Mechanical Seals, Stuffing Box, and Coupling. These are technical parts of a turbine system.

Critical Non-Critical Gate Operating Mechanism Servomotors Shift/Operating Ring Linkages Shear Pins Bushings Locking Mechanism Kaplan Oil Head Turbine Guide Bearing Guide Bearing Journal

AI summary The text describes components of a gate operating mechanism and turbine parts, including servomotors, shift/operating rings, linkages, shear pins, bushings, locking mechanisms, Kaplan oil head, and turbine guide bearing journals.

CI C0057983 NSEB IR-1 Attachment 6 Page 5 of 56 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydropower Asset Condition Assessment

AI summary The document discusses a hydropower asset condition assessment, including an image related to the topic. The content is redacted, and no specific details are provided in the text.

ITM 9: Run– Out Measure run– out and compare to "as– installed" values. Run– out measurements must be analyzed to determine the cause of excessive run– out.

AI summary The text discusses the importance of measuring and analyzing run– out to identify the causes of excessive run– out and compare it to 'as– installed' values.

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.

Hydropower Asset Condition Assessment Leak Evaluation Location: Split Joint / Flange ITM:

AI summary The document discusses a leak evaluation at a specific location (Split Joint / Flange) under the Hydropower Asset Condition Assessment. An image is referenced, but no further details are provided in the text.

Cavitation damage; wire draw; scrape/galling from wicket gates; for those with movable seals—condition and functionality of the seals; gate– end clearance; ability of the brakes to stop rotation. ITM: No ITMs Location: Facing Plates Specif...

AI summary The text discusses various technical aspects of hydroelectric infrastructure, including cavitation damage, wire draw, scrape/galling from wicket gates, seal functionality, gate-end clearance, and brake performance. It includes a table for documenting the condition of components and a placeholder for images and attachments.

CI C0057983 NSEB IR-1 Attachment 6 Page 15 of 56 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hydropower Asset Condition Assessment No ITMs

AI summary This document discusses the assessment of hydropower asset conditions, noting the absence of ITMs (Inspection and Testing Methods). A redacted image is included, likely depicting relevant data or findings from the assessment.

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.

Hydropower Asset Condition Assessment ITM: Surface Condition Location: Throat Ring

AI summary The document presents an image of a hydropower asset condition assessment, focusing on the surface condition of the throat ring at a specific location. The image is labeled with ITM (Inspection and Testing Method) and includes a location reference.

Wicket Gate Operating Mechanism (Operating ring, wicket gate linkages, shear pins and bushings): pin and bushing wear (remove and measure); bushings 'backing out'; visible 'slop' in the mechanism; jerky movement, frequent shear pin breakag...

AI summary The document describes issues with the wicket gate operating mechanism, including pin and bushing wear, bushing backing out, visible slop, jerky movement, and frequent shear pin breakage.

Operating Mechanism Clearances Gate Link Numer: HP Side TOP BTM MID 1.3780" 1.3718" Straight Pin Dia.: 1.3774" 1.3787" Straight Bore: 1.6197" 1.1213" 1.3726" Eccentric Pin Dia.: 1.1176" 1.6266" 1.1257" 1.3750" Eccentric Bore: Gate Link Num...

AI summary The text provides technical specifications for gate link dimensions and references a clearance process related to a hydropower facility overhaul. It includes measurements for pins, bores, and a reference to a regulatory proceeding involving Nova Scotia Power.

NON-CONFIDENTIAL Upper Lake Falls Unit #2 Hydro Turbine History Component/Task 1999 Complete Overhaul 2018 Partial Overhaul above head cover Proposed 2025 Overhaul Operating Ring  X  Draft Tube Liner  X  Brakes    Governor Shaft  X...

AI summary The document presents a comparison of maintenance activities for the Upper Lake Falls Unit #2 Hydro Turbine across three overhaul periods: 1999, 2018, and a proposed 2025 overhaul. It lists components that were addressed during each overhaul, indicating which components were repaired or replaced.

Request IR-4: - In the "Why do this project" of NS Power's application, NS Power notes that "The overhaul of Unit 2 ensures continued generation capacity and supports water management operations on the Mersey River, which are critical for...

AI summary NS Power's application for the overhaul of Unit 2 highlights benefits to downstream safety and system resilience. The request asks for a detailed description of these specific benefits.