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0321A: Optimum Timing for Generator Stator Rewinds Based on Generator Condition Assessment and Statistical Methods

Replacement of the generator stator windings is one component in the strategy to extend the life ofhydraulic generating plants. Replacement is required when the winding condition deteriorates to astage at which reliable service of the generator can no longer be assured with normal maintenanceactivities and the production losses exceed the unit performance targets.Failures of stator windings are generally infrequent, but their economic impact due torepairs/replacements and outage costs can be sev

Nov 8, 2008

Research

3280: CPF: Transmission Line Reliability and Component Performance Measures and their Application

In this project, a set of approaches had been proposed with respect to the recording and utilization of reliability measures to assess transmission lines performance. The methodologies targeted 3 levels in transmission grids – namely, the system, line and component levels.At each level, the available reliability performance indices were reviewed and their definitions expressed in mathematical format. The inputs to these indices were discussed and their application scenarios specified. Amon

Feb 28, 2018 - Jul 2, 2019

OTE

Research

3389: Application Guide for Wind Speed-Up Factors

Changes in the local topography affect the local wind speed which, in turn, influences wind loading on structures. The significance of the local topography on wind loads has been investigated by several researchers since the 1970s. Following these studies, several national wind loading standards and codes of practice such as NBCC 2005; ASCE/SEI 7-10, AS/NZS 1170.2:2002; EN 1991-1-4:2005 provide simplified guidance in the form of speed-up factors for generic topographic shapes, including isolated

Jun 1, 2012 - Dec 19, 2014

OTD

Research

3081: Risk Level Assessment for Operating, Maintenance and Capital Funding Expenditures

This report helps answer the following key questions related to risk:– What is risk?– How do we identify risks?– How do we measure risks?– How do we rank and assess risks?– How do we manage risks?In answering these questions, we provide usable definitions of hazard, consequence and risk, based on the available standards and literature. The need to rank risks leads to calculations based on hazards, which can provide ambiguous results. Methods to combine the consequen

Jul 9, 2012 - Sep 24, 2014

Research

0259: Characterization of Seismic Hazard and Ground Motions for Analysis of Concrete Dams

With dams presenting potential risk to the people within the downstream floodplain, assurance of the safety of these dams is of paramount importance to owners, regulators and the public. The assurance of safety for seismic events requires credible understanding of seismic sources, potential ground motions, analysis of the dam’s performance, assessment of the potential risk to the public, and determinations of whether:1) The dam meets an acceptable level of safety;2) Modifications to the dam are

Mar 14, 2024

Research

0431B: CPF: Hydropower Training Project - Phase II

This project is a continuation of HOPIG project #0431 Hydropower Training.This second phase included preparation of two additional PowerPoint training modules that can be used by HOPIG members to train employees and others. They are designed to: (1) be easily adaptable to enable training people with different levels of expertise; (2) be customized for use in different organizations; and (3) be easily adaptable for different training timelines. The two modules and their content are des

Jul 29, 2019 - Jan 31, 2020

HOP

Research

0340: Bushings and Seals - Best Practices

This report seeks to outline and identify available bushings and seals within the hydropower market.Following reception and analysis of surveyed information from various sources, this comprehensiveguide was prepared, outlining the industry’s best practices.Summaries of leading-edge industryresearch and development work were also compiled and identification of new materials andtechnologies included in this report.Operational characteristics, material specifications, wear expectations, lubri

Apr 30, 2007

Research

3051: Transformer Repair Facilities and Capabilities

This study was undertaken to identify all transformer repair facilities in North America for oil-filled station class (power) transformers 5 MVA and larger, to document their capabilities, to document any experiences that utilities have had with each facility (and are willing to share), and to create an electronic database of this information. Initially 25 repair facilities were identified as meeting the minimum requirements for inclusion in this project. These facilities were subsequently conta

Sep 1, 2009

Research

CEATI and TTP partnership: TTP (Technical Training Professionals) Trainings

CEATI has partnered with leading training provider TTP (Technical Training Professionals) to offer our members 55 hours of on-demand, online training courses on critical thermal generation topics. These courses are on foundational to advanced topics that will help in onboarding new engineers while exploring key emerging topics.Each member organization can enroll up to 5 individuals for these coursesTo register please CLICK HERE!To know more about TTP CLICK HERE!

Jan 1, 2024 - May 9, 2024

TGIG

Research

33139: Design Implications for Lattice Towers and Pole Structures regarding Foundation Serviceability Limits

The objective of this project is to prepare a state of the art report on the assessment of serviceability limit criteria for various foundation types and compile this information in the form of best practices. The variability of tolerable displacements/rotations of foundations and its impact on design of structures (towers, poles) should be considered and studied. A guideline should be provided for each foundation type what is acceptable serviceability limits (displacements, rotations, different

Jan 18, 2022

OTD

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