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3304B: Numerical Simulation for Dynamic Response of Overhead Lines with or without Load Control Devices ?

ADINA software (900-Node version) has been examined and used for performing dynamic analysis of a transmission line subjected to conductor or insulator breakage. A non-linear computer model was developed to simulate the dynamic response of a two-span and single-phase line section, considering the non-linear behaviors of conductor material and action, insulator swing movement, and flexibility of the supporting structure. Both static and dynamic analyses were carried out under the condition of bro

Jun 1, 2004

OTD

Research

3243: Corrosion Assessment of Below Grade Transmission Line Steel

A large percentage of transmission lines in existence today have exceeded or are reaching their 50 year design life. The below ground foundations are subject to corrosion, and as their condition is difficult to assess, they are often neglected because of the lack of inspection techniques. Visual inspection by excavation is the predominant method used by utilities; however, this process is labor intensive, costly and is only practical if the corrosion is limited to a small depth below ground

Apr 16, 2012 - Jan 24, 2014

OTE

Research

5143B-16: Planning a Reliable Variable Speed Drive Installation

Variable Frequency Drives - Brochure published by Manitoba Hydro and the Electrical Association of Manitoba

Jun 16, 2016

Research

0256: Dam Safety Performance Monitoring and Data Management – Best Practices (2024 Update)

Geosyntec Consultants (Geosyntec) was selected to update the CEATI Report No. T082700-0210 "Dam Safety Performance Monitoring and Data Management – Best Practices" to help CEATI’s Dam Safety Interest Group (DSIG). The updates to the original CEATI Report were requested in the scope of work defined by CEATI, complementing the input from selected CEATI members. Hence, updates were restricted to some sections of the Report and focused on the importance of (i) visual monitoring and documentation as

Apr 28, 2020 - Jun 14, 2024

DSIG

Research

3512: Electric Utility Guideline for Inventory and Asset Management of Cyber Security Assets

Utilities typically employ asset management programs and systems to manage the lifecycles of field equipment such as poles, insulators, transformers, turbines and generator components, and the like. Due to increased physical and cyber security threats to these traditional utility assets, and due to regulatory requirements, such as the NERC CIP standards, utilities have been deploying and managing increasing numbers of security assets. Specifically for cyber security, the assets are composed of a

Aug 14, 2020 - Jul 4, 2023

Research

3323: Modelling and Prediction of Failure of Transmission Lines Due to High Intensity Winds

The proposed 3-year program is for Validation and Implementation, encompassing:Testing of tower/line physical models in a novel large-scale downburst simulator (based on a wall jet), with comparison to conventional loads derived from atmospheric boundary layer profile wind tests on those models.Validation of the tornado CFD model using new data from a tornadic chamber.Completion of a simplified downburst loading model and corresponding tornado load model. Development of a downburst risk mod

Sep 1, 2006 - Sep 1, 2012

OTD

Research

3273: CPF: Guidelines for Transmission Line Pole and Tower Steel Capacity based on Corrosion Degradation

Steel transmission structures have been in service for more than 100 years. As they age, these structures are experiencing metal loss both above and below ground level due to corrosion. Significant questions have arisen regarding how much corrosion wastage (section loss) is acceptable before some type of remedial action is required. Assessing the remaining capacity of a structure due to corrosion wastage and the associated loss of member thickness is a complex process due to the different failur

Feb 20, 2017 - Oct 15, 2018

OTE

Research

3030B: Ground Grid Corrosion

The objective of this study was to identify the factors contributing to the corrosion of ground grid systems at electrical substations and the technologies available to minimize those factors.The work included an extensive literature search and utility survey conducted in North America. The report discusses corrosion theories applicable to ground grids, as well as related corrosion examples and the experience of other industries. The report addresses the conditions contributing to ground grid co

Jul 1, 2009

Research

0442: Methods to Improve Inflow Measurements/Calculations and their Utility

This project would be structured in two parts.The first part will provide a detailed description of the Natural inflow calculation process including a description of each of its components, including a list of the various ingredients and inputs to the process, the different configurations and components of a river system that it can accommodate (including components of power plants and spillways), the modeling options, assumptions and possible shortcuts, error calculation, etc. The objective is

May 16, 2024

HOP

Research

3304A: Load Control Devices (LCDs) For Overhead Lines Phase 1

This investigation concerns itself with a review and assessment of the effectiveness of load control devices (LCDs) for reducing the effect of environmental overloads on transmission and distribution power lines.

May 1, 2002

OTD

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