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3418B: Submarine Cable Route Maintenance, Revised

Increasing global energy requirements, combined with the growing integration of renewable energy power sources (both marine and terrestrial), have led to a significant rise in the installation of submarine transmission cables to distribute power within and between countries, spanning seas, estuaries, rivers and lakes. To the asset owner and network operator, reliability and availability of the cable to provide power transmission capacity to the network is paramount. A structured approach to cabl

Jul 31, 2017 - Jan 8, 2018

TUC

Research

5143D: Enhancements to the web-based power quality database

Power quality problems include all of the issues that arise from the incompatibility between a utility’s power and the customer’s energy-consuming equipment that result in impaired operation. These include transients, voltage sags and swells, momentary interruptions, harmonics, and short- and long-term voltage variations and outages. Power conditioning for specific power quality problems requires knowledge of the type of problem that is occurring. Power conditioning equipment can be

Apr 19, 2010

Research

3729: Personal Protective Grounding Reference Guide (2022 Update)

Personal protective grounding practices can vary from one utility to the next. Practices could include terms such as grounding both sides, bracket grounding, equipotential bonding and single point grounding. The use of equipotential bonding is often plagued by inconsistencies and a lack of acceptance and may not be as practiced in Transmission as in Distribution work. Utility standard operating procedures may allow for more than one grounding method, such as: “Grounding between the work ar

Jan 21, 2021 - Sep 30, 2022

Research

3316B/2: Spatial Factors for Extreme Ice and Extreme Wind: Task 2 Calculation of Spatial Factors from Ice and Wind Data

A concern of utilities is the spatial effect - the increase in risk from environmental loads of spatial structural systems (such as transmission lines) compared to point structures (such as a building or microwave tower at a particular location). The environmental loads are measured at relatively few locations (weather stations) while the spatial structural system is exposed to all the storm systems that intersect any portion of the system. In Canada, the CSA standard for overhead lines specifie

Jan 1, 2005

OTD

Research

3289: Planning Guide for UAV Maintenance & Construction Operations

Electric utilities are increasingly using Unmanned Aerial Vehicles (UAVs) to improve safety by reducing the amount of time workers spend in elevated environments and to improve efficiency and reduce costs associated with construction and operations. This report provides a planning guide as a road map for electric utilities interested in establishing a UAV program. The planning guide is organized into three sections. First, tasks tha

Apr 1, 2021 - May 2, 2022

OTE

Research

33140: Best Practices on Geotechnical Site Investigations of Transmission Lines

Electric transmission lines (TLs) are a critical infrastructure used for transporting high-voltage electric power over long distances. Compared to other infrastructure projects, geotechnical site investigation and foundation design for transmission structures are very challenging due to their diversity and complexity associated with wide spatial variabilities of soil conditions along the TL routes, requiring time-consuming and cost-intensive investigative work. Proper guidelines addressing these

Feb 4, 2022 - May 28, 2024

OTD

Research

0308A: CPF: Risk Management: A Snapshot of Industry Practice

The objective of this project is to take a 'snapshot' of current industry risk management practice. Its aim is to assist individual hydroelectric utilities to identify and develop the most appropriate program for their business by learning what the electric utilities and industries with large valuable assets are doing. Utilities may also have the opportunity to follow up on specific risk issues with companies excelling in a particular area of interest. In particular, it investigated how utilitie

Dec 1, 2000

Research

3308: Inspection Techniques for Detecting Latent Damage to Existing Overhead Transmission Lines from Previous Ice and Wind Storms

A checklist template has been developed to facilitate the customized inspection of transmission line components for latent component damage after a severe ice and/or wind storm event has taken place.This report includes sufficient technical and illustrative details to permit a user to customize the checklist template for application on a specific transmission line section for any given storm severity level of the users’ choice. While the report suggests six typical storm severity levels (i

Dec 1, 2004

OTD

Research

0377: CPF: Hydraulic Unit Governor Upgrading Guide

The requirements for controlling the speed of electricity generating units, and hence the frequency of the power systems, have become increasingly more demanding as electricity applications have increased in variety and magnitude. The inertia of the water contained in the penstocks ofhydroelectric units imposes considerable limitation to their rate of output change. Additionally, the mechanical governors can hardly manage the conflicting requirements of frequency control stability and fast deliv

Sep 30, 2010 - Mar 31, 2011

Research

0146: Maintenance Optimization Using Risk-Based Tools

In recent years, power plant operation has changed significantly due to increasing competition in the market, demand for higher profits, and obligation to meet increasingly stringent statutory requirements and environmental regulations. There has been a shift in the operation mode from base to cyclic load, and this has led to increased numbers of plant failures. Such incidents, such as furnace explosions, cracking of a major pressure part, or major turbo-generator failures, can leave a unit with

Mar 18, 2018 - Jan 24, 2019

TGIG

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