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3271: CPF: Condition Assessment of Transmission Line Concrete Foundations

Transmission line foundations are designed to support and stabilize a tower, such that the structure is firmly anchored into the ground and can effectively resist the transferred forces resulting from the applied load cases under consideration. Over time, however, the structural integrity of these foundations can be compromised in a number of ways that could lead to a significant and dangerous weakening of their load bearing capacity. Possible causes include environmental factors like severe wea

Mar 7, 2017 - Aug 4, 2017

OTE

Research

3737: Practices for Shielding and Grounding of Station Control and Power Cables

GL

SE

Research

5099: The Impact of Variable Distributed Renewable Generation on the Distribution Grid, Phase 1 - Photovoltaic

The objective of this study was to identify the various issues (from harmonics and phase imbalanceto smell and noise) renewable generation brings to the distribution grid, to identify the newrequirements of this system, and propose solutions to address these demands. Some solutions willbe addressed through planning – relaying and protection schemes that will have to be redesigned –while others will require major overhaul of the Energy Management Systems and DistributionManagement Sys

Jun 10, 2011 - Mar 1, 2013

DEP

Research

3262: CPF: Up and Coming Methods to Assess Transmission Line Insulators and an Assessment of Their Potential for Implementation

An investigative study was undertaken to determine whether alternative or up-and-coming diagnostic methods have been developed for effectively measuring the integrity of porcelain, toughened glass and polymer/composite insulators, operating at 69 kV or greater, to warrant further lab testing and field trials. A search of available technical literature and information from the manufacturers of diagnostic technologies was conducted as part of Phase 1 of the project. This initial phase aims to inve

Mar 9, 2015 - Mar 1, 2016

OTE

Research

7056: Best Practices for Solid State Lighting and Adaptive Control Technologies for Street Lighting Utility Rates

The benefits to be gained from emergent solid state lighting and adaptive control technologies promise to be substantial over the coming decade. Light emitting diodes (LEDs) are gaining in popularity, especially for outdoor streetlights, primarily because of their vastly improved efficiencies and potential for long service life. Compared to the legacy streetlights of today, those benefits could translate into new value for outdoor streetlights owned by utilities.Utilities face four primary chall

Dec 5, 2011 - Aug 1, 2012

ADO

DSM

Research

0386: Commissioning Guide for Hydroelectric Generating Stations

The purpose of this Commissioning Guide is to provide general guidelines, best practices, and typical reference procedures to assist engineers in understanding, planning, and carrying out the commissioning of major equipment for hydroelectric stations. The objective of a commissioning program is to ensure that all of the equipment can be operated safely and reliably as an integrated assembly, as required by the design specifications and performance requirements; this is achieved by performing a

Sep 20, 2013 - Dec 6, 2016

Research

3713: Best Practices in Rehabilitating Deficient Grounding Grid Performance

The grounding system of a high voltage substation is responsible for moderating the step and touch voltages inside the yard and outside the fence. This ensures the safety of personnel working at the station and the nearby general public. The ground potential rise (GPR) in the event of fault must also be limited by installing an adequate low impedance grounding system. Recent advances in computer modelling and ground grid testing capabilities have raised questions regarding the performance of old

Dec 2, 2014 - May 16, 2016

GL

Research

5137: Tools to Assess the PQ Impact of Large Penetrations of Modestly Rated DG on Distribution Feeders

This report presents the findings of a project with the primary objective of assessing the impact of large penetrations of modestly rated distributed generating (DG) resources where individually rated generators are less than around 100 kW and applied as single-phase installations. DG technologies falling in this category include solar, fuel-cells, microturbines, and perhaps some induction based wind-turbines. When installed in small numbers such that their aggregate capacity is small in relat

PQ

Research

30105: CPF: Online Monitoring Equipment for Substation Apparatus: State-of-the-Art Review

This project consisted of a state of art review of on-line monitoring equipment for outdoor substation apparatus that will be useful for implementation of equipment on-line monitoring by utility field personnel and their vendors. The project scope included a literature review of available technical and field application information to establish a basis from which to work with regards to this investigation.Service experience was obtained by undertaking a technical survey of utilities presently em

Apr 4, 2018 - Jul 29, 2019

SE

Research

3350: Guide to Best Practices for the Design of 115-230 kV Overhead Transmission Lines

This Guide presents information on the design of 115 kV to 230 kV overhead transmission lines. It presents the elements of 115 kV to 230 kV lines, including materials, configurations, insulation, reliability, EMF, and economics. The objectives of this Guide are to provide a discussion of the factors that must be taken into account in the design of transmission lines and to provide best design practices.The Guide also includes some other (non-design-related) aspects of transmission lines, such as

Sep 1, 2008 - Oct 11, 2011

OTD

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