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5146: Power Quality Impact of Mass Penetration of Energy Efficient Consumer Electronic Devices

This project investigates the potential harmonic impact of compact fluorescent lamps (CFLs) at the residential house level. The impact is characterized by the extra harmonic currents that could be injected into the supply system from individual houses as more CFLs displace the incandescent lamps. The results have been compared with those produced by other home appliances. The project also developed a residential house model and determined the model data suitable for feeder-wide harmonic impact a

Jul 1, 2009

Research

50158: Executive Overview of Rationale For Distribution System Reliability and Resiliency Investments

Distribution system reliability is a major focus area for utilities due to its correlation with revenue, customer satisfaction, customer loyalty, and safety. Investments into the distribution system require careful balancing of priorities, expenses, and benefits. Regulatory and system requirements add further complexity to the asset planning and management of distribution systems. This project, supported by CEATI and DLAM, reviews the trends and practices in distribution system reliability impro

Oct 1, 2019 - Jun 2, 2021

DEP

Research

7067: Estimating Associated Peak Demand Savings from Energy Conservation Measures

The overarching objective of this project is to guide sponsor utilities through the various methodological approaches that are used in the industry for deriving demand impact estimates for DSM measures. This is an important research area because capacity planning is a critical activity for utilities and system operators, and it is often not clear which approaches may be the most applicable in each situation. Different types of measures may utilize various methods to calculate the impact load sha

May 10, 2016 - May 15, 2017

ADO

DSM

Research

5089: Application of Covered Conductors for Medium Voltage Overhead Lines

A decrease in reliability of a distribution network during normal operating conditions, or during wind storms or severe weather, can often be attributed to trees and branches contacting overhead distribution lines. One effective technique to maintain high reliability is to employ insulated conductors. Covered conductors, spacer cables, or aerial bundled cables for primary overhead lines claim to increase reliability of overhead transmission lines in adverse weather conditions, provide protection

Aug 1, 2011

DEP

Research

7028: Benchmark Study to Establish a Test Protocol for Determining the Efficiency of Variable Frequency Drives (VFDs)

Many industrial processes require precise and accurate control over system parameters such as flow, pressure, temperature, process speed, etc. The use of a variable frequency drive (VFD) to match the motor driven equipment’s speed and torque to the requirements of the process load can result in large energy savings, particularly in variable torque or centrifugal loads. It is estimated that 30% of industrial motor systems may benefit from the application of a VFD to control motor speed and

Apr 1, 2009

ADO

DSM

Research

3311: Methods and Systems for Collecting Icing Data and for Real time Monitoring of Ice Storms

This report describes and discusses the data on atmospheric icing needed for probabilistic design and reliable operation of electrical overhead lines and networks. It also recommends instrumentation systems and programs for field data acquisitions according to various levels of requirements as the operator may define them. The report emphasizes the relations between icing data from dedicated devices on ground, data from load cells etc. installed on overhead line conductors, physical models of ic

Oct 1, 2003

OTD

Research

5047: Assessment of the Structural Reliability of Distribution Overhead Wood Pole Lines

Using the results of a survey of the Canadian participant utilities of the CEATI Distribution AssetsLife Cycle Management (DALCM) Interest Group, similarities and differences in the design practicesunder climatic loads for overhead distribution wood pole structures are identified. Structuralreliabilities of these design practices are evaluated through five reference structures includingtangent, terminal (dead‐end) and angle poles with conductors, communication cables andattachments. Similarities

May 1, 2006

DEP

Research

50160: Cost Effective Approaches for Capturing and Analyzing High Resolution Pictures/Data for Distribution Facilities

Distribution assets need to be periodically inspected to ensure that they are functioning in a safe and reliable manner and to ensure a long service life, to maximize Return on Investment (ROI). Increased pressure for infrastructure asset managers to reduce operating costs, including those of inspections, has led to an interest in finding cost-effective approaches to gathering asset condition data.High-resolution, high-quality imagery that could potentially be used in distribution asset inspecti

Jun 11, 2020 - May 28, 2021

DEP

Research

3352: High Intensity Wind Case Study

Wind loadings considered in the design of overhead transmission lines are based on values derived from synoptic boundary layer data (NESC [25], CSA [10], IEC [20]). However, a survey of transmission failures conducted by CIGRE [26] indicated that the majority (80%–100%) of the weather related failures reported by several utilities were attributable to localized high intensity winds (HIW) such as downbursts or tornadoes. Although HIW related failures of transmission lines were first reporte

Aug 1, 2010

OTD

Research

5169: Impact of High Frequency Harmonics on Power System

The characteristics of switched-mode power supplies and the extent of their use have changed significantly in recent years. One consequence is that a wide variety of low voltage loads can now introduce high-frequency harmonics into power systems. This is due to the high-frequency switching operation of the load’s power supply module. Typical frequencies are in the range of 20kHz to 120kHz. The views on the potential power quality impacts of this disturbance vary widely and some of them are

Jun 1, 2014 - Apr 15, 2015

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