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50143: Translating The Health Index Into Probability Of Failure For Distribution Assets

Utilities are under more pressure than ever to maximize the efficiency of their planned spending. In recent years, electric utility asset investment planning has undergone a reform. The industry is moving from traditional run-to-failure or fixed-cycle replacement, to a more probabilistic planning approach. The fundamental building block of these probabilistic approaches has been the age-based hazard rate, or probability of failure (PoF). Utilities are recognizing that numerous factors can affect

Jun 2, 2017 - Jan 1, 2019

DEP

Research

3406B: Acceptable Vibration Limits and Forces in the Vicinity of Underground Cables, Phase II

The purpose of this project was to develop practical guidelines for a safe separation distancebetween the underground XLPE transmission cables and construction activity. Excessiveexposure to ground vibrations could damage the integrity of the extruded metallic sheath ormetal laminate coverings, which prevent moisture from penetrating the insulation. Staticbending and dynamic vibration experiments were performed to determine the mechanicalproperties of the cable as well as the strain and fatigue

Oct 1, 2011 - Feb 1, 2013

TUC

Research

7051: Motor Efficiency Estimating Tool for AC Three Phase Induction Motors Based on Uncoupled Motor Testing

The EEVC1 software is designed to help North America’s electric motor service centers (MotorRewind Shops) to estimate the full-load and partial-load efficiency of 3-phase/60Hz refurbishedinduction motors. The software is supported by a database of a large number of induction motorstested in Laboratoire des Technologies de l'Énergie, Institut de Recherche, Hydro-Québec,Shawinigan, Québec, CANADA. The software is designed based on the Institute of Electrical andElectroni

Sep 25, 2012 - Jun 19, 2014

ADO

DSM

Research

3087: Station Equipment Outage Costs

This report provides guidelines for the identification and assessment of the costs associated with planned equipment outages in substations. The report is based the collective utility experience, gathered through a literature review and survey of electric utilities.Keywords: Equipment Outage, Planned Outages, Reliability, Power Interruptions Costs, Repair and Replacement of Substation Equipment

Jun 17, 2013 - Sep 25, 2014

Research

3046A: Transformer Failure Modes: Causes, Detection and Monitoring - An Information Guide

This work is the first step towards identifying, evaluating, and making recommendations for the application of existing and developing systems for continuous on-line monitoring and automated data interpretation systems for transformers, load tap changers, and bushings. This initial work focuses on a detailed examination of the condition, failure modes, causes, detection methods, supporting diagnostic tests and available monitoring systems for all transformer components. It also inclu

Apr 6, 2010 - Oct 31, 2012

Research

5059B: Demonstration of an Advanced Protection Scheme for a Secondary Network, Phase II

In a prior Phase 1 of this project, the feasibility of improving secondary network protection systems by adding the capability to detect arcing faults in the network cable system was studied. The cost of such a proposed system was estimated.To validate the approach specified in Phase 1, Phase 2 of this project focused on the implementation of a proposed system using commercially available relays from two different manufacturers. The proposed arcing detection system was first set up and tested in

Feb 12, 2012

DEP

Research

5090: Nanotechnology Applications to Electric Distribution Utilities

Over the past quarter century, there have been a number of major achievements in the field of nanotechnology, including the realization of new self-assembled materials such as nanoparticles, nanowires, molecular wires and novel states of carbon such as fullerenes, graphene, carbon nanotubes and nanocomposites formed from the inclusion of these new nanomaterials into existing materials. These new nanocomposite materials have demonstrated significant improvements in the performance of materials im

Aug 26, 2009

DEP

Research

5046: State-of-the-Art Study of Detection and Location of Corrosion in Medium Voltage Cable Shields or Neutrals

A technical literature search and investigation was performed on medium voltage underground and submarine distribution cable for corrosion detection and location on metallic shield/neutral, sheath and armour. Based on the contractor’s working experience and the literature search results, a summary of the test methods and guidelines for applying the methods are given. Six direct techniques were found that are currently being used to detect metallic component corrosion in the field. Four ext

Jun 1, 2005

DEP

Research

5094: Underground Distribution Cable System Reliability Factor Software

The use of an Underground Distribution (UD) Cable System Reliability Factor is a significant development that enables condition information to be used in a consistent manner in order to assist with the end-of-life decision making process as well as to approximate expenditure expectations in future years. The UD Cable System Reliability Factor is meant to simplify the utilities’ implementation of index-based evaluation of UD cable systems, such as underground subdivisions and commercial par

Aug 18, 2011 - Apr 28, 2013

DEP

Research

30113: Translating the Health Index into Probability of Failure

This report looks at the origins and roles of Asset Health Indices (AHIs) and their use in the electric supply industry. It includes examples of systems in use, identifies the shortcomings associated with many AHIs, and suggests how to develop an AHI in a way which preserves calibrated timescales and urgency as well as allows for a derivation of an asset probability of failure (PoF).The report also includes statistics of failures and failure modes, along with background information on the asset

Apr 15, 2016 - Feb 19, 2018

DEP

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