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5071C: Non-Destructive Condition Assessment of ACSR Distribution Conductors: Develop and Manufacture a Production Version of a Conductor Tester for Distribution Lines

This project, Phase 4, “Non-Destructive Condition Assessment of ACSR Distribution Conductors – Develop and Manufacture a Production Version of a Conductor Tester for Distribution Lines” is a continuation of a series of research on non-destructive condition assessments of ACSR distribution conductors; Phase 1 was completed in 2005, Phase 2 was completed in 2009 and Phase 3 was completed in 2010. The objective of Phase 1 was to provide a summary of the technical and work method i

May 21, 2013 - Dec 12, 2014

DEP

Research

5079C: Arc Flash and Arc Blast Hazards On Underground Utility Systems, Phase I: Scoping Study for Arc Flash Testing

Existing arc flash models are designed for (1) open space scenarios and (2) arc-in-a-box scenarios,where the worker is located in front of the “box.” CEATI project 5079B investigated a third scenario– the “enclosed space” scenario. In this scenario, the worker is located in a small enclosed space, suchas a vault or a manhole, and an arc flash occurs inside this space. CEATI project 5079B resulted in amodel that is geared towards predicting incident energies for &ldq

Apr 20, 2011 - Nov 12, 2012

DEP

Research

50163: Strategies to Reduce the Risk of Technological Obsolescence of Distribution Equipment

The accelerating pace of technological change and modernization in the utility sector has given rise to the risk of obsolescence of new technologies deployed as part of a grid infrastructure. The objective of this study was to investigate strategies to reduce the risk of technological obsolescence of electrical distribution equipment, including revenue meters, relays (including relays outside the station fence), reclosers, load break switches, voltage regulators, capacitor banks, faulted circuit

Feb 12, 2021 - Jan 19, 2022

DEP

Research

5051: Ultrasonic Assessment of Porcelain Insulated Fused Cutouts

Porcelain insulated cutouts are commonly used by North American utilities. Typically, the insulator portion of the cutout fails gradually due to hairline cracks which develop in the porcelain. It would be desirable to have available a rapid, easy and relatively inexpensive non-destructive method to evaluate the mechanical condition of the insulator. The objective of the project was to develop a prototype device for the cutouts field testing. Keywords:Ultrasound, Resonance technique, Porcelain cu

Dec 1, 2005

DEP

Research

5076: State-Of-The-Art Assessment of Requirements for Attachments of WiFi Equipments to Electric Utility Facilities

In recent years, electric utilities have been receiving an ever increasing number of requests to attach WiFi equipment to their systems. Some promises are being made to provide sponsors and school districts with “free” internet service to help the WiFi provider gain access to the electric utility system. Many utilities are not prepared to respond to these requests. This is often due to the fact that the electric utility industry has not had sufficient time to formally review and comm

Jul 1, 2009

DEP

Research

50144: Testing Based Condition Assessment of Medium Voltage Distribution Cables

There are many diagnostic techniques commercially available for medium voltage (MV) cable systems. These techniques have varying sensitivities and modes of application. However, since there is no North American standard for test-based condition assessment of MV cable systems, circuit owners are faced with what can be a confusing array of choices and selection of the most appropriate techniques for a particular application can be challenging. Several independent bodies such as CEATI, NEETRAC, and

May 15, 2017 - Jul 12, 2018

DEP

Research

5082: Resiliency of Overhead Lines to Trees and Branches

Many utilities experience severe weather patterns that affect their System Average Interruption Duration Index (SAIDI) and System Average Interruption Frequency Index (SAIFI) reliability statistics. Reliability indices are important measures of a utility’s distribution system performance and are monitored to achieve high levels of service and safety.The increase in SAIDI and SAIFI during wind storms or severe weather can often be attributed to trees and branches contacting overhead distrib

Apr 1, 2011

DEP

Research

50108: Detection Of Unintentional Islanding On Distribution Systems

There are a number of challenges associated with the increased penetration of DistributedGeneration (DG) in distribution circuits – one of them is the danger associated with creatingunintentional islands. Islanding refers to the condition in which the DG is isolated on a portion ofthe electric power system and operates as an "island" that is separated from the area electric powersystem. Islanding is often referred to as “loss-of-mains.” DG must have the capability to reliablyde

Mar 1, 2012 - Jan 16, 2013

DEP

Research

3229: Satellite Technology Applications for Monitoring Electric Utility T&D Assets and Rights-of-Way

A review of the potential applications of Earth observation satellites was carried out for the benefit of the electric utility industry to determine the feasibility of using the technology in its operations. Focusing on nine specific activities that usually make use of aerial photography and other forms of detailed geospatial data/information, the study provides examples of potential applications and assesses their likelihood of implementation and the forecasted barriers to their introduction. T

Apr 1, 2011

DEP

OTE

Research

5075D: Worker Protection on De-Energized Underground System- Phase IV

This project is a continuation of previous studies on the safety conditions for personnel working on de-energized overhead distribution lines. More specifically, this study extends the previous works to underground systems with voltage levels of up to 35 kV. The focus is on protecting personnel working on de-energized cables from shock hazards due to accidental energization and electromagnetic coupling of nearby energized cables. In principle, the same worker protection methods currently being u

Mar 7, 2013 - Sep 3, 2014

DEP

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