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3049: Electrical Protection of Telephone Cables Serving Substations

Telephone lines that serve substations must be protected from the currents and voltages generatedduring faults. The main communication service providers (CSPs) in Canada (e.g. Bell, TELUS andothers) use the recommendations in IEEE Std 487 to determine the type of protection required.Protection principles are based on the concepts of ground potential rise (GPR) and zone ofinfluence (ZOI) described in IEEE Std 487. The validity of the ZOI concept when telephone cablesshare the same structures as d

SE

Research

50137: Potential Future Operating Models For Distribution Utilities

As society continues to shift towards cleaner energy options and distributed energy resources (DER), there is a growing need to transition existing distribution systems away from traditional operating models and accommodate more open and robust platforms. The future electricity system must maintain high standards of reliability and resiliency while also addressing operational challenges arising from increased DER penetration. This report first reviews the current state of the electricity grid, e

Feb 12, 2016 - Dec 21, 2016

DEP

Research

50116: Outage Costs

Utilities have always had difficulty in estimating the value of reliability from their customers’ perspective. This lack of understanding makes it difficult for utilities to appropriately plan system improvements to enhance reliability. Regression analysis of customer survey data has been shown to be the best method for predicting the cost impact of outages on various customer classes. Significant limitations include the expense to conduct good surveys, as well as difficulty in applying th

May 24, 2013 - Oct 20, 2014

DEP

Research

3141: Efforts within NERC and FERC on Transmission Resiliency Improvements

Motivated by the significant and fast paced changes on bulk power system (BPS) design, operation and planning landscapes, the Federal Energy Regulatory Commission (FERC) and the North American Electric Reliability Corporation (NERC) are presenting multiple individual and joint efforts toward the development and revision of standards, criteria, policies and regulations to improve the BPS resilience. An extensive review of these agencies resources led to the identification of four core areas of ac

Mar 1, 2021 - Sep 18, 2021

Research

5079B: Arc Flash on an Underground Utility System

An arc flash on a transmission or distribution system results in high energy emission, mostly in the form of heat energy, which may present a burn hazard to nearby individuals. Additionally, the energy released in the form of pressure is of concern for worker safety since the pressure wave could directly injure nearby individuals or could destroy objects resulting in shrapnel that could injure individuals. The arc flash hazard in enclosed spaces, such as manholes, pull pits, and vaults, is of pa

DEP

Research

33129: Self-Damping Measurements and Assessment of HTLS Conductors

OTD

Research

3269: Methods to Assess the Condition of Stockbridge and Spacer Dampers and Identify Installations with Reduced Damper Life Expectancy

The lifespan of dampers and spacer dampers is impossible to predict precisely due to the variables involved; the prediction of the lifespan of the elastomers commonly used in spacer dampers is especially difficult. In response to asset managers’ desire to anticipate lifespans for dampers and spacer dampers, this report suggests the use of CIGRE design recommendations as the basis for identifying those locations and installations where Aeolian vibration problems may be encountered. The life

Mar 15, 2016 - Feb 7, 2018

OTE

Research

3238: Methodology for Ranking Transmission Lines

Determining which are the most critical or least critical circuits in a transmission system will be dependent on your focus within the electric transmission utility. System Planners will have a different perspective than the Customer Service Representative or the Field Services Engineer. The discussions of planned work on the system may get bogged down with arguments over the most critical line rather than the line that should get the attention. Resources are committed to circuit maintenance wit

Jul 1, 2011 - Jun 4, 2013

OTE

Research

0371: CPF: Hydroelectric Industry's Role in Integrating Wind Energy

Over the past decade, the cost of wind energy has become competitive with wholesale power prices. Combined with its positive environmental attributes and public demand for clean energy resources, the expectation is that the magnitude of wind power contributing to the electrical supply mix will continue to increase, perhaps someday exceeding 20% of the electrical energy served. Wind energy, however, is inherently variable and subject to inaccuracies in prediction. This variability and uncertainty

Research

G618: Power Systems Characterization of Chemical Substances

TGIG

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