Search results

Events

Research

Selected Filters

No filters selected.

Interest Group

Viewing 70 - 80 of 2177

Sort By

Relevance

Research

5143B-14: Capacitor Bank Switching Transients

ABSTRACT: Utility capacitor banks are a key component for efficient distribution system design. Design considerations often include traditional power frequency issues such as voltage support, power factor correction, and released system capacity. However, future designs will also include power quality as a consideration as customer facilities continue the transition towards sensitive power electronic-based systems. The increasing dependence on sophisticated electronic controls and automated manu

Mar 1, 2010

Research

50118B: Distribution System Health Indices: A Simplified Methodology

This project 50/118 developed simplified health index algorithms based on existing best practice algorithms to calculate health indices where the full set of condition parameters is not available. The algorithms were tested for sensitivity and applied to real-world failed asset data. The resulting study revealed that a “gateway” model is better suited to applying health indexing to assets with critical condition issues. Based on the “gateway” methodology, a “simplif

May 12, 2017 - Feb 13, 2019

DEP

Research

G31: Development of An Effective Nde Method To Detect Areas of Lack of Bond Between Mating Surfaces of Fibreglass Piping

The objective of this project was "to develop a simple non-destructive examination procedure and supporting technique, to be used by utilities during the installation of fiberglass piping systems. This procedure will be used to determine the percentage of disbond mating surfaces when installing fiberglass piping systems".

Jan 8, 2007

TGIG

Research

3117: Power System Stabilizers - Application, Practical Considerations and Guideline for Tuning

Power system stabilizers (PSSs) have been utilized in the electric power industry since the 1970's. The concept was first introduced by De Mello and Concordia in 1969, based on the fundamental concepts of damping and synchronizing torques. Although much research has been done in developing more refined methods for tuning and designing PSSs in the four decades that have followed, the fundamental theoretical basis is still the same - namely, for a PSS to be effective, it must induce significant ad

Feb 1, 2010

PSPO

Research

3230B: CPF: Condition Assessment of Below Grade Steel Structures and Life Extension Methodologies: Rewrite, Improve and Properly Reference Content

This report presents a technology review of methodologies for the assessment of below-grade corrosion damage in stand-alone and concrete-encased steel members that support transmission line structures, with an emphasis on guy-anchor rods and lattice tower members. First, based on the outcomes of a world-wide survey of utilities, baseline information are presented on how leading utilities assess and maintain buried members of overhead transmission line steel structures, and what structures are of

Feb 23, 2014 - Dec 1, 2014

OTE

Research

0509: Study on the State of the Art of Wind Energy Forecasting for the Electric Utility Industry

Short-term forecasting of wind farm production is an important issue for the wind energy industry, whose variable nature puts it in a unique position compared to other conventional modes of electricity production. Depending on the wind energy penetration rate*, the ability to accurately forecast short-term wind power production can allow for substantial savings. Many major utilities with significant capacity of wind in their supply mix regularly rely on wind energy forecasting models to help the

Apr 1, 2006

E&IS

Research

3712: Substation Grounding Design Review Spreadsheet

Under line to ground fault conditions, the available Ground Potential Rise (GPR) on a grounding system and resulting Step/Touch voltages must be within safe and tolerable levels. These voltages are calculated using grounding system design software. Field measurements are taken for soil electrical resistivity to use as input for the design software used in these calculations.This project provides a tool, in a spreadsheet table form, to predict GPR and Step/Touch safety conditions knowing the appr

Jul 3, 2014 - Aug 3, 2015

Research

0310: CPF: Methods to Assess Condition at Hydroelectric Plants Survey of HPLIG Participants

The objective of this study was to catalog procedures and approaches for assessing the condition of hydroelectric assets overall, by unit, and by major classes of equipment. The decision making process related to investment in hydroelectric assets was also described. Various assessment methods were compared and contrasted.

Apr 30, 2001

HPE

Research

3216: CPF: Technology Watch on Polymer Insulator Knowledge

Polymer (composite) insulators for electric power transmission lines have evolved since their initialcommercial success in the 1980s to mature designs that, on average, deliver similar or betterreliability than reported for ceramic insulators in utility surveys. However, detection of polymerinsulator deterioration prior to end of life failure does not have a well-developed history. Live-linetechniques that work well for ceramic insulators, such as visual inspection, “buzz” and &ldquo

Mar 1, 2009

OTE

Research

5159: Effective Collection and Management of Power Quality Data for Analysis and Detection of Incipient Distribution System Components Faults and Identification of their Locations

The objective of this project was to develop a practical application guide that provides a review of important methods for collecting, processing, and analyzing measured power quality data with a goal of identifying poor equipment performance and system insulation weaknesses. The report includes relevant standards-related information and representative waveforms, and case studies highlighting waveform identification and analysis methods. The report presents guidelines and strategies for utilitie

Mar 23, 2012 - May 15, 2013

8 of 218

Viewing 70 - 80 of 2177

Selected Filters

No filters selected.