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7076: Energy Efficient Technologies for Commercial Buildings

This project aims to review and assess emerging technologies that are most likely to realize electricity savings in existing commercial buildings (e.g., offices, restaurants, retail, supermarkets, schools, universities, hotels, apartments, multiunit residential buildings, etc.).For this study, small buildings (up to 10,000 ft2 or smaller), medium buildings (up to 50,000 ft2 or smaller), and larger buildings (up to 100,000 ft2), respectively, are considered. The technologies of interest for energ

Oct 13, 2021

ADO

DSM

Research

30136: Optimal Practices for Substation Maintenance

In recent years, there have been developments which have had significant effects on substation maintenance practices. These include the adoption (formally or informally) of the asset management business model; increased focus by regulatory bodies on availability of facilities; increased availability of equipment, usage and performance data from SCADA, protection systems, and intelligent equipment monitoring systems; and the use of sophisticated maintenance management software and health index/co

Apr 23, 2020 - Mar 8, 2021

Research

50119: Distribution Inspection & Maintenance Cycle Comparison of Utility Practices

DALCM IG conducted a survey on distribution inspection and maintenance practices of member utilities. This survey is a rich source data and in order to increase its usefulness to utilities, this study was sponsored to carefully analyze the information and to summarize it in an easy-to-use format; this includes some statistical analysis of responses and a summary of common practices. A project like this should benefit DALCM member utilities by making it easier to identify common practices.The sco

Oct 31, 2013 - May 1, 2014

DEP

Research

3059: SF6 Gas Handling and Control

This report summarizes a best practices guide for the handling and control of SF6 used by electric utilities. This project included a literature review, a utility survey, and a review of existing and pending legislation and documented the best practices for the management of SF6. Issues arising from the handling of blended SF6 gas were also addressed including the criteria for the re-use of these blends. As leak detection and repair is becoming a major concern for utilities due to the environmen

Jun 1, 2011

Research

33113: Understanding and Development of a Database for Line Failures

Infrequent failures of overhead transmission line (OHTL) facilities, particularly under extreme loading conditions, are inevitable if engineers are doing their jobs effectively as it’s impractical and unreasonable from the perspective of costs to design, construct and maintain facilities such that there is zero risk of failure. Therefore, failures will occur and when they do there is much to be learned.However, all too often information that could prove invaluable to improve design, procur

Jul 5, 2017 - Jul 19, 2018

OTD

Research

0128: Damage to CCGT Plant due to Cyclic Operation

The principal aims of this study are to collate and review available information and experience on the operation of combined cycle plant under cycling conditions. Specific objectives are:To identify the key engineering threatsTo identify operational constraintsTo assess the impact on engineering and operating costsTo provide guidelines on how to solve the problems associated with CCGT cyclic operationThe management of the cycling of plant in terms of operating procedures, staff training and rela

Jul 30, 2010

TGIG

Research

5151: Development of a Flicker Evaluation Program

AUSketcher is a flicker simulation/prediction software application designed to utilize readily-available input data to predict short-term flicker severity (Pst) values that could be present anywhere in the system modeled. The user builds a positive sequence model of a power system and provides information about fluctuating loads that are in the system. Using this information, the software calculates fluctuating voltages at each bus in the system model and, using these fluctuating voltages, calcu

Sep 7, 2009 - Apr 1, 2013

Research

3065: Breaker Failure Modes: Causes, Detection and Monitoring

High voltage power circuit breakers installed on the power system are required to perform a wide range of switching and protective duties. These duties range from interrupting high fault currents of up to 80 kA down to the relatively low currents associated with switching loads, transmission lines and cables, and shunt capacitor and reactor banks. A very limited number of high voltage circuit breakers having exceptionally high short circuit ratings of 87.5 kA and 100 kA have been installed on th

May 15, 2009

Research

33103: Seismic Effects on Transmission Lines and its Major Components

Transmission lines and their major components are critical infrastructure for electrical power transmission and are used throughout the world. The state-of-the-practice for the design of transmission line structures is commonly governed by loading caused by wind/ice combinations and broken wire forces. However, earthquake effects are not commonly considered in transmission line structural design, even in high risk seismic areas. A survey conducted as part of this project shows that the majority

Jul 20, 2015 - May 15, 2017

OTD

Research

7018: The Heat Pump Reference Guide

The guide explains how a heat pump works, the important considerations in buying a heat pump, the different operating cycles, the efficiency definitions and performance standards used by industry and what influences energy savings. The guide goes into greater depth describing the characteristics of the wide range of heat pumps in the market both for residential, commerical and industrial heating and cooling applications.Installation considerations, what goes wrong with heat pumps, training progr

Jul 5, 2006 - Oct 30, 2006

ADO

DSM

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