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30104: Station Equipment: Failure Rates

This project was initiated to identify the failure rates used by utilities for station equipment. There is a need to accurately determine the failure rates for different types of station apparatus and to examine the trends of such rates as an important component of equipment strategy. An increasing trend may indicate that the equipment is approaching its end of life and that specific maintenance, spare parts and replacement strategies should be considered. Management and external regulators requ

Dec 17, 2014 - May 27, 2016

SE

Research

3912B: Digital Station Implementation Guide – Phase II

This Project represents Phase II of a series of digital station implementation guides for developing a substation automation system (SAS). This Guide continues a series of planned guides on this subject and focuses on Engineering guidelines related to IEC 61850 process bus technology. It is envisioned that a series of at least three guides will be developed: one for project definition, planning, architecture, design-station bus design-process bus, and testing. The second guide will focus on the

Aug 29, 2022 - Jun 12, 2024

PC

Research

5182: Mitigation of Harmonic-Caused Problems in Modern Distribution Systems

Present-day distribution systems are experiencing increased harmonic distortion due to the proliferation of single-phase power electronics load supplies. In addition to containing the well-known 5ᵗʰ and 7ᵗʰ harmonics, the distortion has two unique characteristics: (1) there is a significant amount of 3ʳᵈ harmonic, which is mainly in zero-sequence and can cause unique problems for utility customers, and (2) there are no individual customers solely responsible for the harm

Mar 1, 2021 - Jun 21, 2022

PQ

Research

5165: Recloser Schemes for Ground Fault Detection under Single-Phase Tripping and Other Significant Temporary Current Imbalance Conditions

Efforts to improve distribution system reliability by minimizing the number of customers affected by fault interruption has renewed interest among utilities in performing single-phase fault interruption on three-phase distribution system circuits (rather than continuing to use, for example, three-phase tripping for single-phase-to-ground faults). The availability of microprocessor-based recloser controls, coupled with interrupting devices that operate on one, two, or all three phases, results in

Mar 7, 2013 - Sep 1, 2014

PQ

Research

3335: Comparison Between Unbalanced Ice Loads and Security Loads and Assessment of their Impact on Line/Structure Designs

This study compares unbalanced ice loads (UIL) and broken conductor loads (BCL) with climatic loads on various types of lines and structures and assesses their impact on line and structure designs. Five structures and lines from 161 kV to 735 kV, wood, steel pole, and lattice steel were modeled in PLS-CADD, TOWER, and PLS-POLE and analyzed in this study. The types of structures and lines were selected to provide the widest array of spans, insulator lengths, flexibility, and material. Except for

OTD

Research

3072: Power Transformer Specification Guide

This report documents the information collected during this study, including the literature search, analysis of all available data and the utility survey. Based on the direct experience and knowledge gained from project authors developing transformer specifications collectively for over 80 years, as well as the analysis of all data, the report provides the utilities with the recommended specification clauses and other good practices that can help utilities with their transformer specification ne

Jul 1, 2011 - Sep 10, 2013

SE

Research

5124: Incentives and Penalties for Electrical Power Quality Under Performance Based Regulation

Electricity distribution regulators are increasingly utilizing performance-based ratemaking (PBR) as a tool to promote efficiency in the provision of distribution services. Because of the cost pressures of deregulation and PBR regulation, most PBR schemes include minimum service quality requirements to ensure that utility service quality performance does not fall below desired levels. Most PBR regulatory schemes enforce the minimum standards for service quality performance through economic inc

PQ

Research

3398B-8: Construction: Issues and Challenges

OTD

Research

3338: Safety Measures During Emergency Restoration

This report provides recommendations for the safety of utility emergency restoration workers, other emergency responders and the public during the restoration of power due to emergency situations.The intent is to assist the sponsoring utilities in developing proper safety procedures for their emergency response personnel and the public during catastrophic situations to minimize injuries or deaths due to accidents.Keywords: Emergency, catastrophic events, safety, emergency restoration, restoratio

OTD

Research

0218: Gauging the Effectiveness of Dam Safety Programs

The concept for the project, ‘Gauging the Effectiveness of Dam Safety Programs’, originated with a half-day workshop on this topic in Vancouver on 21 October 2007. As finally commissioned, the objective of the project was to enable dam owners and operators to review and improve the ways in which they judge the effectiveness of their dam safety programs by providing information on the ways in which other dam owners assess their programs, and by then providing an opportunity for dialog

DSIG

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