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0350: Dissolved Oxygen Monitoring Technologies Applicable to Hydraulic Generating Station Reservoirs, Tailraces and Spillways

The purpose of this project was to conduct a comprehensive review of available dissolved oxygen(DO) monitoring equipment. This report provides useful information regarding the technologiesand equipment available for monitoring DO in aquatic environments.Technological advances of thepast 40 years have allowed more detailed analysis of DO in terms of data acquisition andmeasurement type. These varying types of DO measurement devices, which differ in terms of datacollection processes and efficiency

Research

3279: CPF: Managing Transmission Line Safety and Reliability Risks through Inspection

Utilities manage the safety and reliability risks of overhead lines through inspection programs designed to detect conditions that warrant mitigation, with an objective to pre-empt or postpone the occurrence of some types of failures. Inspection programs consider age, condition, operating environment, feasibility of performing routine maintenance, regulatory requirements, and other factors in setting the frequency and scope of routine and special patrols. This project provides resources that hig

Mar 1, 2018 - Oct 2, 2019

OTE

Research

30103: Maintenance Triggers & Intervals

This report presents the results of a benchmarking survey prepared by the LCMSEA Interest Group of CEATI International to identify and document the triggers used by member utilities to initiate specific maintenance tasks for station equipment within their respective maintenance programs.Recently completed reports documented the maintenance tasks and condition assessment factors used by CEATI member utilities. Project 3075 “Benchmarking of utility Maintenance Practices for Station Equipment

Sep 4, 2014 - Feb 8, 2016

SE

Research

5111: Approaches for Embedded Solutions

The impact of power quality variations to a specific end-user is naturally dependent on the electric power requirements of the equipment, process, or facility in question. Equipment manufacturers make design and marketing decisions that ultimately define the inherent power quality withstand capability of their equipment. This report describes technical approaches for increasing equipment immunity to power quality disturbances, including evaluation of the adequacy of existing equipment performanc

PQ

Research

0143: Generator Maintenance and Condition Assessment Guide

Large turbine generators - whether steam or gas driven - are large, expensive, and complex machines. Utilities strive to maximize the reliability and availability of these assets while simultaneously ensuring that they are operated safely. These machines are designed to have economic lifetimes in the range of 20-50 years. Whether a generator is able to achieve this number of years of service is dependent on the operating environment and the timely application of maintenance. In addition, many la

Mar 1, 2016 - Dec 16, 2016

TGIG

Research

0601B: Generation Guideline for Risk Management - Phase 2

AMIG

Research

5119: A New Approach to Power Quality Measurement Protocol

This report documents a Power Quality Measurement Protocol for the detection, classification and characterisation of power quality disturbances. A power quality measurement protocol is a set of well-defined algorithms that transform raw waveform data into a set of meaningful indices. The need for a PQ measurement protocol was identified in the early 90's, and a CEA project called ""Power Quality Measurement Protocol - CEA Guide to Performing Power Quality Surveys"" was initiated in 1991 for this

PQ

Research

3015: Effective Monitoring Technology for Circuit Breakers

The objective of this report was to provide an up-to-date and comprehensive review of available on-line circuit breaker monitoring devices and systems, and to identify where and when these devices can facilitate effective maintenance program planning.By means of a literature search, a user survey and input from circuit breaker technical experts, the report reaches conclusions on the desirable attributes and functionality of circuit breaker monitoring devices, as well as critical parameters that

SE

Research

5108: Techniques to Assess Harmonic Distortions for Systems with Distributed Harmonic Sources

Harmonic distortions are traditionally caused by a few large centralized nonlinear loads. In recent years, the widespread use of variable frequency drives and similar devices has changed this situation. Systems with a large number of distributed harmonic sources are becoming a concern for utilities. Unfortunately, there are no methods available to predict the harmonic distortion levels in such systems. Traditional harmonic analysis techniques and associated commercial software packages are inade

PQ

Research

5143B-06: Capacitor Bank Restrike Case Study

ABSTRACT: Capacitor bank switch restrike events often produce high transient voltage surges that result in severe energy duties for adjacent arresters or damage unprotected equipment. Therefore, it is desirable to select a switching device that will minimize the possibility of a restrike. In addition, it is advisable to protect adjacent equipment with appropriately rated arresters. A capacitor bank switching device de-energizes the bank at a current of zero. Since the current is capacitive, the

PQ

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