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5024: Condition Assessment of Ground and Anchor Rods Using Shear Wave Ultrasonic Inspection Techniques

A non-destructive evaluation method was developed to detect corrosion on the underground section of anchor and ground rods. The conventional shear wave ultrasonic inspection technique was optimized through a series of experiments simulating the field conditions of anchor and ground rods. An optimized shear wave ultrasonic inspection technique was identified for the inspection of anchor and ground rods. This technique detected penciling type corrosion damage of 30%, 50% and 80% cross-sectional

DEP

Research

5143B-10: Power Factor Correction Case Studies

ABSTRACT: In most industrial facilities, a significant portion of the electrical equipment acts as either a resistor or an inductor. Examples of resistive loads include incandescent lights, baseboard heating, and cooking ovens. Examples of inductive loads include fluorescent lights, ac induction motors, arc welders, and transformers. Capacitor banks also require reactive power to operate. Capacitor banks improve voltage control, reduce current flow, increase system capacity, and reduce system lo

PQ

Research

0225: Comparison of Flood Hazard Estimation Methods for Dam Safety - Phase 1 Task 2

This project provides a structured review of the available and evolving methods for estimating flood flows, where they are used and, importantly, the assumptions and limitations they contain. The project outputs are provided in two task reports. The Task 1 report provides a review of the regulatory frameworks in place around the world and their impact on the estimation of flood flows. The Task 2 report focuses on the estimation approaches themselves and is covered here.The Task 2 report provides

Sep 13, 2011 - Nov 28, 2013

DSIG

Research

4109: Biodiversity, Environmental Stewardship & Integrated Vegetation Management Protocol

VM

Research

3019: Circuit Breaker Asset Management - Information Requirements

The objective of this project was to gather and summarize information, as well as proven andpractical approaches and tools important to Circuit Breaker Asset Management, to enableparticipating LCMSEA participant utilities to learn from worldwide experience on the subject.By means of a literature search and critical review, a user survey and input from circuit breakertechnical experts, the report provides a comprehensive overview of industry practices.Keywords: Circuit Breaker, Asset Management,

SE

Research

3009: Vibration Diagnostic Test to Evaluate Power Transformer Winding

The mechanical integrity of a transformer is maintained in part by the winding clamping system. Loss of the clamping pressure will affect the vibration produced by the transformer. This project makes use of vibration analysis as a technique to detect transformer winding movement and loss of clamping. Vibration data was collected on in-service transformers and an evaluation technique was developed. Improved measuring instrumentation was evaluated, obtained and tested.Keywords: Transformer ins

SE

Research

5158: Power Quality Considerations for Wind Power - Application Guide

The objective of this project was to develop a practical application guide that provides a review of the power quality considerations that are relevant to installing wind turbines on electric power systems. The report includes relevant standards-related information and representative waveforms as well as case studies for a number of wind-related power quality events. The report presents the complex subject of power quality using easily understandable terms, guidelines, and representative exampl

Feb 25, 2011 - Feb 24, 2012

PQ

Research

3421: Transmission Spare Cable Strategy: A Laboratory Assessment of Aged Cables Taken from Spare Cables Stored on Cable Reels

Utilities often maintain short sections of spare cable for use in repairs, including emergency repairs in the event of a failure. Since it is often impractical to manufacture short sections of new cable for emergency repair purposes, the inventory of stored spares is valuable and of strategic importance to utilities. Cables in storage should, in principle, behave as new, since they have not been subjected to any of the electrical stresses for which the cable was designed. However, depending on t

Apr 11, 2018 - Nov 28, 2020

TUC

Research

3041A+B: Optimized Battery and Charger Condition Assessment and Life Extension

Substation batteries should be reliable and trouble-free, and if part of a well-designed system operating under proper environmental and maintenance conditions, should last beyond their nominal design life. However, this is often not the case. Thus, determining the factors that impact battery system life, developing the means to assess battery system conditions, and establishing a proper maintenance program can be expected to extend the life of batteries and battery chargers and reduce costs. Ut

SE

Research

0343B: CPF: Brushgear Maintenance Guide

The Brushgear Maintenance Guide provides a consistent set of definitions for terms commonly used in the design, operation and maintenance of slip ring and commutator type brush gear systems used on hydroelectric generator units.The defined terms are intended to be used in conjunction with other sections of the Brushgear Maintenance Guide, which provide additional information, including key parameters, tolerances, testing and verification procedures for various types of hydroelectric turbine-gene

Aug 1, 2011 - Nov 20, 2013

HPE

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