Author Archives: PQBlog

The Evolution of Revenue Meters to Smart Meters

with Terence (Terry) E. Chandler, Founder and Director of Engineering, Power Quality Inc. Tuesday, March 2nd at 11:00 am  – 12:00 pm (EST) Join us on Tuesday, March 2nd at 11 am (EST) as we welcome industry expert and Powermetrix distributor Terry Chandler from Power Quality Inc. to discuss the evolution of revenue meters to smart meters. Terry has moreContinue reading “The Evolution of Revenue Meters to Smart Meters”

Potential Effects of Low Steady State Voltage for Energy Efficiency Improvements on PQ

Published by Bill Howe, P.E., Program Manager, EPRI Power Quality Manager Presented at EPRI PQ and Smart Distribution 2010 Conference and Exhibition:Transporting You into the 21st Century Distribution System, June 14th – 17th, 2010

Case Studies of Harmonic Problems, Analysis, & Solutions on Transmission Systems

Published by David Mueller, Manager, Power System Studies, Electrotek Concepts Inc., Knoxville, Tennessee, USA Email: dmueller@electrotek.com Published in: 2007 9th International Conference on Electrical Power Quality and Utilisation Abstract Transmission systems around the world are increasingly applying capacitor banks on their transmission systems, primarily to support transmission systems and avoid voltage collapse issues leading toContinue reading “Case Studies of Harmonic Problems, Analysis, & Solutions on Transmission Systems”

WideRangeFlexCT™ Accuracy

Application Note 06-01-2015 Published by Radian Research, Inc.  Trademarked flex CT interface WideRangeFlexCT™ measures currents from 1A to 2500A without requiring the user to set specific ranges. Internally there are 3 measurement ranges that are automatically switched between. The measurement error depends on which range is active, these ranges are 1.00A – 18.00A, 18.0A –Continue reading “WideRangeFlexCT™ Accuracy”

Measuring Earth Resistance

Published by E. Hering, Dresden (Germany) Earth resistance is a key parameter in determining the efficiency of earthing systems. In this article we look at the measurement of earth resistance 1 A Few Fundamentals 1.1 Earth resistance and earth impedance The efficiency of an earthing system is principally determined by its impedance ZE. As canContinue reading “Measuring Earth Resistance”

Application Note Earthing Systems: Fundamentals of Calculation & Design

Application Note Published by H. Markiewicz and A. Klajn, November 2014 ECI Publication No. Cu0120 Document Issue Control Sheet Document Title: Application Note – Earthing Systems: Fundamentals of Calculation and Design Publication No: Cu0120 Issue: 03 Release: June 2003 Author(s): H. Markiewicz and A. Klajn Reviewer(s): D. Chapman, S. Fassbiner Document History Issue Date PurposeContinue reading “Application Note Earthing Systems: Fundamentals of Calculation & Design”

2013 Cost of Data Center Outages

Published by Ponemon Institute LLC, December 2013. Ponemon Institute© Research Report is Sponsored by Emerson Network Power. Part 1. Executive Summary Ponemon Institute and Emerson Network Power are pleased to present the results of the 2013 Cost of Data Center Outages. First conducted in 2010, the purpose of this benchmark study is to determine theContinue reading “2013 Cost of Data Center Outages”