Author Archives: PQBlog

Power Quality Considerations of Wind Power Plants

Published by David Mueller, P.E., Manager, Power System Studies, Electrotek Concepts, Inc., Knoxville, Tennessee, USA Email: davem@electrotek.com Presented at 2010 Georgia Tech Fault Disturbance Analysis Conference Abstract Wind power plants are the fastest growing power generation source, and this trend is expected to continue. This paper describes the different types of wind power turbine electricalContinue reading “Power Quality Considerations of Wind Power Plants”

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”