Direction of Harmonics & Flicker

Published by Arbiter Systems, Inc.  Enabling Tomorrow’s Technology Today Overview As regulatory authorities impose ever-stricter requirements for power quality, utilities increasingly want to know which customer is imposing harmonics and flicker on the utilities power system. As a result, we are often asked if we can determine the “direction” of harmonic power flow, and whatContinue reading “Direction of Harmonics & Flicker”

References for SARFI PQ Index

Published by Terry Chandler, Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA. E-mail: terryc@powerquality.org, terryc@powerquality.co.th FYI, PQView calculates these automatically from the PQView database of all instruments. For more information on PQView, you can visit the blog post PQView & PQView DE System Average RMS (Variation) Frequency represents the average number of specified rms variation measurementContinue reading “References for SARFI PQ Index”

Need of Voltage Quality Regulation in the Future

Published by S.Bhattacharyya, Dr. J.M.A.Myrzik, J.F.G.Cobben, and Prof. W.L.Kling,  Electrical Power Systems Group Technical University Eindhoven Eindhoven, the Netherlands E-mail: s.bhattacharyya@tue.nl M.van Lumig and Dr. M.Didden Business Development Team Laborelec NL Beek-Maastricht Airport, the Netherlands Published in 9th International Conference on Electrical Power Quality and Utilisation Date: 9-11 Oct. 2007, Barcelona, Spain Abstract Electricity as aContinue reading “Need of Voltage Quality Regulation in the Future”

Encore Series UPS Monitoring

Application Note WHERE EVERY MILLISECOND COUNTS! The digital economy has redefined business operations and is setting new standards for electric power reliability and quality. Downtime – undesirable for any business – is catastrophic for Data Centers and other high reliability facilities where even the smallest power quality issue can cause equipment failure, data corruption, andContinue reading “Encore Series UPS Monitoring”

A Comprehensive Review of Power Quality Issues & Measurement for Grid-integrated Wind Turbines

Published by Ahmed F. Zobaa and Ibrahim Ahmed, Department of Electronic and Computer Engineering, Brunel University London, Uxbridge, UB8 3PH, UK. Shady H.E. Abdel Aleem, Mathematical and Physical Sciences, 15th of May Higher Institute of Engineering, Cairo, Egypt. Journal Article: Recent Advances in Electrical & Electronic Engineering, 2019, 12, 210-222 (Volume 12, Issue 3 ,2019)Continue reading “A Comprehensive Review of Power Quality Issues & Measurement for Grid-integrated Wind Turbines”

Power Quality – A Worldwide Problem

Published by Terry Chandler, Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA. January, 2001 E-mail: terryc@powerquality.org, terryc@powerquality.co.th What is Power Quality? The characteristics of the supply voltage and the electrical system that affect the performance of the load. The characteristics of the load that affect the electrical system or other loads. ITIC Curve CBEMA Curve Power QualityContinue reading “Power Quality – A Worldwide Problem”

Evaluating Rapid Voltage Changes & its Propagation Effect using Multipoint Measurement Technique

Published by Muhammad Imam Sudrajat, University of Twente Enschede, The Netherlands, Indonesian Institute of Sciences, South Tangerang, Indonesia    m.i.sudrajat@utwente.nl Niek Moonen, University of Twente Enschede, The Netherlands niek.moonen@utwente.nl Hans Bergsma, Thales Nederland B.V. Hengelo, The Netherlands hans.bergsma@nl.thalesgroup.com Rob Bijman, Thales Nederland B.V. Hengelo, The Netherlands rob.bijman@nl.thalesgroup.com Frank Leferink, University of Twente Enschede, The NetherlandsContinue reading “Evaluating Rapid Voltage Changes & its Propagation Effect using Multipoint Measurement Technique”

PQ Monitoring Standards – What You Need To Know

DESCRIPTION There’s an age-old problem in the Power Quality (PQ) monitoring industry – measure the same circuit with instruments from different manufactures at the same time, and you could get different results! Which one do you believe? Do you trust any of them? There have been electrical energy monitoring standards for many years that defineContinue reading “PQ Monitoring Standards – What You Need To Know”