The Importance of Good Power Quality

Published by Dr. Kurt Schipman & Dr. François Delincé , ABB Power Quality Products, Belgium ABSTRACT This paper explains the problems that are due to poor Power Quality in electrical systems and shows their possible financial consequences. Power Quality is characterized by parameters that express harmonic pollution, reactive power, and load unbalance. The best possibleContinue reading “The Importance of Good Power Quality”

Smart Capacitor

Published by Wendy Wang, Jiangsu Modern Electric Technology Co., Ltd. The first developer of smart capacitor in China; Nantong, Jiangsu, China. Introduction Smart capacitor integrates such advanced technologies as modern measure-control, power electronics, network communication, automation control, power capacitor and others. It changes the outdated controller technology of traditional reactive power compensation device and theContinue reading “Smart Capacitor”

Voltage Disturbances Flicker Measurement

Published by Zbigniew Hanzelka & Andrzej Bie´n, AGH University of Science and Technology, October 2005 Flicker Measurement Introduction The power supply network voltage varies over time due to perturbations that occur in the processes of electricity generation, transmission, and distribution. Interaction of electrical loads with the network causes further deterioration of the electrical power quality.Continue reading “Voltage Disturbances Flicker Measurement”

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:, 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: 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:, 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”