Author Archives: PQBlog

The Smart on-field Meter Accuracy Investigation System for PEA 4.0

Published by Mr.Chitchai Srithapon, Customer Service Division, Provincial Electricity Authority, Email: chichai.sri@pea.co.th Mr.Pichai Thaniwan, Customer Service Division, Provincial Electricity Authority, Email: phichi.tha08@gmail.com Mr.Weerachat Khuleedee, Customer Service Division, Provincial Electricity Authority, Email: weerachat_ee35@hotmail.com Mr.Wacharapong Rakapong, Information System Division, Provincial Electricity Authority, Email: nidpea@gmail.com Published in PEACON & INNOVATION 2018 “PEA4.0 : Road to Digital Utility” 24th–Continue reading “The Smart on-field Meter Accuracy Investigation System for PEA 4.0”

Dran-View 7 Software

Published by Dranetz Our instruments are great, but Dran-View 7 software makes them better! Much more than just a viewer, Dran-View adds value to any power survey.  Used by tens of thousands of power professionals, Dran-View is included with most of our portable instrument packages, including HDPQ and DranXperT: Easily see recorded trends & eventContinue reading “Dran-View 7 Software”

Power Quality Issues at Utilities Serving Rural Areas and Smaller Towns

Published by Dr. Sioe T. Mak, Power Quality Specialist and Steven E. Spencer , President – CEO, ADVANTAGE ENGINEERING, Inc. 769 Spirit of St. Louis Blvd., Chesterfield, MO. 63005, USA, Tel. 314-530-0470, Fax. 314-530-0670, E-mail ae@inlink.com ABSTRACT Many small and medium size industries and very large farming operations move into rural areas and small townsContinue reading “Power Quality Issues at Utilities Serving Rural Areas and Smaller Towns”

Nonlinear Loads Effect on Harmonic Distortion and Losses of Distribution Networks

Published by Mohammad Jawad Ghorbani, Salar Atashpar, Arash Mehrafrooz, Iran Energy Efficiency Organization (IEEO), Tehran, Iran. Emails: mjghorbany@ee.sharif.edu, s_atashpar@yahoo.com, arashmehrafrooz@saba.org.ir, Hossein Mokhtari, Sharif University of Tech, Tehran, Iran. Email: Mokhtari@sharif.edu Published in 26th International Power System Conference, Oct 31st – Nov 2nd, 2011, Tehran, Iran. Keywords-component; Harmonic Distortion, Loss estimation, Non-linear loads, Norton equivalent model,Continue reading “Nonlinear Loads Effect on Harmonic Distortion and Losses of Distribution Networks”

Why Specifying IEC 61000-4-30 Class A Is Not Enough

Published By Terry Chandler Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA. Emails: terryc@powerquality.org, terryc@powerquality.co.th 1. A new revision of the IEC standard for PQ monitors 61000-4-30 Class Edition 3 2015 has been released. Why? It includes new parameters and new requirements for accuracy over the entire operating temperature range. 2. The PQ Instrument must haveContinue reading “Why Specifying IEC 61000-4-30 Class A Is Not Enough”

PQDiffractor is a Free PQDIF and COMTRADE Viewer

Published by The Electrotek Team PQView 4 brings you a smooth interface for viewing PQDIF and COMTRADE files, along with a wealth of other power quality monitoring and analytical capabilities. But what if you’re in a pinch and only need the file viewer? PQDiffractor is a PQDIF and COMTRADE viewer written by Electrotek Concepts, Inc. forContinue reading “PQDiffractor is a Free PQDIF and COMTRADE Viewer”

Laboratory Investigation of the Input Current Characteristics of Modern Domestic Appliances for Varying Supply Voltage Conditions

Published by Sean Elphick, Senior Member, IEEE University of Wollongong, elpho@uow.edu.auPhilip Ciufo, Senior Member, IEEE University of Wollongong, ciufo@uow.edu.auSarath Perera, Member, IEEE, University of Wollongong, sarath@uow.edu.au Publication Details S. Elphick, P. Ciufo & S. Perera, “Laboratory investigation of the input current characteristics of modern domestic appliances for varying supply voltage conditions,” in 14th International ConferenceContinue reading “Laboratory Investigation of the Input Current Characteristics of Modern Domestic Appliances for Varying Supply Voltage Conditions”

Phasor-Based Approach for Harmonic Assessment from Multiple Distributed Energy Resources

Published by Reza Arghandeh & Alexandra von Meier, Member IEEE, CIEE, EECS Dept, University of California, Berkeley, Berkeley, CA, USA. Email: arghandeh@berkeley.ed Robert Broadwater, Senior Member IEEE, ECE Dept Virginia Tech, Blacksburg, VA, USA Abstract — This paper analyzes impacts and interactions of harmonics from multiple sources, especially distributed energy resources, on distribution networks. WeContinue reading “Phasor-Based Approach for Harmonic Assessment from Multiple Distributed Energy Resources”