Yearly Archives: 2020

EP1 Advanced Harmonic Analysis Capability of DV7 Enterprise

Energy Platform® EP1 – Handheld Electrical Energy and Power Demand Analyzer Dran-View 7 (DV7) Enterprise is a Windows based software package that enables power professionals to visualize and analyze power and energy monitoring data simply and quickly. Harmonics As the sensitivity of power electronics increases, equipment ranging from HVAC systems, personal computers to computerized processContinue reading “EP1 Advanced Harmonic Analysis Capability of DV7 Enterprise”

Harmonics Data Analysis with Dran-View 7 (DV7) Enterprise Software

To do advanced harmonic analysis using the postprocessing capability of Dran-View 7 (DV7) Enterprise. Note: Use the waveform capture on periodic basis to collect the most useful data but not necessary for normal PQ activity and reports. The steps below give a few examples. Step 1. Open the data file of the site of interestContinue reading “Harmonics Data Analysis with Dran-View 7 (DV7) Enterprise Software”

Power Quality & Quality of Supply A Global Continuously Developing Engineering Challenge

Published by Terry Chandler, A Power Quality Practitioner ™ for +30 years, Director of Engineering Power Quality Thailand LTD/Power Quality Inc. USA, Consultant for Dranetz Corporation USA (Asia business Unit General Manager) Contact TerryC@powerquality.org What is Power Quality (PQ)? The characteristics of the supply voltage and the electrical system that affect the performance of theContinue reading “Power Quality & Quality of Supply A Global Continuously Developing Engineering Challenge”

Accuracy of Harmonic Voltage Measurements in the Frequency Range up to 5kHz using Conventional Instrument Transformers

Published by Jan Meyer, Robert Stiegler, Matthias Klatt, Technische Universitaet Dresden, Germany (Jan.Meyer@tu-dresden.de) Micheal Elst, RITZ Instrument Transformers GmbH, Germany (Michael.Elst@ritz-international.com) Erik Sperling, PFIFFNER Instrument Transformer Ltd. Switzerland (Erik.Sperling@pwm.ch) 21st International Conference on Electricity Distribution, Frankfurt, 6-9 June 2011 (Paper 0917) Abstract The measurement of harmonic currents and voltages is a key issue e.g. forContinue reading “Accuracy of Harmonic Voltage Measurements in the Frequency Range up to 5kHz using Conventional Instrument Transformers”

IEC Characterize Events Overview

Application note for the Dranetz automatic characterizer in HDPQ portable instruments. Overview The RMS variation characterizer analyzes cyclic records saved in the database and determines which of those records constitute an event based on a selected criterion. The result is a database record that contains the description of the event, detail of the event, andContinue reading “IEC Characterize Events Overview”

The Challenges of Harmonic Measurements to Identify the Source of Harmonic Distortion in a Network

Published by Terry Chandler, A Power Quality Practitioner ™ for 30 years, Director of Engineering Power Quality Thailand LTD/Power Quality Inc. USA,Consultant for Dranetz Corporation USA (Asia business unit General manager) Harmonics defined by multiple standards around the world. IEC 61000-4-7 Class I defines harmonics and how to measure them. IEEE 519-2014 defines harmonic limits.Continue reading “The Challenges of Harmonic Measurements to Identify the Source of Harmonic Distortion in a Network”