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”

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”

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 definesContinue reading “The Challenges of Harmonic Measurements to Identify the Source of Harmonic Distortion in a Network”

Harmonics Analysis using PX5-400 & DV6 Enterprise Software

The Power Xplorer integrates the most advanced feature set available in a power monitoring instrument, with an easy-to-navigate, color graphical user interface. With high-speed sampling and data capture (1 microsecond/channel), this 8-channel workhorse simultaneously captures and characterizes thousands of parameters, using a range of standard and customizable operating modes. The unique measurement capabilities of theContinue reading “Harmonics Analysis using PX5-400 & DV6 Enterprise Software”

Harmonic Distortion of Current

Office building with personal computers, terminals, copiers, and other electric office equipment supplied by three-phase wye service. Facility engineers at this site experienced repeated problems with the failure of electrical distribution equipment. A distribution transformer overheated and failed, circuit breakers were tripping, and electrical connectors were burning out. These problems are all symptomatic of overloadContinue reading “Harmonic Distortion of Current”

Harmonics Generated from the Source

The subject company manufactures meat products such as sausage, salami, and bologna. Most of their load consists of HVAC and refrigeration as they have about 6000 sq. ft. of cold room storage. They also have machinery such as grinders, slicers, and presses. The facility is served by a 120/240V through a utility-owned 500 kVA High-LegContinue reading “Harmonics Generated from the Source”