Published by EATON, Powering Business Worldwide Application Note AP040094EN, Effective November 2014 Introduction Recent changes have been made to IEEE 519. These revisions add clarity to the 1992 document as well as present new definitions, methods and recommendations. This brief summary of changes to IEEE 519 as it pertains to low voltage adjustable frequency drivesContinue reading “The Effects of Changes to IEEE 519-1992 to 2014”
Tag Archives: Harmonics
Active Harmonic Mitigation – What the Manufacturers Don’t Tell You!
Published by Tony Hoevenaars, PEng., MIRUS International Inc.
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”
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”
Effect of Harmonics from DC Arc Furnace on 115kV Capacitor
Published by Phongphat Waraphok, Provincial Electricity Authority (PEA), Thailand.
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”
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
Published by Dranetz – BMI Case Studies 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.Continue reading “Harmonic Distortion of Current”
Harmonics Generated from the Source
Published by Dranetz – BMI Case Studies 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 aContinue reading “Harmonics Generated from the Source”