Tag Archives: Harmonics

Do different types of non-linear loads generate different harmonics?

Published by Mirus International Inc., [2010-01-08] MIRUS-FAQ001-B2, FAQ’s Harmonic Mitigating Transformers, 31 Sun Pac Blvd., Brampton, Ontario, Canada. L6S 5P6. By far the majority of today’s non-linear loads are rectifiers with DC smoothing capacitors. These rectifiers typically come in 3 types – (i) single phase, line-to-neutral, (ii) single phase, phase-to-phase and (iii) three-phase. Single-phase line-to-neutralContinue reading “Do different types of non-linear loads generate different harmonics?”

Rules, Indices and Approach for Assessment and Improvement of Power Quality

Published by Antonio Ardito, Stefano Malgarotti, Angelo Schiappacasse,1 1 This paper was developed within the activity Ricerca di Sistema DM 26/01/2000. Authors are with CESI spa, via Rubattino 54, 20134 Milano (MI), Italy, (e-mail: malgarotti@cesi.it, tel. +39-02 2125-5517) ABSTRACT Power Quality is of concern in both open market and in vertically integrated environment, since theContinue reading “Rules, Indices and Approach for Assessment and Improvement of Power Quality”

Passive Harmonic Filter Design

Published by Kerim Ozer, Senior Electrical Engineer, Enspec Power Ltd. Email: kerim.ozer@enspecpower.com A technical review of how passive harmonic filter types have an impact on network impedance profiles in terms of damping. A review of a harmonic filter design study was carried out for an industrial Plant, which included a total capacity of >100MW smelters,Continue reading “Passive Harmonic Filter Design”

Survey on Voltage Improvement

Published by Raghawendra Sharan Mishra, Student, Department of Instrumentation & Control, Maharana Pratap College of Technology, Gwalior, India. Mr. Prasant Kumar, Assistant Professor, Department of Electrical Engineering, Maharana Pratap College of Technology, Gwalior, India. IJSRD – International Journal for Scientific Research & Development | Vol. 5, Issue 09, 2017 | ISSN (online): 2321-0613 Abstract PowerContinue reading “Survey on Voltage Improvement”

Effects of Voltage Sags, Swell and other Disturbances on Electrical Equipment and their Economic Implications

Published by Norbert EDOMAH, Industrial Co-ordinator, Institute for Industrial Technology (IIT), Lagos, Nigeria. E-mail: ncedomah@yahoo.co.uk Published in CIRED 20th International Conference on Electricity Distribution, Prague, 8 -11 June 2009. ABSTRACT Poor power quality has come to stay in most parts of the world. In most part of Africa, especially in Nigeria, it is almost normalContinue reading “Effects of Voltage Sags, Swell and other Disturbances on Electrical Equipment and their Economic Implications”

Power Quality Issues, Problems, Standards & Their Effects in Industry with Corrective Means

Published by S.Khalid, Email: saifonline@rediffmail.com, & Dr. Bharti Dwivedi, Email: bharti_dwivedi@yahoo.com, Department of Electrical Engineering, I.E.T., Lucknow, India. International Journal of Advances in Engineering & Technology, May 2011. ©IJAET ISSN: 2231-1963 ABSTRACT Latest innovative ideas to make the life easier using the technology depends upon the application of power electronics in turn about power quality.Continue reading “Power Quality Issues, Problems, Standards & Their Effects in Industry with Corrective Means”

Summary of U.S. Distribution System Power Quality Levels

Published by D. D. Sabin, Email: dsabin@electrotek.com D. L. Brooks, Email: dbrooks@electrotek.com Electrotek Concepts, Inc., 409 North Cedar Bluff Road, Suite 500, Knoxville, Tennessee 37923-3605, United States A. Sundaram, Email: asundara@epri.com S. Bhatt, Email: sbhatt@epri.com Electric Power Research Institute, 3412 Hillview Avenue, Palo Alto, California 94304-1395, United States Abstract The Distribution System Power Quality ProjectContinue reading “Summary of U.S. Distribution System Power Quality Levels”

Harmonics & Waveform Measurements Low Pass Filter & Sine Wave Filter for a 460V 100HP AC Motor with VFD

Published by Dranetz™ Technologies, Inc., Case Study, Website: dranetz.com. This case study was submitted by Ing. Leopoldo Martínez Basulto, Dranetz México. INTRODUCTION Harmonics are an important PQ issue today. Variable Frequency Drives (VFD), Uninterruptible Power Systems (UPS), computers, LED lighting, electronic ballasts, etc. are widely used in all kinds of facilities. It is well knownContinue reading “Harmonics & Waveform Measurements Low Pass Filter & Sine Wave Filter for a 460V 100HP AC Motor with VFD”

Key Changes and Differences between the New IEEE 519- 2014 Standard and IEEE 519-1992

Written by Ian Wallace, Chief Engineer, Power Quality Solutions, TCI® Technical Paper. Introduction IEEE Std 519-2014 is a newly published revision to the IEEE Recommended Practice and Requirements for Harmonic Control in Electric Power Systems. It supersedes the IEEE Std 519-1992 revision. The overarching goal of the 2014 revision is the same as the 1992Continue reading “Key Changes and Differences between the New IEEE 519- 2014 Standard and IEEE 519-1992”