Published by Bruce Lonie, President, POWERetc Corporation, 3350 Scott Blvd., Bldg 55 Unit 1 Santa Clara, CA 95054 USA, (408) 540-3199 | m (408) 666-6500, Email: BruceL@POWERetc.com | Website: http://www.POWERetc.com 1.Do the simple things first. 2.There is always more than one problem. There are always more than one or two problems, keep looking and youContinue reading “Bruce’s Laws of PQ Problem Solving”
Category Archives: Power Quality
Origins of EOS in Manufacturing Environment and Its Classification
Published by Vladimir Kraz, 3M Company, 3601-A Caldwell Dr., Soquel, CA 95073, Tel. 408-202-9454 FAX 206-350-7458 Email: vladimir.kraz@gmail.com Abstract EOS (Electric Overstress) is a serious threat to defect-free manufacturing, long-term product reliability and interruption-free manufacturing process. This paper summarizes the sources of EOS, its impact on production and suggests classification of EOS occurrences into modelsContinue reading “Origins of EOS in Manufacturing Environment and Its Classification”
Electrical Over-Stress (EOS)
Published by Cypress Perform, Cypress Semiconductor Corporation, website: cypress.com Electrical Over-Stress (EOS) Electrical Over-Stress (EOS) is a term/acronym used to describe the thermal damage that may occur when an electronic device is subjected to a current or voltage that is beyond the specification limits of the device.
Microgrid Power Management and Control – Concept and Present Status
Published by Arindam Ghosh, Curtin University, Perth, DLP Thailand, Sept. 2018.
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”
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”
Power Quality Standards
Published by Mark McGranaghan, Electrotek Concepts, Inc. Electrical Contractor Magazine, Power Quality for the Electrical Contractor Course Introduction Power quality has always been important. However, for many years the equation defining power quality was very simple: POWER QUALITY = RELIABILITY Customer loads were linear in nature. When a sinusoidal voltage was supplied to them, theyContinue reading “Power Quality Standards”
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