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. A load is considered non-linear if its impedance changes with the applied voltage. The changing impedance means that the current drawn by the non-linear load will not be sinusoidal even when it is connected toContinue reading “What are non-linear loads and why are they a concern today?”
Author Archives: PQBlog
Power Quality and Harmonics
Published by Wayne Walcott, MTE Application engineering Manager, August , 2015. website: mtecorp.com
Understanding Power Quality Standards
Published by Dr.Ir.Mohamed Fuad Faisal, Asset Management Department, Distribution Division TNB
What is Short Circuit Analysis, and Why is it Done?
Published by Carelabs (Carelabz), Website: carelabz.com A Short circuit analysis is used to determine the magnitude of short circuit current, the system is capable of producing, and compares that magnitude with the interrupting rating of the overcurrent protective devices (OCPD). Since the interrupting ratings are based by the standards, the methods used in conducting a short circuitContinue reading “What is Short Circuit Analysis, and Why is it Done?”
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”
What You Need To Know About Arc Flash Hazard Study And Analysis
Published by Carelabs (Carelabz) Arc flash study came into picture ten years ago when IEEE 1584, known as “IEEE Guide for Performing Arc Flash Hazard Calculations,” was first introduced. This landmark document defines equations and methods that have become key components of the arc flash study. In order to identify the specific arc flash hazardContinue reading “What You Need To Know About Arc Flash Hazard Study And Analysis”
How PQView Was Born
With the annual PQView User’s Group Meeting only 3 weeks away we thought that we would share some of PQView’s rich history (below). The PQView User’s Group Meeting is on October 19 & 20, 2021. Space is still available. Click here for more details and to register. In 1989, Electrotek was awarded a $5M projectContinue reading “How PQView Was Born”
Strategies for Investigating Flicker
Published by Wayne LaFleur, Senior Engineer, Power Monitors, Inc. Email: wlafleur@powermonitors.com, Website: powermonitors.com, (800) 296-4120, February 2014. White Paper. ABSTRACT Investigating f licker issues with PMI recorders can be straightforward if the right data is collected, and analyzed with ProVision. By enabling and examining Pst and IFL flicker data, in addition to RMS voltage andContinue reading “Strategies for Investigating Flicker”
What You Need To Know About Arc Flash
Published by Carelabs (Carelabz) Arc Flash is an energy release that takes place when electricity flows through the air and two live conductors causing short circuit. In a residential setting, arc flashes usually produce little more than a brief flash of light before extinguishing themselves harmlessly. In commercial or industrial setting, voltages are high, soContinue reading “What You Need To Know About Arc Flash”
Energy Platform EP1 Trend Data Time Interval
Published by Terry Chandler, Director of Engineering, Power Quality (Thailand) Co., Ltd. Emails: terryc@powerquality.co.th,TChandler@Dranetz.com The EP1 is Energy Platform has a slightly different time interval for the trended data from the other Dranetz portable products. The PX/PG/PV have a minimum intervals of 1 second, 10 seconds and 1 minute. Note: There are some limitations onContinue reading “Energy Platform EP1 Trend Data Time Interval”
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