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. Some manufacturers are promoting the use of 3rd harmonic (180 Hz) blocking filters for the treatment of high neutral currents caused by non-linear loads such as personal computers. These devices are parallel L-C filters tunedContinue reading “Can neutral currents, such as the 3rd harmonic, be reduced by the use of 3rd harmonic blocking filters?”
Yearly Archives: 2022
Visualizing the Power Consumption of Bitcoin Mining
Published by Marcus Lu, Visual Capitalist, Energy Archive, April 20, 2021Website: visualcapitalist.com Visualizing the Power Consumption of Bitcoin Mining Cryptocurrencies have been some of the most talked-about assets in recent months, with bitcoin and ether prices reaching record highs. These gains were driven by a flurry of announcements, including increased adoption by businesses and institutions.Continue reading “Visualizing the Power Consumption of Bitcoin Mining”
What is a DSO?
Published by European Distribution System Operators (E.DSO), Why smart grids?Website: edsoforsmartgrids.eu Distribution system operators (DSOs) are the operating managers (and sometimes owners) of energy distribution networks, operating at low, medium and, in some member states, high voltage levels (LV, MV). Transmission grids transport large quantities of high (and extreme high) voltage (HV, EHV) electricity across vastContinue reading “What is a DSO?”
General Reference – Wiring and Grounding
Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference – Wiring and Grounding, Document ID: PQS0609, Date: July 1, 2006. Abstract: Wiring and grounding problems are responsible for many power quality variations within customer facilities. Some electric utility engineers have estimated that 80% of all the power quality problems reported by customers are found toContinue reading “General Reference – Wiring and Grounding”
Power Quality and Electrical Arc Furnaces
Published by Horia Andrei1, Costin Cepisca2 and Sorin Grigorescu21Valahia University of Targoviste, 2Politehnica University of Bucharest, Romania 1.Introduction The chapter covers general issues related to power quality in Electric Arc Furnaces. The use of electric arc furnaces (EAF) for steelmaking has grown dramatically in the last decade. Of the steel made today 36% is producedContinue reading “Power Quality and Electrical Arc Furnaces”
General Reference Common Power Quality Problems and Solutions
Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference Common Power Quality Problems and Solutions, Document ID: PQS0315, Date: July 18, 2003. Abstract: Power quality is a frequently used term that means different things to different people. Common power quality problems include all of the issues that arise from the incompatibility between a utility’s powerContinue reading “General Reference Common Power Quality Problems and Solutions”
Am I not safe from harmonics if I use K-Rated transformers and oversized neutrals?
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. K-Rated transformers made their appearance several years ago as a means of preventing transformers from failing when subjected to heavy non-linear loading. They are essentially ‘beefed up’ transformers with extra steel in their cores andContinue reading “Am I not safe from harmonics if I use K-Rated transformers and oversized neutrals?”
Why is Good Power Quality Necessary?
Published by Merus Power Plc., October 13, 2016 Power quality is commonly defined as the power grid’s ability to supply a clean and stable power flow as a constantly available power supply. The power flow should have a pure sinusoidal wave form and it should remain within specified voltage and frequency tolerances. Why is goodContinue reading “Why is Good Power Quality Necessary?”
General Reference – Power Quality Glossary
Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference – Power Quality Glossary, Document ID: PQS0305, Date: January 27, 2003. Abstract: The document provides a glossary of terms related to power quality analysis and measurements. POWER QUALITY GLOSSARY Glossary Active Filter:A power electronics-based device configured with controls to provide cancellation of harmonic current components createdContinue reading “General Reference – Power Quality Glossary”
Lifetime and Reliability
Published by U.S. Department of Energy Office of Energy Efficiency & Renewable Energy, Article: Building Technologies Program SOLID-STATE LIGHTING TECHNOLOGY FACT SHEET, Website: ssl.energy.gov Lifetime and Reliability Long life has been billed as a key advantage of LEDs, but understanding and communicating how LED products fail and how long they last can be challenging. WhileContinue reading “Lifetime and Reliability”
Power Quality Blog 