Author Archives: PQBlog

PQ Investigation at a Battery Facility

Published by Electrotek Concepts, Inc., PQSoft Case Study: PQ Investigation at a Battery Facility, Document ID: PQS0402, Date: March 30, 2004. Abstract: This case study presents the results of a power quality investigation at a battery manufacturing facility. The facility had been experiencing a high rate of motor failures and was experiencing problems with its computerContinue reading “PQ Investigation at a Battery Facility”

ITI (CBEMA) Curve Application Note

Published by Information Technology Industry Council (ITI), 1250 Eye Street NW Suite 200, Washington DC 20005, 202-737-8888, http://www.itic.org The ITI (CBEMA) Curve, included within this Application Note, is published by Technical Committee 3 (TC3) of the Information Technology Industry Council (ITI, formerly known as the Computer & Business Equipment Manufacturers Association). It is available atContinue reading “ITI (CBEMA) Curve Application Note”

Flickering Lights

Published by Electrotek Concepts, Inc., PQSoft Case Study: Flickering Lights Wiring and Grounding Case Study, Document ID: PQS0403, March 30, 2004. Abstract: This case study concerns a residential electrical system. The homeowners were experiencing light flicker when loads were energized and de-energized in their home. INTRODUCTION Residential electric systems are served from single-phase transformers employing aContinue reading “Flickering Lights”

Power Quality Standards, Problems and their Solutions

Published by Vedant S. Samudre, Department of electrical, electronics & power, Jawaharlal, Nehru Engineering College, Aurangabad, Maharashtra, IndiaPublished in International Journal of Engineering Sciences & Research Technology (IJESRT)Website: http://www.ijesrt.comSamudre* et al., 5(12): December, 2016DOI: 10.5281/zenodo.192584 ABSTRACT Power quality is one of the major concerns and emerging issues in the present era. With increasing quantities ofContinue reading “Power Quality Standards, Problems and their Solutions”

General Reference – Performing Power Quality Audits

Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference – Performing Power Quality Audits, Document ID: PQS0306, Date: February 4, 2003. Abstract: Power quality investigations often require monitoring to identify the exact problem and then to verify the solutions that are implemented. Before embarking on extensive monitoring programs, it is important to develop an understandingContinue reading “General Reference – Performing Power Quality Audits”

What Is Electrical Grounding – Top 10 Questions and Answers

Published by Pablo Diaz, P.Eng, Grounding Systems Technologies (GST), The Electricity Forum, Power Quality and Ground Articles. What is Electrical Grounding? Electrical Grounding is defined as the process of transferring the immediate discharge of electricity directly to the Earth with the help of a low-resistance wire. Electrical grounding was invented as a safety system to help prevent people andContinue reading “What Is Electrical Grounding – Top 10 Questions and Answers”

A Power Quality and Load Analysis of a Cryptocurrency Mine

Published by Keaton A. Wheeler, Anthony W. Bowers, Charlie H. Wong, Jonathan Y. Palmer and Xue Wang, Primary Engineering and Construction, Saskatoon/Kelowna, Canada{kwheeler, abowers, cwong, jpalmer & swang}@primaryeng.comPublished in: 2018 IEEE Electrical Power and Energy Conference (EPEC)Date of Conference: 10-11 Oct. 2018DOI: 10.1109/EPEC.2018.8598358 Abstract— This paper conducts a load and power quality analysis on aContinue reading “A Power Quality and Load Analysis of a Cryptocurrency Mine”

General Reference – Power Quality Assessment Procedure

Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference – Power Quality Assessment Procedure, Document ID: PQS0608, Date: July 1, 2006. 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 power andContinue reading “General Reference – Power Quality Assessment Procedure”

Can neutral currents, such as the 3rd harmonic, be reduced by the use of 3rd harmonic blocking filters?

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?”