A Methodological Proposal for Monitoring, Analyzing and Estimating Power Quality Indices: the case of Bogotá-Colombia

Published by L. E. Gallego, Student Member IEEE, H. Torres, Member IEEE, F.A. Pavas, Student Member IEEE, D.F. Urrutia, Student Member IEEE, G. A. Cajamarca, and D. Rondón, Student Member IEEE. Abstract—The Estimation of Power Quality (PQ) indices has a vital importance on the development of national PQ standards not only because provides truthful informationContinue reading “A Methodological Proposal for Monitoring, Analyzing and Estimating Power Quality Indices: the case of Bogotá-Colombia”

Municipal Elevator Study – Improving Elevator Performance

Published by Electrotek Concepts, Inc., PQSoft Case Study: Municipal Elevator Study – Improving Elevator Performance, Document ID: PQS0507, Date: September 30, 2005. Abstract: In the past, system-wide voltage reductions and other voltage anomalies have caused unreliable elevator operation for some Municipal Utility customers. Municipal Utility’s Customer Service Department received many complaints from customers with elevators despiteContinue reading “Municipal Elevator Study – Improving Elevator Performance”

Analysis of Power Quality Factors: A Case Study of Windhoek, Namibia

Published by Aldrin Mubiana, Michael Mutingi, Member, IAENG, Gideon Gope, Charles Mbohwa. Conference: Proceedings of the World Congress on Engineering and Computer Science 2016 Vol II WCECS 2016, October 19-21, 2016, San Francisco, USA. Abstract—Power quality (PQ) is concerned with control of harmonic distortions, voltage variations, voltage reductions, power interruptions and voltage surges. Enterprises devicesContinue reading “Analysis of Power Quality Factors: A Case Study of Windhoek, Namibia”

Voltage Notching and Distribution Systems II – Large DC Drive Examples

Published by Electrotek Concepts, Inc., PQSoft Case Study: Voltage Notching and Distribution Systems II – Large DC Drive Examples, Document ID: PQS0506, Date: June 30, 2005. Abstract: This case study describes voltage notching associated with large DC drives. The notching is a normal characteristic of a phase-controlled rectifier but this paper illustrates problems that can occurContinue reading “Voltage Notching and Distribution Systems II – Large DC Drive Examples”

Voltage Notching and Distribution Systems – Large Induction Motor Drive

Published by Electrotek Concepts, Inc., PQSoft Case Study: Voltage Notching and Distribution Systems – Large Induction Motor Drive, Document ID: PQS0320, Date: July 18, 2003. Abstract: This case describes voltage notching associated with large adjustable speed drives. The notching is a normal characteristic of a phase-controlled rectifier but this paper illustrates problems that can occur onContinue reading “Voltage Notching and Distribution Systems – Large Induction Motor Drive”

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”

A Case Study on EMI Noise adversely affecting the performance & reliability of Robotics & Automation

Published by J A Simon, Chief Executive, Waveforms, Email: waveformspower@gmail.com, Website: http://www.waveforms.co.in Automation improves productivity but it can also derail the automation process due to the issue of harmonics & Emi (high-frequency noise). This case study is about how to improve the reliability, electrical efficiency, & power quality of robotics & automation. This real-time caseContinue reading “A Case Study on EMI Noise adversely affecting the performance & reliability of Robotics & Automation”

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”

Encore Series UPS Monitoring

Application Note WHERE EVERY MILLISECOND COUNTS! The digital economy has redefined business operations and is setting new standards for electric power reliability and quality. Downtime – undesirable for any business – is catastrophic for Data Centers and other high reliability facilities where even the smallest power quality issue can cause equipment failure, data corruption, andContinue reading “Encore Series UPS Monitoring”