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”

Case Studies of Harmonic Problems, Analysis, & Solutions on Transmission Systems

Published by David Mueller, Manager, Power System Studies, Electrotek Concepts Inc., Knoxville, Tennessee, USA Email: dmueller@electrotek.com Published in: 2007 9th International Conference on Electrical Power Quality and Utilisation Abstract Transmission systems around the world are increasingly applying capacitor banks on their transmission systems, primarily to support transmission systems and avoid voltage collapse issues leading toContinue reading “Case Studies of Harmonic Problems, Analysis, & Solutions on Transmission Systems”

The Importance of Good Power Quality

Published by Dr. Kurt Schipman & Dr. François Delincé , ABB Power Quality Products, Belgium ABSTRACT This paper explains the problems that are due to poor Power Quality in electrical systems and shows their possible financial consequences. Power Quality is characterized by parameters that express harmonic pollution, reactive power, and load unbalance. The best possibleContinue reading “The Importance of Good Power Quality”

Smart Capacitor

Published by Wendy Wang, Jiangsu Modern Electric Technology Co., Ltd. The first developer of smart capacitor in China; Nantong, Jiangsu, China. Introduction Smart capacitor integrates such advanced technologies as modern measure-control, power electronics, network communication, automation control, power capacitor and others. It changes the outdated controller technology of traditional reactive power compensation device and theContinue reading “Smart Capacitor”