Published by Electrotek Concepts, Inc., PQSoft Case Study: Transformer Derating, Document ID: PQS0324, Date: October 10, 2003. Abstract: A principal effect of harmonic distortion is to increase losses and heating in almost every component in the electric power system. While contributing almost no useful work, harmonic components of voltage and current increase the RMS value ofContinue reading “Transformer Derating”
Tag Archives: Harmonics
Clean Power for Office Towers
Published by Raghavan Venkatesh, EE Power – Technical Articles: Clean Power for Office Towers, April 12, 2018. This article features EPCOS AG product PQSine S series designed for 3-phase grids with or without neutral conductors and enables harmonics to be filtered. The complex power networks of skyscrapers and other modern buildings must serve a wide rangeContinue reading “Clean Power for Office Towers”
PQ Investigation for SW County School District No. 1 Harmonic Considerations Associated with PC Loads
Published by Electrotek Concepts, Inc., PQSoft Case Study: PQ Investigation for SW County School District No. 1, Document ID: PQS0323, Date: October 10, 2003. Abstract: The County School District has a concern for increasing computer loads at the local High School. There are approximately 300 computers currently in use at the school and plans are toContinue reading “PQ Investigation for SW County School District No. 1 Harmonic Considerations Associated with PC Loads”
Electric Utility Harmonic Study Medium Voltage Filter Design
Published by Electrotek Concepts, Inc., PQSoft Case Study: Electric Utility Harmonic Study Medium Voltage Filter Design, Document ID: PQS0407, Date: September 30, 2004. Abstract: This particular utility was experiencing voltage distortion levels throughout their distribution network that were exceeding IEEE Std. 519 limits. One customer, a plastic extrusion plant, was experiencing blown fuses in their switchedContinue reading “Electric Utility Harmonic Study Medium Voltage Filter Design”
Low Voltage Harmonic Filter Design
Published by Electrotek Concepts, Inc., PQSoft Case Study: Low Voltage Harmonic Filter Design, Document ID: PQS0304, Date: January 10, 2003. Abstract: The industrial harmonic problem can be solved using a comprehensive approach including site surveys, harmonic measurements, and computer simulations. When mitigation of harmonic distortion is required, one of the options is to apply a filterContinue reading “Low Voltage Harmonic Filter Design”
Substation Resonance and Harmonic Filter Application
Published by Electrotek Concepts, Inc., PQSoft Case Study: Substation Resonance and Harmonic Filter Application, Document ID: PQS0702, Date: July 26 1, 2007. Abstract: A utility operates a 16.2 MVAr capacitor bank on a 24kV substation bus that supplies various customers that have significant amounts of nonlinear loads. The utility is investigating the possible conversion of theContinue reading “Substation Resonance and Harmonic Filter Application”
Industrial Facility IEEE Std. 519 Compliance Evaluation
Published by Electrotek Concepts, Inc., PQSoft Case Study: Industrial Facility IEEE Std. 519 Compliance Evaluation, Document ID: PQS1015, Date: October 15, 2010. Abstract: This case study presents an industrial facility IEEE Std. 519 harmonic compliance evaluation. The analysis included frequency response and harmonic distortion simulations for a substation and a single industrial customer with a numberContinue reading “Industrial Facility IEEE Std. 519 Compliance Evaluation”
Regulation of Current Harmonics in Grid with Dead-beat Controlled Shunt Active Power Filter
Published by Parandhaman BALAMURUGAN1, Natarajan SENTHIL KUMAR1,Vellore Institute of Technology (1),Chennai, Tamilnadu, India Abstract. Hardware implementation of Shunt Active Power Filter (SAPF) to regulate harmonics in the grid current is presented in this work. Dead-beat controller is employed to regulate the harmonics injected by SAPF using Spartan-6 FPGA processor. The effectiveness of the control strategyContinue reading “Regulation of Current Harmonics in Grid with Dead-beat Controlled Shunt Active Power Filter”
Methods for Determining Power Losses in Cable Lines with Non-Linear Load
Published by Łukasz TOPOLSKI, Jurij WARECKI, Zbigniew HANZELKA, AGH University of Science and Technology Abstract. Harmonic currents in power cables cause additional power losses associated with phenomena that increase the temperature of the cable insulation and make its service life shorter. For these reasons, it is important to choose methods for determining active power losses,Continue reading “Methods for Determining Power Losses in Cable Lines with Non-Linear Load”
Harmonics in Electrical Power Systems and how to remove them by using filters in ETAP
Published by Zia Hameed1, Muhammad Rafay Khan Sial2, Adnan Yousaf3, Muhammad Usman Hashmi,Faculty of Engineering and Technology, Superior University, 17-km off Raiwind Road Lahore PakistanEmails: zia.hameed@superior.edu.pk, rafay.khan@superior.edu.pk, adnan.yousaf@superior.edu.pk Abstract—Power System Harmonics is a real point of concern for Electrical Engineers. In power systems, non-linear loads are permanently connected, unlike transients and other distortions are produced.Continue reading “Harmonics in Electrical Power Systems and how to remove them by using filters in ETAP”
Power Quality Blog 