Customer Data Analysis

Published by Electrotek Concepts, Inc., PQSoft Case Study: Customer Data Analysis, Document ID: PQS1102, Date: March 15, 2011. Abstract: Monitoring is often used to characterize power quality levels at various locations on utility and customer power systems. Field measurements provide a convenient means to characterize power quality problems. This case study summarizes a commercial customer powerContinue reading “Customer Data Analysis”

Transformer Energizing and Dynamic Overvoltages

Published by Electrotek Concepts, Inc., PQSoft Case Study: Transformer Energizing and Dynamic Overvoltages, Document ID: PQS0709, Date: October 15, 2007. Abstract: Energizing power transformers results in inrush currents that are rich in harmonic components. The inrush current interacts with the system impedance vs. frequency characteristics to create a voltage waveform that can have significant harmonic componentsContinue reading “Transformer Energizing and Dynamic Overvoltages”

Harmonics / K-factor Ratings

Published by Siemens Canada, Siemens Limited Power Product Catalogue, Canadian Edition 2019. Section 18 – Technical, Contents: Harmonics / K-factor Ratings (18-16, 18-17) Non-Linear Loads When a sinusoidal voltage is applied to a linear load, the resultant current waveform takes on the shape of a sine wave as well. Typical linear loads are resistive heatingContinue reading “Harmonics / K-factor Ratings”

Monitoring and Analysis of Power Quality Issues in Distribution Network

– A Case Study Published by V. S. Jape#1, D. S. Bankar*2, Tejaswini Sarwade#3Electrical Engineering1, Electrical Engineering2, Electrical Engineering3, BVDU Pune1, BVDU Pune2, SPPU , , Abstract — Tracking of system overall performance in phrases of Power Quality disturbances and its ill effects on distribution network is growing attention of application towardsContinue reading “Monitoring and Analysis of Power Quality Issues in Distribution Network”

Distribution Feeder Energizing

Published by Electrotek Concepts, Inc., PQSoft Case Study: Distribution Feeder Energizing, Document ID: PQS0711, Date: October 15, 2007. Abstract: The energization transients for distribution feeders are generally a combination of line energizing, transformer inrush, and load inrush. Line energizing transients typically decay to negligible values in about one-half cycle and they generally do not pose significantContinue reading “Distribution Feeder Energizing”

Interharmonics: Theory and Modeling

IEEE Task Force on Harmonics Modeling and Simulation Published by A. Testa, M. F. Akram, R. Burch, G. Carpinelli, G. Chang, V. Dinavahi, C. Hatziadoniu, W. M. Grady, E. Gunther, M. Halpin, P. Lehn, Y. Liu, R. Langella, M. Lowenstein, A. Medina, T. Ortmeyer, S. Ranade, P. Ribeiro, N. Watson, J. Wikston, and W. XuContinue reading “Interharmonics: Theory and Modeling”

Electric Power Quality and Ship’s Safety

Published by J. Mindykowski2, E. Szmit1, T. Tarasiuk21 Polish Register of Shipping, Electrical and Automation Department2 Department of Marine Electrical Power Engineering of Gdynia Maritime University 1.Introduction The issue of electric power quality onboard ships has seemed of utmost importance, in particular nowadays when a great progress in implementation of electric drives for ship’s thrusters,Continue reading “Electric Power Quality and Ship’s Safety”

Harmonic Issues Related to Power Factor Correction

Published by Electrotek Concepts, Inc., PQSoft Case Study: Harmonic Issues Related to Power Factor Correction, Document ID: PQS0604, Date: April 1, 2006. Abstract: Power factor correction is an important facet of power quality. Capacitors may be installed on customer systems to minimize charges for poor power factor on their electric bill. These installations may create problemsContinue reading “Harmonic Issues Related to Power Factor Correction”

Power Factor Correction and Harmonic Control for dc Drive Loads

Published by Electrotek Concepts, Inc., PQSoft Case Study: Power Factor Correction and Harmonic Control for dc Drive Loads, Document ID: PQS0410, Date: December 31, 2004. Abstract: This case history describes the design of power factor correction and harmonic control equipment for loads at a plastic film manufacturing plant. Measurements were performed to characterize the harmonic generationContinue reading “Power Factor Correction and Harmonic Control for dc Drive Loads”