Published by 1. Waldemar ZIOMEK, 2. Krishnamurthy VIJAYAN, PTI Transformers LP, Winnipeg, MB, Canada ORCID: 1. 0000-0002-1216-6513 Abstract. The renewable energy collector transformer (RCT) in a solar station, or a wind farm, transforms the voltage from the collector system to the transmission level voltages. As the primary goal is stepping up the voltage, the RCTContinue reading “Renewable Energy Collector Transformers”
Tag Archives: K-Factor
Generation of High-Voltage Solitons in a Non-Linear Transmission Line
Published by 1. Andrzej FARYŃSKI1, 2. Zbigniew ZIÓŁKOWSKI1, 3. Przemysław SUL2, Air Force Institute of Technology (AFIT) (1), Warsaw University of Technology (2)ORCID: 1. 000-0008-1232-2747; 2. 000-0002-7713-0271; 3. 0000-0002-4327-9334 Abstract. The article describes research, the main aim of which was to present the method of generating high-voltage impulses – solitons using a non-linear NLTL transmissionContinue reading “Generation of High-Voltage Solitons in a Non-Linear Transmission Line”
Container Harbour in Gothenburg
Published by Jonny Carlsson, Unipower AB, Case Study: Container Harbour in Gothenburg, Date: November 8th, 2010. http://www.unipower.se The most important problem was the sags that were caused by the container cranes. The cranes created a lot of high reactive power during the start of the lift procedure. The high currents caused high demand on the transformerContinue reading “Container Harbour in Gothenburg”
Differences between IEC and IEEE Standards of Transformers
Published by Indi. Wang Focus on the transformers | Electrical transformer business developer | With IEC authentication CE ISO9001:2000 Hefei, Anhui, China When it comes to adding or replacing transformers in oil and gas plants, operators need to consider various factors to optimize their operations. In this article, we will explore the differences between theContinue reading “Differences between IEC and IEEE Standards of Transformers”
An Introduction to Transformer Harmonic Current Derating Metrics
Published by Richard Lam, CHK Power Quality Pty Ltd. Website: http://www.chkpowerquality.com.au Abstract. Transformer harmonic current derating metrics; Harmonic Loss Factor, K-Factor, and Factor K are introduced, and used to calculate derating factors for dry and oil-filled type transformers. Introduction The introduction of Switched Mode Power Supplies (SMPS) in office equipment and LED lighting, Variable Frequency/SpeedContinue reading “An Introduction to Transformer Harmonic Current Derating Metrics”
Effect of Harmonics on Power Transformers: A Practical Demonstration and Analysis
Published by Munther Naif Thiab1, nmunther2@gmail.com, Kaleid waleed abid2, kaleidwaleedabid@gmail.com, Muhideen Abbas Hasan3, muhyabass@gmail.com,1, College of Engineering, University of Anbar, Iraq.2, Renewable Energy Research Center / University of Anbar. Iraq.3, Al-Dour Technical Institute, Northern Technical University, Iraq. Abstract: Voltage and current harmonics arise in the presence of nonlinear loads in the major supply. Moreover, theContinue reading “Effect of Harmonics on Power Transformers: A Practical Demonstration and Analysis”
Transformer Derating
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”
Commercial Facility Harmonic Evaluation
Published by Electrotek Concepts, Inc., PQSoft Case Study: Commercial Facility Harmonic Evaluation, Document ID: PQS1005, Date: March 15, 2010. Abstract: Utility power system harmonic problems can often be solved using a comprehensive approach including site surveys, harmonic measurements, and computer simulations. This case study presents the results for a commercial facility harmonic evaluation. The simulations wereContinue reading “Commercial Facility Harmonic Evaluation”
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”
K-factor & Transformers
Published by Pacific Crest Transformers, 300 West Antelope Road – Medford, Oregon 97503 Tel : (541) 826 – 2113 Fax : (541) 826 – 8847. March, 2015. Transformers serving heavy nonlinear loads are subject to increased winding temperatures due to the harmonic currents generated by those loads. This overheating can result in a shortened serviceContinue reading “K-factor & Transformers”
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