Published by Alex Roderick, EE Power – Technical Articles: An Introduction to Harmonics, May 06, 2021. This article will provide a basic introduction of harmonics in power engineering. A harmonic is a current or voltage component at a frequency that is an integer (whole number) multiple (2nd, 3rd, 4th, etc.) of the fundamental frequency. For example, whenContinue reading “An Introduction to Harmonics”
Tag Archives: Power Quality
Reducing Energy Consumption in Production Processes and Parameters Describing the Quality of Electrical Energy
Published by Andrzej LANGE1, Marian PASKO2, University of Warmia and Mazury, Department of Electrical, Power, Electronic and Control Engineering (1), Silesian University of Technology, Institute of Electrical Engineering and Computer Science (2) Abstract. This article presents the consequences of exchanging older metal cutting machines for new ones in terms of electrical energy consumption and qualityContinue reading “Reducing Energy Consumption in Production Processes and Parameters Describing the Quality of Electrical Energy”
The Difference Between Class A & Class S
Published by GMC-Instruments Power Quality: What Does Class A Mean? Power quality monitoring doesn’t often become an issue until incidents such as system malfunctions, equipment failures, process interruptions, data loss, IT disruptions or even power failure have occurred. As a rule, incidents of this sort are very time-consuming because they cause can’t always pinpointed rightContinue reading “The Difference Between Class A & Class S”
Concrete Facility Harmonic Evaluation ASD Drive Trips and Transformer Fires
Published by Electrotek Concepts, Inc., PQSoft Case Study: Concrete Facility Harmonic Evaluation ASD Drive Trips and Transformer Fires, Document ID: PQS0503, Date: March 31, 2005. Abstract: A Kiln ID fan drive (12 pulse rectifier) powers a 3000 HP medium voltage (4kV) motor. The associated harmonic filter periodically becomes overloaded and trips the corresponding 4kV breaker. TheContinue reading “Concrete Facility Harmonic Evaluation ASD Drive Trips and Transformer Fires”
Measurement of Power Characteristics in Public Lighting Networks
Published by Peter JANIGA, Dionýz GAŠPAROVSKÝ, Slovak University of Technology in Bratislava Abstract. The aim of this paper is to share the results of measurements in public lighting networks of current status in terms of electrical characteristics. Based on the measurements it is possible to create an image of the actual power proportions in publicContinue reading “Measurement of Power Characteristics in Public Lighting Networks”
Analysis of Measured Data at the Point of Complaints to Power Quality
Published by Petr ROZEHNAL, Jan UNGER, Petr KREJCI, VŠB-Technical University of Ostrava Abstract. Electricity is one of the most important energy that uses both in the home and in industry. For good and seamless use of electricity are important its quality. Deteriorating power quality is increasingly becoming an important problem for the industry and serviceContinue reading “Analysis of Measured Data at the Point of Complaints to Power Quality”
Some Results of Research into Harmonics in the High Voltage Networks with Distributed Nonlinear Loads
Published by Lidiia KOVERNIKOVA, Energy Systems Institute of the Siberian Branch of the Russian Academy of Sciences Abstract. The paper presents the results of the analysis of harmonic parameters that were measured at the nodes of connecting railway substations to the feeding network. Traction load is nonlinear, unbalanced and stochastic. The 3-rd and 5-th harmonicsContinue reading “Some Results of Research into Harmonics in the High Voltage Networks with Distributed Nonlinear Loads”
Harmonic Measurement Data Evaluation
Published by Electrotek Concepts, Inc., PQSoft Case Study: Harmonic Measurement Data Evaluation, Document ID: PQS1001, 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 a harmonic data analysis for a utility 12.47kV substation monitoring locationContinue reading “Harmonic Measurement Data Evaluation”
Harmonic Current Cancellation Evaluation
Published by Electrotek Concepts, Inc., PQSoft Case Study: Harmonic Current Cancellation Evaluation, Document ID: PQS1002, 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 customer step-down transformer harmonic current cancellation evaluation.Continue reading “Harmonic Current Cancellation Evaluation”
General Reference – Modeling for Harmonic Analysis
Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference – Modeling for Harmonic Analysis, Document ID: PQS0303, Date: January 10, 2003. Abstract: Harmonics have existed on electric power systems for many years. Recently, however, much more attention has been given to monitoring and analyzing the presence and effects of harmonics on utility and customer devicesContinue reading “General Reference – Modeling for Harmonic Analysis”
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