An Introduction to Harmonics

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”

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”

Ground Fault Protection Methods of a Generator Stator

Published by Ahmad Rizal SULTAN, Mohd Wazir bin MUSTAFA, Technology University of Malaysia, Faculty of Electrical Engineering Abstract. The type of generator grounding method and the system configuration determine the choice of ground fault protection. Ground fault generator stator can cause serious damage to the generator. Therefore, the total area of the generator stator windingsContinue reading “Ground Fault Protection Methods of a Generator Stator”

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”

Evaluation of the Impact of Specialized Biotechnological Laboratory Equipment in the Context of Higher Harmonics Generation

Published by Wiesława MALSKA1, Anna KOZIOROWSKA2,3, Dariusz SOBCZYŃSKI1Rzeszow University of Technology, The Faculty of Electrical and Computer Engineering,Department of Power Electronics and Power Engineering (1)University of Rzeszow, Department of Mathematics – Natural Sciences, Institute of Technics (2)Institute of Applied Biotechnology and Basic Science University of Rzeszow, (3) Abstract. Specialized laboratory equipment, often uses power converters,Continue reading “Evaluation of the Impact of Specialized Biotechnological Laboratory Equipment in the Context of Higher Harmonics Generation”

Industrial Customer IEEE Std. 519 Compliance Evaluation

Published by Electrotek Concepts, Inc., PQSoft Case Study: Industrial Customer IEEE Std. 519 Compliance Evaluation, Document ID: PQS1003, 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 an industrial customer IEEE Std.Continue reading “Industrial Customer IEEE Std. 519 Compliance Evaluation”

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”

IEEE Standard 519-2022 Update and Changes From Prior Version (-2014)

Published by Mirus International Inc. APPLICATION NOTE IEEE STD 519 – 2022 UPDATE_HARMONIC STANDARD IEEE Standard for Harmonic Control in Electric Power Systems (IEEE Std 519-2022), is a highly recognized and referenced standard, and has been updated in 2022 from its prior 2014 version. The purpose of the standard is to establish goals for theContinue reading “IEEE Standard 519-2022 Update and Changes From Prior Version (-2014)”

IEEE 519-1992 Compliance

Published by Electrotek Concepts, Inc., PQSoft Case Study: IEEE 519 Compliance, Document ID: PQS0321, Date: October 10, 2003. Abstract: IEEE Standard 519-1992 is a standard that addresses the need for limiting the harmonic current a customer injects onto the utility system. It also protects the customer by specifying maximum harmonic voltage distortion levels that utilities canContinue reading “IEEE 519-1992 Compliance”