Published by SARAGADAM HEMANTH KUMAR, SH SURESH KUMAR BUDI, Dept. of EEE, Gokul Group of Institutions, Piridi, Bobbili, AP, India. Abstract: Voltage sag is one of the most common power quality disturbances in electrical networks. Voltage sags are incidents that reduce the voltage amplitude for a short time. Voltage Sags are caused by abrupt increasesContinue reading “Novel Fault Current Limiter for Voltage Sag Compensation of Point of Common Coupling”
Tag Archives: Power Quality
A Case Study of Sharing the Harmonic Voltage Distortion Responsibility between the Utility and the Consumer
Published by F. H. Costa, I. N. Santos, S. F. P. Silva and J. C. de Oliveira, Group of Power Quality Faculty of Electrical Engineering Federal University of Uberlandia Campus Santa Monica – Av. João Naves de Ávila, 2100 Uberlandia (Brazil). Phone/Fax number:+55 (34) 3239-4733, e-mail: fernandahein@hotmail.com, ivan.ufu@gmail.com, sergio@qes.com.br, jcoliveira@ufu.br Abstract. The aim of thisContinue reading “A Case Study of Sharing the Harmonic Voltage Distortion Responsibility between the Utility and the Consumer”
Power System Harmonics
Published by Olutayo Ogunyemi, School of Science and Engineering, Atlantic International University, Honolulu, HI. Abstract – Good power quality is essential in electrical power network. Power quality is not limited to availability of supply but also include steady frequency value and voltage magnitude and smooth waveform characteristics of the supply (Ogheneovo Johnson, 2016).The present situationContinue reading “Power System Harmonics”
Elspec becomes PQSynergy™ & Power Quality Blog Sponsor
We are pleased to announce that Elspec was a Sponsor for PQSynergyTM International and Conference Exhibition 2024 and Power Quality Blog. It is a privilege to be supported by Elspec. We are grateful to the Elspec team. Elspec is a leading global provider of advanced power quality analyzers, power quality solutions and power monitoring software.Continue reading “Elspec becomes PQSynergy™ & Power Quality Blog Sponsor”
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”
Problems of the Current State of Power Quality and Proposals for their Solution
Published by Lidiya Kovernikova, Melentiev Energy Systems Institute of the Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russian Federation. Email: kovernikova@isem.irk.ru Abstract. The power quality in Russian electrical networks does not meet the requirements of regulatory documents. Big problems occur in all areas of people’s lives for this reason. Economic damage is oneContinue reading “Problems of the Current State of Power Quality and Proposals for their Solution”
Impact of Harmonics on Power Quality and Losses in Power Distribution Systems
Published by M. Jawad Ghorbani, H. Mokhtari**, Dept. of CSEE, West Virginia University, Morgantown, WV, USA, ** Dept. of EE, Sharif University of Technology, Tehran, Iran. ABSTRACT – This paper investigates the harmonic distortion and losses in power distribution systems due to the dramatic increase of nonlinear loads. This paper tries to determine the amountContinue reading “Impact of Harmonics on Power Quality and Losses in Power Distribution Systems”
Case Study for Obtaining Power Quality Grid-Code Compliance
Published by Dirk A. J. van der Bank, and Kyle Lass, Energize, July 2018 The practical implications of obtaining power quality (PQ) grid-code compliance for category C photovoltaic (PV) renewable power plants (RPP) are described in this article. Successful harmonic mitigation was implemented via means of the installation of active harmonic filters (AHF) at lowContinue reading “Case Study for Obtaining Power Quality Grid-Code Compliance”
Power Quality Survey in a Distribution System, Standard Procedures and Limitations
Publishd by H. Mokhtari1, S. Hasani and M. Masoudi2, 1Associate Professor Department of Electrical Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran. Email: mokhtari@sharif.edu, 2Project Engineer and Management, West Azarbayjan Utility, Oroumieh, Iran. Email: sh592b@yahoo.com Abstract ⎯ This paper presents the results of a power quality survey in a distribution system. More than fiftyContinue reading “Power Quality Survey in a Distribution System, Standard Procedures and Limitations”
The Problem of Determining the Coefficient of Flicker in Accordance to Normative Regulations
Published by Marta BĄTKIEWICZ-PANTUŁA, Wrocław University of Science and Technology, Institute of Electrical Power Engineering Abstract. The article presents an analysis of the selected parameter of the power quality. The analysis was done in accordance with the applicable normative regulations. The results presented in the article were made on the basis of actual measurements ofContinue reading “The Problem of Determining the Coefficient of Flicker in Accordance to Normative Regulations”
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