Published by Unipower AB, Metallgatan 4C, 44132 Alingsås, Sweden. Email: info@unipower.se Power quality is a generic term for disturbance-free electricity supply. Deviation from voltage sinusoidal waveform (50 Hz), which may result in equipment being disturbed or damaged, is to be regarded as a power quality disturbance. This means that the more sensitive equipment you connect toContinue reading “Unipower – About Power Quality”
Category Archives: Power Quality
Choosing The Right Equipment
Published by Unipower AB, Metallgatan 4C, 44132 Alingsås, Sweden. Email: info@unipower.se What do you need to measure? Power quality is assessed based on a number of power quality parameters. Today’s instruments usually handle the most common parameters such as voltage, current, power, harmonics, voltage dips, flicker and transients. Often it is difficult to say in advanceContinue reading “Choosing The Right Equipment”
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”
Harmonic Information Management System
Published by 1. Johan ADOLFSSON, Director, Unipower AB, ja@unipower.se, 2. Peter ANDERSSON, CEO, Unipower AB, psa@unipower.se, 3. Nilesh CHINTALWAR, GM, PCI Ltd, nilesh@prime-pci.in, 4. Shital SHAH, PCI Ltd, shitalshah@prime-pci.in INTRODUCTION In the vast majority of countries today there are regulations and standards implemented that specify the maximum level of harmonic content. Some countries implement theContinue reading “Harmonic Information Management System”
ERP Systems in Energy Industry – Opportunities and Challenges
Published by 1. Edyta KUCHARSKA, 2. Katarzyna GROBLER-DĘBSKA, 3. Jerzy BARANOWSKI, 4. Waldemar BAUER, 5. Nataliia KASHPRUK, AGH UNIVERSITY OF SCIENCE AND TECHNOLOGY, KRAKOW, POLAND ORCID: 1. 0000-0001-6551-5062; 2. 0000-0003-3062-5987, 3. 0000-0003-3313-581X, 4. 0000-0002-8543-0995, 5. 0000-0001-5599-5509 Abstract. The article describes the use of ERP systems to support the management of companies in the energy industry.Continue reading “ERP Systems in Energy Industry – Opportunities and Challenges”
Transient Detection using Peak Detectors
Published by Jonny Carlsson, Unipower AB, http://www.unipower.se Background The main problem with transients in the electrical network is that a high voltage potential might break the isolation barrier in for example cables or other equipment in the electrical network. It may also harm semiconductors that are sensitive of high voltage. A transient voltage is byContinue reading “Transient Detection using Peak Detectors”
Overview of Control System Topology of Flywheel Energy Storage System in Renewable Energy Application for Alternative Power Plant
Published by M.S. ALI1,2, Mahidur R SARKER3, Mohamad Hanif Md SAAD3, Ramizi MOHAMED1, 1Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia; 2Electrical Engineering Department, German-Malaysian Institute , Jalan Ilmiah, Taman Universiti,43000, Kajang, Selangor, Malaysia; 3Institute of IR 4.0, Universiti Kebangsaan Malaysia, 43600 UKM Bangi,Continue reading “Overview of Control System Topology of Flywheel Energy Storage System in Renewable Energy Application for Alternative Power Plant”
Analysis of Transient Electromagnetic Processes in the Ultrahigh Voltage Transmission Line during Two-Phase Short Circuits
Published by 1. Tomasz PERZYŃSKI1, 2. Vitaliy LEVONIUK2, 3. Radosław FIGURA1, Faculty of Transport, Electrical Engineering and Computer Science, University of Technology and Humanities in Radom (1) Department of Electrical Systems, Lviv National Agrarian University (2)ORCID: 1. 0000-0001-5105-5034; 2. 0000-0003-2113-107X; 3. 0000-0001-8048-5623 Abstract. The mathematical model of a fragment of ultrahigh voltage electric network isContinue reading “Analysis of Transient Electromagnetic Processes in the Ultrahigh Voltage Transmission Line during Two-Phase Short Circuits”
Analysis of Development Directions of Online Diagnostics of Synchronous Generator
Published by Olena RUBANENKO1, Sree Lakshmi GUNDEBOMMU2, Iryna HUNKO3, Zdenek PEROUTKA1, Regional Innovational Center at the Faculty of Electrical Engineering University of West Bohemia (1), Plzen, Czech Republic CVR College of Engineering Mangalpalli (2), Hyderabad, India Vinnytsia National Technical University (3), Vinnytsia, Ukraine Abstract. In this paper the analysis of online diagnostics of synchronous generationsContinue reading “Analysis of Development Directions of Online Diagnostics of Synchronous Generator”
Bridges to Nowhere: Poor Power Quality Prevents Growth
Published by Civian Kiki Massa and Jay Taneja STIMA Lab, University of Massachusetts, Amherst, USA July 2023 Summary: Access to electricity continues to expand worldwide, but even where people are connected to the power grid, they often face challenges including frequent power outages and, less visibly, intermittent periods where electricity is available but only withContinue reading “Bridges to Nowhere: Poor Power Quality Prevents Growth”
Power Quality Blog 