Published by 1. Magdalena UDZIK1, 2. Krzysztof ŁOWCZOWSKI1, 3. Józef Jacek ZAWODNIAK2, Politechnika Poznańska, Instytut Elektroenergetyki (1), Stowarzyszenie Elektryków Polskich Oddział Gorzowski (2) ORCID: 10000-0002-4959-2751.; 2. 0000-0002-4196-0492 Scopus: 3. 36620039300 Abstract. The paper presents selected issues related with MV/LV transformer stations to which local energy sources – photovoltaic power plants are connected. General parameters ofContinue reading “Connection of Photovoltaic Sources to the Low Voltage Distribution Network vs. Risk of Overloading the Transformer Station. Part 1: Characteristics of the Existing State”
Tag Archives: Transformers
Analysing the Performance of H5 Inverters in a Photovoltaic System
Published by 1. Mohd Sanusi Bin Mohd Mokhtar1, 2. Mohd Shafie Bin Bakar2, 3. Mohd Shawal Bin Jadin2, Paya Besar Community College (1), Faculty of Electrical and Electronics Engineering Technology, Universiti Malaysia Pahang (UMP) (2) ORCID: 2. 0000-0003-2905-6449; 3.0000-0001-6253-7821 Abstract. In this paper, a simulation study on H5 topology is presented. H5 topology is aContinue reading “Analysing the Performance of H5 Inverters in a Photovoltaic System”
Power Quality Analysis: Case Study for Induction Motor and 110/35kV Substation
Published by 1. Nuri Berisha, 2. Bahri Prebreza*, 3. Petrit Emini, Faculty of Electrical and Computer Engineering, University of PrishtinaORCID: 1. 0000-0001-8615-637X; 2. 0000-0003-1950-026X; 3. 0000-0002-2833-9001 Abstract. Power system harmonics have a significant impact on the efficiency, reliability, and stability of the system. Low power quality is determined by undervoltages and overvoltages, dips and swells,Continue reading “Power Quality Analysis: Case Study for Induction Motor and 110/35kV Substation”
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”
Dynamic Voltage Restorer for Voltage Unbalance Mitigation and Voltage Profile Improvement in Distribution Network
Publishd by Ahmed A. Abdullah AL-KARAKCHI1, Enaam ALBANNA2, Alya H. AL-RIFAIE3, Northern Technical University (1,2,3) ORCID: 1. 0000-0003-1151-3015; 2. 0000-0002-3974-0116; 3. 0000-0002-7978-2193 Abstract. Unbalanced network voltage damages utility and end-user equipment. Electrified trains, single-phase distributed generators, and line-toline connected industrial loads can increase voltage imbalances. Using Dynamic Voltage Restorer (DVR) at appropriate places is oneContinue reading “Dynamic Voltage Restorer for Voltage Unbalance Mitigation and Voltage Profile Improvement in Distribution Network”
New Technology for PQ Measurements using Auto-Calibration on Capacitive Tap on Inductive Current Transformer
Published by Jonny CARLSSON – Unipower AB, David HOLMBERG – AB Vattenfall, Jan ÖSTLUND – ABB AB Abstract A method of real-time calibrating the voltage signal from the Capacitive Tap on an ABB Current Transformer using Unipowers ‘UP-2210R/ABB Capacitive tap Module’ has produced accurate results of unbalance, harmonics and transients with no limitation in bandwidth.Continue reading “New Technology for PQ Measurements using Auto-Calibration on Capacitive Tap on Inductive Current Transformer”
Improvement of Energy Quality through the Application of BtB STATCOM in a Power System
Published by 1. Kheira BELHACEL1, 2. Mohamed BOUDIAF2, 3. Mohamed MOUDJAHED3, 4. Abderrahmane BERKANI4, L2GEGI Laboratory, Electrical Engineering Department, Ibn Khaldoun University, Tiaret, Algeria (1, 3, 4). LAADI Laboratory, Electrical Engineering Department, ZIANE Achour University, Djelfa, Algeria (2) Abstract. Currently and in the last few years, the subject of integrating FACTS in a power systemContinue reading “Improvement of Energy Quality through the Application of BtB STATCOM in a Power System”
The Latest Superconducting Short Current Limiters – Review of Selected Solutions
Published by 1. Joanna KOZIEŁ1, 2. Damian GNAT1, 3.Michał MAJKA1, 4.Yerbol Turgynebekov2,Lublin University of Technology, Department of Electrical Engineering and Electrotechnologies, Faculty of Electrical Engineering and Computer Science(1) Taraz State University after M.Kh.Dulaty, Kazakhstan(2)ORCID: 1.0000-0003-1682-2589, 3.0000-0002-7153-040X Abstract. In the article after the introduction, containing the idea and principle of operation of the SFCL, selected prototypesContinue reading “The Latest Superconducting Short Current Limiters – Review of Selected Solutions”
An Analysis of Power Quality Problems and its Mitigation
Published by Shafqat Mughal, Neeten Sharma, Pankhuri Kishore Abstract—Power Quality is a major concern of our modern industries and other consumers. Poor quality of supply will affect the performance of customer equipment such as computers, microprocessors adjustable speed drives, power electronic devices, life saving equipment in hospitals, etc. and result in heavy financial losses toContinue reading “An Analysis of Power Quality Problems and its Mitigation”
Power Quality Blog 