Published by Roland Buerger (Senseleq B.V.), Dr. Thomas Heid (CONDIS SA) Internationally, it is not easy to specify the range of high voltage exactly. The boundary between medium and high voltage is between 30 kV and 100 kV, depending on local and historical conditions. In the current version of EN 50160 from 2020, the voltageContinue reading “Billing Measurements in the High and Extra-High Voltage Network taking into Account the New Frequency Classes According to IEC 61869-1 ED2 (AFDIS)”
Category Archives: Case Studies
Operating Assessment of Local Power Grid Development Considered Captive Power Plant and Expanding Structure
Published by Arif Nur AFANDI1,2,3, Irham FADLIKA1, Langlang GUMILAR1, Takeshi HIYAMA4 1Electrical Engineering, Universitas Negeri Malang, Malang, Indonesia 2Center for Advanced Materials for Renewable Energy, Universitas Negeri Malang, Malang, Indonesia3Smart Power and Advanced Energy Systems Research Center, Batu, Jawa Timur, Indonesia4The IROAST, Kumamoto University, Kumamoto, Japan Abstract. Based on current developments related to the applicationContinue reading “Operating Assessment of Local Power Grid Development Considered Captive Power Plant and Expanding Structure”
Industrial Harmonic Filter Design
Published by Electrotek Concepts, Inc., PQSoft Case Study: Industrial Harmonic Filter Design, Document ID: PQS0504, Date: June 30, 2005. Abstract: The industrial harmonic problem can be solved using a comprehensive approach including site surveys, harmonic measurements, and computer simulations. Simple calculations are used to determine the system resonant frequencies and then the preliminary model development isContinue reading “Industrial Harmonic Filter Design”
Assessment of the Impact of Photovoltaic System on the Power Quality in the Distribution Network
Published by Marek GAŁA, Andrzej JĄDERKO, Czestochowa University of Technology, Faculty of Electrical Engineering Abstract. The paper offers a characteristic of a photovoltaic (PV) system with the function UPS, equipped with energy storage AQUION ENERGY Battery 25 kWh and a system for monitoring and management of energy flow. Results and their analysis is presented forContinue reading “Assessment of the Impact of Photovoltaic System on the Power Quality in the Distribution Network”
Faults and Defects in Power Transformers – A Case Study
Published by Cacilda de Jesus Ribeiro1; André Pereira Marques2,3; Cláudio Henrique Bezerra Azevedo2; Denise Cascão PoliSouza1; Bernardo Pinheiro Alvarenga1; Reinaldo Gonçalves Nogueira1 1School of Electrical and Computer Engineering, Federal University of Goiás, Goiânia, GO, Brazil,2CELG Distribuição, Goiânia, GO, Brazil,3Federal Institute of Education, Science and Technology of Goiás, Goiânia, GO, Brazil Abstract – Power transformers playContinue reading “Faults and Defects in Power Transformers – A Case Study”
Cars with Electric Drive and External Costs of Road Transport
Published by Wojciech GIS1, Zdzisław KORDEL2, Maciej MENES1,Motor Transport Institute (1), The University of Gdańsk (2) Abstract. The paper describes external environmental costs of road transport. Article presents also an assessment of the so-called reduction. “Marginal costs” such as the cost of fuel emissions, noise and greenhouse gas emissions, by the introduction into service, inContinue reading “Cars with Electric Drive and External Costs of Road Transport”
Modeling of Overvoltages in Gas Insulated Substations
Published by Tomasz KUCZEK, Marek FLORKOWSKI, ABB Corporate Research Center in Krakow, Poland Abstract. Gas Insulated Substations (GIS) are broadly used for transmission and distribution of electric power. Due to the interactions with a network and various environmental phenomena like lightning the GIS are subjected to the Very Fast Transients (VFT). Such VFT can beContinue reading “Modeling of Overvoltages in Gas Insulated Substations”
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”
Usability Evaluation of PEM Fuel Cell and Supercapacitors Application in the Emergency Power Backup System
Published by Marek MALINOWSKI, Jacek CHMIELOWIEC, Grzegorz PAŚCIAK, Tymoteusz ŚWIEBODA, Electrotechnical Institute, Division of Electrotechnology and Materials Science Abstract. Evaluation of FC/SC-based UPS has been done in terms of energy containers usability in the power emergency generation system. The Uninterruptible Power Supply delivers electric support for connected loads basing on hydrogen energy direct conversion intoContinue reading “Usability Evaluation of PEM Fuel Cell and Supercapacitors Application in the Emergency Power Backup System”
Power Quality Blog 