Published by Dirk Danninger IEEE Member Schweitzer Engineering Laboratories, Inc. 2350 NE Hopkins Court Pullman, WA 99163, USAScott Manson Senior Member, IEEE Schweitzer Engineering Laboratories, Inc. 2350 NE Hopkins Court Pullman, WA 99163, USAFernando Calero IEEE Member Schweitzer Engineering Laboratories, Inc. 2350 NE Hopkins Court Pullman, WA 99163, USACeeman Vellaithurai Senior Member, IEEE Schweitzer EngineeringContinue reading “Case Studies on Ground-Fault Protection of Microgrid Power Systems with Diverse Power Sources”
Category Archives: Case Studies
Usage of Existing Power Plants as Synchronous Condenser
Published by Alexander DEECKE, Rafael KAWECKISiemens AG, Power and Gas, Instrumentation and Electrical Abstract. Due to the continuously increasing amount of renewable energy being generated and the simultaneous reduction in rotating masses, the demand for grid-stabilizing measures is growing. To solve the problem different possibilities are known, one of them is the reuse of fossileContinue reading “Usage of Existing Power Plants as Synchronous Condenser”
Chargers for Electric Cars with V2G (Vehicle to Grid) Technology – Connection Principles for the Distribution Network
Published by Joanna BARANIAK, Jacek STARZYŃSKI Warsaw University of Technology, Institute of Theory of Electrical Engineering, Measurement and Information Systems Abstract. Electric vehicles will be an integral part of the smart grid in the future. The chargers that come with the V2G (vehicle to grid) service provide bidirectional electrical energy flow between the cars andContinue reading “Chargers for Electric Cars with V2G (Vehicle to Grid) Technology – Connection Principles for the Distribution Network”
Electric Power System of Tu-154M Passenger Aircraft
Published by Jacek F. GIERAS, University of Technology and Life Sciences, Bydgoszcz Abstract. The paper discusses the electric power system of the Tu-154M aircraft. After brief introduction to aircraft power systems, the results of reverse design and analysis of the GT40PCh6 wound-field synchronous generator including short circuit have been presented. Electric power distribution and assignmentContinue reading “Electric Power System of Tu-154M Passenger Aircraft”
The Influence of Selected Biomedical Research Equipment in the Aspect of Higher Harmonics Generating
Published by Anna KOZIOROWSKA1,2, Dariusz SOBCZYŃSKI3, Wiesława MALSKA3 Uniwersytet Rzeszowski, Wydział Matematyczno – Przyrodniczy, Instytut Techniki (1)Uniwersytet Rzeszowski, Centrum Biotechnologii Stosowanej i Nauk Podstawowych (2)Politechnika Rzeszowska, Wydział Elektrotechniki i Informatyki, Katedra Energoelektroniki i Elektroenergetyki (3) Abstract: Specialized biomedical laboratory equipment, very often use power converters, which are a source of higher harmonics. These devices dependingContinue reading “The Influence of Selected Biomedical Research Equipment in the Aspect of Higher Harmonics Generating”
Overvoltage Assessment of Point-to-Point VSC-Based HVDC Systems
Published by Jose A. JARDINI1, Ricardo L. VASQUEZ-ARNEZ2, Marcos T. BASSINI1, Marco A.B. HORITA1, Gerson Y. SAIKI2 and Marcos R. CAVALHEIRO3 Polytechnic School of the University of Sao Paulo (1), Foundation for the Technological Development of the Engineering Sciences (2), CTEEP Sao Paulo State Power Transmission Company (3). Abstract. The application of voltage source convertersContinue reading “Overvoltage Assessment of Point-to-Point VSC-Based HVDC Systems”
Current-Carrying Capacity Parallel Single-Core LV Cable
Published by Lech BOROWIK1, Artur CYWIŃSKI2Politechnika Częstochowska, Wydział Elektryczny (1), Pracownia Projektowa omega-projekt (2) Abstract. The paper presents the problems related to the selection of parallel single-core low voltage cables in terms of their current carrying capacity and accordance with PN-IEC 60364-5-523 national standard, exemplified by electric power transmission from transformer MV/LV 1600kVA, with proximityContinue reading “Current-Carrying Capacity Parallel Single-Core LV Cable”
The Measurement of Input Power of Power Supply in Network Disturbed by Low Frequency Distortions
Published by Stanisław GALLA, Arkadiusz SZEWCZYK,Gdansk University of Technology Faculty of Electronics, Telecommunications and Informatics Abstract. In the paper authors present results of observation of input power changes versus harmonics amplitude in supply voltage of low-power power supply device. In the study, the electrical measurements supported with thermal imaging were used. The input circuit elementsContinue reading “The Measurement of Input Power of Power Supply in Network Disturbed by Low Frequency Distortions”
Thermal Problems in HTS Transformer due to Inrush Current
Published by Grzegorz KOMARZYNIEC1, Tadeusz JANOWSKI2, Grzegorz WOJTASIEWICZ2, Michał MAJKA2, Politechnika Lubelska, Instytut Podstaw Elektrotechniki i Elektrotechnologii (1), Instytut Elektrotechniki w Warszawie (2) Abstract. With switching on a superconducting transformer to the energetic network, a unidirectional current of high amplitude may appear. Maximal values of the current impulses following shortly one after the other mayContinue reading “Thermal Problems in HTS Transformer due to Inrush Current”
Method of Selecting the Most Important Power Lines in a Transmission and Distribution Network
Published by Dalibor VALEK, Radomir SCUREK, Technical University of Ostrava, Faculty of Safety Engineering Abstract: This article describes the method used to graph theory in security analysis. For the pursposes of this study, an environment is referred to here as a network of power lines and devices and a power grid is considered as aContinue reading “Method of Selecting the Most Important Power Lines in a Transmission and Distribution Network”
Power Quality Blog 