Published by Alex Roderick, EE Power – Technical Articles: Troubleshooting Electric Motor Power Circuits, October 15, 2021. The two major parts of a motor circuit are the motor power circuit and the motor control circuit. Learn some basic troubleshooting tips for these kinds of motor circuits. A motor power circuit is the section of an electricalContinue reading “Troubleshooting Electric Motor Power Circuits”
Tag Archives: Power System
Tests of Selected Distance Protection Functions of Modern Protective Relay used for HV and EHV Transmission Lines Protection
Published by Marcin JANUSZEWSKI, Ryszard KOWALIK, Karol KUREK, Emil BARTOSIEWICZ, Adam SMOLARCZYK, Désiré D. RASOLOMAMPIONONA, Warsaw University of Technology, Electrical Power Engineering Institute Abstract. This article describes the comparison of test results of distance protection functions (ANSI 21) implemented in protective relays of various manufacturers dedicated to HV and EHV lines protection. A special emphasisContinue reading “Tests of Selected Distance Protection Functions of Modern Protective Relay used for HV and EHV Transmission Lines Protection”
Frequency Control in a Power System
Published by Pietro Tumino, EE Power – Technical Articles: Frequency Control in a Power System, October 15, 2020. Learn about the primary, secondary and tertiary frequency control in a power system. An electric power system is characterized by two main important parameters: voltage and frequency. In order to keep the expected operating conditions and supply energyContinue reading “Frequency Control in a Power System”
Control System for Distributed Generation in Low Voltage Network Systems
Published by Robert JĘDRYCHOWSKI, Klara SEREJA, Politechnika Lubelska, Katedra Sieci Elektrycznych i Zabezpieczeń, Poland Abstract. Implementation of prosumer energy generation to low-voltage network systems involves both benefits and technological problems concerning the grid operation. Electricity generation in LV network systems is of a distributed and quite unpredictable character. In those systems, solar PV installations, whoseContinue reading “Control System for Distributed Generation in Low Voltage Network Systems”
Advantages of Interwinding Capacitive Test Setup in FRA Diagnostics of Transformer Windings
Published by Wojciech SZOKA, Szymon BANASZAK, Konstanty M. GAWRYLCZYKZachodniopomorski Uniwersytet Technologiczny w Szczecinie, Katedra Elektrotechnologii i Diagnostyki, Poland Abstract. Transformers are the main element of the power system. Their reliable operation affects the efficiency of energy supply. Each transformer should be subjected to periodic diagnostic tests. Frequency response analysis (FRA) is a non-destructive diagnostic methodContinue reading “Advantages of Interwinding Capacitive Test Setup in FRA Diagnostics of Transformer Windings”
Distance Protection Analysis Applied for Distribution System with Distributed Generation
Published by João T. L. S. CAMPOS1,2, Huilman S. SANCA1, Flavio B. COSTA3, Benemar A. de SOUZA1, Universidade Federal de Campina Grande (1), Universidade Potiguar (2), Universidade Federal do Rio Grande do Norte (3) Abstract. In power systems, the over-current protection scheme and, optionally with directional function, and distance function are the main protection used,Continue reading “Distance Protection Analysis Applied for Distribution System with Distributed Generation”
Autotransformers for Power Systems
Published by Waldemar ZIOMEK, PTI Manitoba Inc., Winnipeg, MB, Canada Abstract. When the primary and secondary voltages are obtained from the same winding, or from two windings which are galvanically connected, such a transformer is called an autotransformer. The paper will focus on fundamentals, design and applications of autotransformers of core-type design. The selected problemsContinue reading “Autotransformers for Power Systems”
Capabilities of Polish Power Plants – Advantages and Threats
Published by Paweł SZMITKOWSKI1, Sylwia ZAKRZEWSKA1, Agnieszka GIL2, Paweł ŚWIDERSKI1Siedlce University, Social Science and Security Institute (1), Siedlce University, Institute of Mathematics and Physics (2) Abstract. The Polish energy infrastructure is very diverse, both in terms of the distribution of power plants in particular regions of the country, as well as the fuels used inContinue reading “Capabilities of Polish Power Plants – Advantages and Threats”
The use of Power Restoration Systems for Automation of Medium Voltage Distribution Grid
Published by Michał KONARSKI, Paweł WĘGIEREK, Lublin University of Technology, Faculty of Electrical Engineering and Computer Science, Lublin, Poland Abstract. The article presents assumptions, characteristics and conclusions of functional tests of a pilot implementation of a power restoration system in one of the Distribution System Operators. The main objective of conducted and described tests wasContinue reading “The use of Power Restoration Systems for Automation of Medium Voltage Distribution Grid”
Selected Aspects of Photovoltaic Power Station Operation in the Power System
Published by Andrzej LANGE1, Marian PASKO2University of Warmia and Mazury, Department of Electrical and Power Engineering, Electronics and Automation (1), Silesian University of Technology, Institute of Electrical Engineering and Computer Science (2) Abstract. This paper presents the results of a five-year study of a 1 MW photovoltaic power station in the Warmia and Mazury Province.Continue reading “Selected Aspects of Photovoltaic Power Station Operation in the Power System”
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