Published by Enaam ALBANNA1, Alya H. AL-RIFAIE2, Ahmed A. Abdullah AL-KARAKCHI3, Northern Technical University (1,2,3) ORCID: 1. 0000-0002-3974-0116; 2. 0000-0002-7978-2193; 3. 0000-0003-1151-3015; Abstract. High-impedance fault HIF occurs when an energized conductor makes contact with a surface with a high impedance. Conventional overcurrent protection cannot detect this fault due to the low fault current, and thereContinue reading “High impedance Fault Detection in Low Voltage Overhead Distribution based Wavelet and Harmonic Indices”
Tag Archives: Voltage
Optimization of Field Upgrades of MV Power Lines using Evolutionary Algorithms
Published by Wojciech NITA1, Sylwester FILIPIAK2, PGE Dystrybucja S.A. Oddział Skarżysko-Kamienna (1), Politechnika Świętokrzyska (2) Abstract. This article elaborates on and supplements the research presented in earlier works [19,20,21] on planning for upgrading field MV power grids. While that study developed models for optimizing failure rates (SAIFI, SAIDI, MAIFI) for large areas of the grid,Continue reading “Optimization of Field Upgrades of MV Power Lines using Evolutionary Algorithms”
Generation of High-Voltage Solitons in a Non-Linear Transmission Line
Published by 1. Andrzej FARYŃSKI1, 2. Zbigniew ZIÓŁKOWSKI1, 3. Przemysław SUL2, Air Force Institute of Technology (AFIT) (1), Warsaw University of Technology (2)ORCID: 1. 000-0008-1232-2747; 2. 000-0002-7713-0271; 3. 0000-0002-4327-9334 Abstract. The article describes research, the main aim of which was to present the method of generating high-voltage impulses – solitons using a non-linear NLTL transmissionContinue reading “Generation of High-Voltage Solitons in a Non-Linear Transmission Line”
Increasing Transmission Potential of 110 kV Alternating Current Lines
Published by Jacek KOZYRA, Zbigniew ŁUKASIK, Aldona KUŚMIŃSKA-FIJAŁKOWSKA, Kazimierz Pulaski University of Technology and Humanities in Radom, Faculty of Transport, Electrical Engineering and Computer Science. ORCID: 1. 0000-0002-6660-6713, 2. 0000-0002-7403-8760, 3. 0000-0002-9466-1031 Abstract. Construction of new power lines is a complicated and long-lasting formal and legal process. The duration of the investments is extended byContinue reading “Increasing Transmission Potential of 110 kV Alternating Current Lines”
Analysis of Switching Overvoltages and Protection from Atmospheric Overvoltages for 400kV Switchgears in the Kosovo Power System using ATP/EMTP
Published by 1. Bahri PREBREZA, 2. Nuri BERISHA1*, 3. Bashkim STATOVCI, Faculty of Electrical and Computer Engineering, University of PrishtinaORCID: 1. 0000-0003-1950-026X; 2. 0000-0001-8615-637X; 3. 0000-0002-6840-0778 Abstract. Power systems might experience electrical problems or power outages, due to atmospheric discharges. The quality of the protection from atmospheric overvoltages will increase the life of the equipmentContinue reading “Analysis of Switching Overvoltages and Protection from Atmospheric Overvoltages for 400kV Switchgears in the Kosovo Power System using ATP/EMTP”
A New Approach to Cross-Bonding in Medium Voltage Cable Lines
Published by Jacek KLUCZNIK, Gdansk University of Technology, Faculty of Electrical and Control Engineering. ORCID: 0000-0002-2328-9180 Abstract. The medium voltage underground cable sheaths are usually bonded and earthed in every substation on the cable route. This results in additional power losses in the sheaths. The paper presents an idea of reducing power losses caused byContinue reading “A New Approach to Cross-Bonding in Medium Voltage Cable Lines”
Connection of Photovoltaic Sources to the Low Voltage Distribution Network vs. Risk of Overloading the Transformer Station. Part 1: Characteristics of the Existing State
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”
Determination of the Place and Degree of Damage Insulation in Cables
Published by Nahid MUFIDZADA1, Gulgaz İSMAYILOVA2, Azerbaijan State Oil and Industry University, Power Faculty, “Electroenergetics” department, Baku, AzerbaijanORCID: 0000-0003-4063-2128, 0000-0003-0063-2020 Abstract. A new method has been developed to determine the location and degree of insulation damage in cables. An electrical circuit is defined, using which this task is performed. According to this scheme, one endContinue reading “Determination of the Place and Degree of Damage Insulation in Cables”
Ultra–Fast Charging of Electric Bus Fleet and its Impact on Power Quality Parameters
Published by 1. Aleksander CHUDY, 2. Paweł A. MAZUREK, Lublin University of Technology ORCID: 1. 0000-0002-3183-8450, 2. 0000-0002-7098-2084 Abstract. The research focused on one–week long measurement of power quality parameters at the connection point of a 450 kW charging station (pantograph type) in the distribution substation. The bus terminal was equipped with 1200 kVA 15.75/0.42Continue reading “Ultra–Fast Charging of Electric Bus Fleet and its Impact on Power Quality Parameters”
Analysis of Seasonality and Causes of Equipment and Facility Failures in Electric Power Distribution Networks
Published by Andrzej Ł. CHOJNACKI, Kielce University of Technology, Department of Power Engineering ORCID: 0000-0002-9227-7538 Abstract. The article presents the results of analyses concerning the seasonality and causes of damage to equipment and facilities operated in 110kV, MV and LV power distribution networks. These facilities include 110kV overhead lines, 110kV/SN substations, MV overhead and cableContinue reading “Analysis of Seasonality and Causes of Equipment and Facility Failures in Electric Power Distribution Networks”
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