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: Safety/Protection
Communication Research of Protective Relays for Microgrids and Active Distribution Networks
Published by 1. Róbert Štefko1, Zsolt Čonka1, Michal Kolcun, 2. Viktor Jurák2, 3. Judith Pálfi3, Technical University of Košice (1), Brno University of Technology (2), Óbuda University (3) ORCID: 1. 0000-0002-2477-4559, 0000-0001-6620-4354, 0000-0002-8041-9076; 2. 0000-0002-6832-7654 Abstract. The penetration of renewable energy sources into the electricity distribution network causes changes in power flows, making conventional protectionContinue reading “Communication Research of Protective Relays for Microgrids and Active Distribution Networks”
Presentation Harmonics Distortion of Power Waveforms Signals
Published by Małgorzata ZYGARLICKA1, Jarosław ZYGARLICKI2, Politechnika Opolska, Instytut Automatyki i Informatyki (1) Politechnika Opolska, Instytut Elektroenergetyki i Energii Odnawialnej (2) Abstract. The paper presents a new proposal for the presentation of the harmonic distortion of the power signals. The proposed method uses a simplified method of harmonic analysis – five ordinates method by whichContinue reading “Presentation Harmonics Distortion of Power Waveforms Signals”
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”
Planning and Performing a Power Quality Survey
Published by Dranetz Technologies, Support – Technical Documents, Application Note, website: dranetz.com, 800-372-6832 (U.S & Canada) +1-732-287-3680 (International). INTRODUCTION The power quality survey is the first, and perhaps most important, step in identifying and solving power problems. Power problems can harm equipment performance and reduce reliability, lower productivity and profitability, and even pose personnel safetyContinue reading “Planning and Performing a Power Quality Survey”
Distance Protection Operation During Earth-Faults in High Voltage Networks with Cable Inserts
Published by 1. Dominik DUDA, 2. Krzysztof MAŹNIEWSKI, 3. Bernard WITEK, Silesian University of Technology, Faculty of Electrical Engineering, Department of Power System and ControlORCID: 1. 0000-0003-3247-2814; 2. 0000-0003-4357-6432, 3. 0000-0001-6732-9298 Abstract. Selected problems occurring in distance protection systems during earth faults in high voltage overhead cable lines (HV) were analyzed. The Alternative Transients ProgramContinue reading “Distance Protection Operation During Earth-Faults in High Voltage Networks with Cable Inserts”
Identification of Electric Field Strength in Aircrafts
Published by 1. Joanna MICHAŁOWSKA1, 2. Paweł TOMIŁO2, 3. Jarosław PYTKA2, 4. Łukasz PUZIO1, 5. Arkadiusz TOFIL1, The University College of Applied Science in Chelm (1), Lublin University of Technology (2) ORCID: 1.0000-0002-2353-6305, 2. 0000-0003-4461-3194, 3. 0000-0002-5474-3585, 4. 0000-0002-7116-8586, 5. 0000-0003-2392-6597 Abstract. The development of new technologies contributes to an increase in the value ofContinue reading “Identification of Electric Field Strength in Aircrafts”
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 2: Simulation Analysis
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 article is the second part of the analysis of the impact of connecting PV sources to the low voltage distribution network on the riskContinue reading “Connection of Photovoltaic Sources to the Low Voltage Distribution Network vs. Risk of Overloading the Transformer Station. Part 2: Simulation Analysis”
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