Multiplicity of Overvoltages during Arc Single Phase Earth Faults in 35 kV Electrical Grids
The arc overvoltages during the single phase to earth faults in electrical distribution grids of 6-35 kV are the object of the research in this paper. The development of 35 kV distribution electrical grids is accompanied by the construction of new overhead and cable power lines. It causes a change o...
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Lviv Polytechnic National University
2021-12-01
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| Series: | Energy Engineering and Control Systems |
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| Online Access: | https://science.lpnu.ua/jeecs/all-volumes-and-issues/volume-7-number-2-2021/multiplicity-overvoltages-during-arc-single |
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| author | Zinoviy Bakhor Andriy Yatseiko Roman Ferensovych |
| author_facet | Zinoviy Bakhor Andriy Yatseiko Roman Ferensovych |
| author_sort | Zinoviy Bakhor |
| collection | DOAJ |
| description | The arc overvoltages during the single phase to earth faults in electrical distribution grids of 6-35 kV are the object of the research in this paper. The development of 35 kV distribution electrical grids is accompanied by the construction of new overhead and cable power lines. It causes a change of the capacitive earth fault current in the grids and also affects the multiplicity of overvoltages in electrical distribution grids during the single phase to earth faults. The paper shows the research results of overvoltages during arc single phase to earth faults in 35 kV electrical grid with the different grounding modes of a grid neutral (an isolated neutral, a grounded neutral through an arc-quenching reactor, a grounded neutral through a resistor). The calculations were performed on the digital models of the investigation power grids. According to the research results, a mathematical model has been created, which allows obtaining the maximum expected multiplicity of overvoltages in 35 kV electrical grids during the single phase to earth faults. This allows making decisions about the optimal measures for the protection of an electrical equipment insulation taking into account expected values of overvoltages as early as at the stage of pre-design works for the development of such electrical grids. |
| format | Article |
| id | doaj-art-0c14e5682c0d4f48b8a789bfcee3a219 |
| institution | Kabale University |
| issn | 2411-8028 2415-7287 |
| language | English |
| publishDate | 2021-12-01 |
| publisher | Lviv Polytechnic National University |
| record_format | Article |
| series | Energy Engineering and Control Systems |
| spelling | doaj-art-0c14e5682c0d4f48b8a789bfcee3a2192025-08-20T03:26:52ZengLviv Polytechnic National UniversityEnergy Engineering and Control Systems2411-80282415-72872021-12-017211111610.23939/jeecs2021.02.111Multiplicity of Overvoltages during Arc Single Phase Earth Faults in 35 kV Electrical GridsZinoviy Bakhor0Andriy Yatseiko1Roman Ferensovych2Lviv Polytechnic National UniversityLviv Polytechnic National UniversityLviv Polytechnic National UniversityThe arc overvoltages during the single phase to earth faults in electrical distribution grids of 6-35 kV are the object of the research in this paper. The development of 35 kV distribution electrical grids is accompanied by the construction of new overhead and cable power lines. It causes a change of the capacitive earth fault current in the grids and also affects the multiplicity of overvoltages in electrical distribution grids during the single phase to earth faults. The paper shows the research results of overvoltages during arc single phase to earth faults in 35 kV electrical grid with the different grounding modes of a grid neutral (an isolated neutral, a grounded neutral through an arc-quenching reactor, a grounded neutral through a resistor). The calculations were performed on the digital models of the investigation power grids. According to the research results, a mathematical model has been created, which allows obtaining the maximum expected multiplicity of overvoltages in 35 kV electrical grids during the single phase to earth faults. This allows making decisions about the optimal measures for the protection of an electrical equipment insulation taking into account expected values of overvoltages as early as at the stage of pre-design works for the development of such electrical grids.https://science.lpnu.ua/jeecs/all-volumes-and-issues/volume-7-number-2-2021/multiplicity-overvoltages-during-arc-singleelectrical gridarc overvoltageisolated neutralsingle phase to earth faultmathematical model |
| spellingShingle | Zinoviy Bakhor Andriy Yatseiko Roman Ferensovych Multiplicity of Overvoltages during Arc Single Phase Earth Faults in 35 kV Electrical Grids Energy Engineering and Control Systems electrical grid arc overvoltage isolated neutral single phase to earth fault mathematical model |
| title | Multiplicity of Overvoltages during Arc Single Phase Earth Faults in 35 kV Electrical Grids |
| title_full | Multiplicity of Overvoltages during Arc Single Phase Earth Faults in 35 kV Electrical Grids |
| title_fullStr | Multiplicity of Overvoltages during Arc Single Phase Earth Faults in 35 kV Electrical Grids |
| title_full_unstemmed | Multiplicity of Overvoltages during Arc Single Phase Earth Faults in 35 kV Electrical Grids |
| title_short | Multiplicity of Overvoltages during Arc Single Phase Earth Faults in 35 kV Electrical Grids |
| title_sort | multiplicity of overvoltages during arc single phase earth faults in 35 kv electrical grids |
| topic | electrical grid arc overvoltage isolated neutral single phase to earth fault mathematical model |
| url | https://science.lpnu.ua/jeecs/all-volumes-and-issues/volume-7-number-2-2021/multiplicity-overvoltages-during-arc-single |
| work_keys_str_mv | AT zinoviybakhor multiplicityofovervoltagesduringarcsinglephaseearthfaultsin35kvelectricalgrids AT andriyyatseiko multiplicityofovervoltagesduringarcsinglephaseearthfaultsin35kvelectricalgrids AT romanferensovych multiplicityofovervoltagesduringarcsinglephaseearthfaultsin35kvelectricalgrids |