Calculation and experimental determination of the speed of advancement of the plasma leader channel of a pulse spark discharge in atmospheric air
Goal. Calculation and experimental determination of middle speed vL of advancement of plasma leader channel of a pulse spark discharge in the long air interval of the double-electrode discharge system (DEDS) «tip-plane». Methodology. Bases of the theoretical electrical engineering and electrophysics...
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| Дата: | 2024 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English Ukrainian |
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National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine
2024
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| Онлайн доступ: | http://eie.khpi.edu.ua/article/view/298664 |
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| Назва журналу: | Electrical Engineering & Electromechanics |
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Electrical Engineering & Electromechanics| id |
eiekhpieduua-article-298664 |
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ojs |
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Electrical Engineering & Electromechanics |
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| datestamp_date |
2024-02-24T09:42:18Z |
| collection |
OJS |
| language |
English Ukrainian |
| topic |
plasma leader channel electric pulse spark discharge air dielectric advance speed of a spark discharge front calculation experiment |
| spellingShingle |
plasma leader channel electric pulse spark discharge air dielectric advance speed of a spark discharge front calculation experiment Baranov, M. I. Calculation and experimental determination of the speed of advancement of the plasma leader channel of a pulse spark discharge in atmospheric air |
| topic_facet |
plasma leader channel electric pulse spark discharge air dielectric advance speed of a spark discharge front calculation experiment плазмовий лідерний канал електричний імпульсний іскровий розряд повітряний діелектрик швидкість просування фронту іскрового розряду розрахунок експеримент |
| format |
Article |
| author |
Baranov, M. I. |
| author_facet |
Baranov, M. I. |
| author_sort |
Baranov, M. I. |
| title |
Calculation and experimental determination of the speed of advancement of the plasma leader channel of a pulse spark discharge in atmospheric air |
| title_short |
Calculation and experimental determination of the speed of advancement of the plasma leader channel of a pulse spark discharge in atmospheric air |
| title_full |
Calculation and experimental determination of the speed of advancement of the plasma leader channel of a pulse spark discharge in atmospheric air |
| title_fullStr |
Calculation and experimental determination of the speed of advancement of the plasma leader channel of a pulse spark discharge in atmospheric air |
| title_full_unstemmed |
Calculation and experimental determination of the speed of advancement of the plasma leader channel of a pulse spark discharge in atmospheric air |
| title_sort |
calculation and experimental determination of the speed of advancement of the plasma leader channel of a pulse spark discharge in atmospheric air |
| title_alt |
Розрахунково-експериментальне визначення швидкості просування плазмового лідерного каналу імпульсного іскрового розряду в атмосферному повітрі |
| description |
Goal. Calculation and experimental determination of middle speed vL of advancement of plasma leader channel of a pulse spark discharge in the long air interval of the double-electrode discharge system (DEDS) «tip-plane». Methodology. Bases of the theoretical electrical engineering and electrophysics, electrophysics bases of technique of ultra- and high-voltage and high pulse currents, bases of high-voltage pulse technique and measuring technique. Results. The close calculation and experimental method of determination of middle speed vL of advancement of plasma leader channel of an electric pulse spark discharge is offered in the long air interval of DEDS «tip-plane». This method is based on the offered calculation empiric formula for finding of the indicated speed vL and results of decoding of oscillograms of process of cut of in-use standard interconnect аperiodic pulse of over- and high-voltage of temporal shape of Tm/Тd≈200 μs/1990 μs of positive polarity at an electric hasp in indicated DEDS of long air intervals with their minimum length of lmin, numeral making 1,5 m (first case) and 3 m (second case). It is shown that middle speed vL of advancement in atmospheric air of front of plasma channel of positive leader of an electric pulse spark discharge in probed DEDS «tip-plane» for two considered applied cases at lmin=1,5 m of lmin=3 m numeral makes approximately vL≈(1±0,03)∙105 m/s. The found numeral value of this speed vL well coincides with the known experimental information for speed of advancement of vL≈105 m/s in atmospheric air of plasma channel of negative leader for a long storm spark discharge in DEDS «charged cloud-earth». It is set that for the standard interconnect аperiodic pulse of high- and ultra- voltage of temporal shape of Tm/Тd≈200 μs/1990 μs of positive polarity middle value of aggressive strength Ed of high pulse electric field in the air interval of probed DEDS «tip-plane» numeral makes minimum length of lmin=1,5 m near Ed1≈360,8 kV/m, and for his minimum length of lmin=3 m of − Ed2≈313,4 kV/m. Originality. The comfortable is developed in the use and reliable in practical realization technicians-and-engineers calculation and experimental method of research in the conditions of high-voltage electrophysics laboratory of difficult electro-discharge processes of development of leader hasp of long air intervals and determination of minimum electric durability of air insulation of electrical power engineering and electrophysics equipment on working voltage of classes of 330-1150 kV. Practical value. Application in area of industrial electrical power engineering and high-voltage pulse technique of the got numeral electrophysics results and offered calculation and experimental method of determination of middle speed vL of advancement in atmospheric air of plasma channel of leader of a long spark discharge will allow, from one side, to deepen our scientific knowledges about a long electric pulse spark discharge in an air dielectric, and, from other side, to develop high-voltage electrical power engineering and electrophysics devices with enhanceable reliability of their work both in normal operation and malfunctions. |
| publisher |
National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine |
| publishDate |
2024 |
| url |
http://eie.khpi.edu.ua/article/view/298664 |
| work_keys_str_mv |
AT baranovmi calculationandexperimentaldeterminationofthespeedofadvancementoftheplasmaleaderchannelofapulsesparkdischargeinatmosphericair AT baranovmi rozrahunkovoeksperimentalʹneviznačennâšvidkostíprosuvannâplazmovogolídernogokanaluímpulʹsnogoískrovogorozrâduvatmosfernomupovítrí |
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2025-07-17T11:50:06Z |
| last_indexed |
2025-07-17T11:50:06Z |
| _version_ |
1850412158668505088 |
| spelling |
eiekhpieduua-article-2986642024-02-24T09:42:18Z Calculation and experimental determination of the speed of advancement of the plasma leader channel of a pulse spark discharge in atmospheric air Розрахунково-експериментальне визначення швидкості просування плазмового лідерного каналу імпульсного іскрового розряду в атмосферному повітрі Baranov, M. I. plasma leader channel electric pulse spark discharge air dielectric advance speed of a spark discharge front calculation experiment плазмовий лідерний канал електричний імпульсний іскровий розряд повітряний діелектрик швидкість просування фронту іскрового розряду розрахунок експеримент Goal. Calculation and experimental determination of middle speed vL of advancement of plasma leader channel of a pulse spark discharge in the long air interval of the double-electrode discharge system (DEDS) «tip-plane». Methodology. Bases of the theoretical electrical engineering and electrophysics, electrophysics bases of technique of ultra- and high-voltage and high pulse currents, bases of high-voltage pulse technique and measuring technique. Results. The close calculation and experimental method of determination of middle speed vL of advancement of plasma leader channel of an electric pulse spark discharge is offered in the long air interval of DEDS «tip-plane». This method is based on the offered calculation empiric formula for finding of the indicated speed vL and results of decoding of oscillograms of process of cut of in-use standard interconnect аperiodic pulse of over- and high-voltage of temporal shape of Tm/Тd≈200 μs/1990 μs of positive polarity at an electric hasp in indicated DEDS of long air intervals with their minimum length of lmin, numeral making 1,5 m (first case) and 3 m (second case). It is shown that middle speed vL of advancement in atmospheric air of front of plasma channel of positive leader of an electric pulse spark discharge in probed DEDS «tip-plane» for two considered applied cases at lmin=1,5 m of lmin=3 m numeral makes approximately vL≈(1±0,03)∙105 m/s. The found numeral value of this speed vL well coincides with the known experimental information for speed of advancement of vL≈105 m/s in atmospheric air of plasma channel of negative leader for a long storm spark discharge in DEDS «charged cloud-earth». It is set that for the standard interconnect аperiodic pulse of high- and ultra- voltage of temporal shape of Tm/Тd≈200 μs/1990 μs of positive polarity middle value of aggressive strength Ed of high pulse electric field in the air interval of probed DEDS «tip-plane» numeral makes minimum length of lmin=1,5 m near Ed1≈360,8 kV/m, and for his minimum length of lmin=3 m of − Ed2≈313,4 kV/m. Originality. The comfortable is developed in the use and reliable in practical realization technicians-and-engineers calculation and experimental method of research in the conditions of high-voltage electrophysics laboratory of difficult electro-discharge processes of development of leader hasp of long air intervals and determination of minimum electric durability of air insulation of electrical power engineering and electrophysics equipment on working voltage of classes of 330-1150 kV. Practical value. Application in area of industrial electrical power engineering and high-voltage pulse technique of the got numeral electrophysics results and offered calculation and experimental method of determination of middle speed vL of advancement in atmospheric air of plasma channel of leader of a long spark discharge will allow, from one side, to deepen our scientific knowledges about a long electric pulse spark discharge in an air dielectric, and, from other side, to develop high-voltage electrical power engineering and electrophysics devices with enhanceable reliability of their work both in normal operation and malfunctions. Надані результати розрахунково-експериментального визначення усередненої швидкості vL просування плазмового лідерного каналу електричного імпульсного іскрового розряду в довгому повітряному проміжку двоелектродної розрядної системи «вістря-площина» (для двох прикладних випадків при lmin=1,5 м і lmin=3 м), яка випробовує дію стандартного комутаційного аперіодичного імпульсу високої і надвисокої напруги часової форми Tm/Тd≈200 мкс/1990 мкс позитивної полярності. Запропонований метод чисельної оцінки величини vL в даній розрядній системі базується на використанні отриманої емпіричної формули та отриманні осцилограм процесу зрізу застосованих імпульсів над- і високої напруги при електричному пробої в ній довгих повітряних проміжків вказаної мінімальної довжини lmin. На основі запропонованої наближеної розрахункової формули і виконаних за допомогою потужного надвисоковольтного випробувального обладнання сильнострумових експериментів показано, що вказана швидкість vL розповсюдження в атмосферному повітрі переднього фронту позитивного лідера імпульсного іскрового розряду чисельно складає vL≈(1±0,03)∙105 м/с. Отримані розрахунково-експериментальні дані для усередненої швидкості vL просування в повітрі лідерного каналу імпульсного іскрового розряду добре узгоджуються з її прийнятими для грозових іскрових розрядів в атмосферному повітрі чисельними показниками. National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2024-02-24 Article Article Peer-reviewed Article application/pdf application/pdf http://eie.khpi.edu.ua/article/view/298664 10.20998/2074-272X.2024.2.07 Electrical Engineering & Electromechanics; No. 2 (2024); 48-54 Электротехника и Электромеханика; № 2 (2024); 48-54 Електротехніка і Електромеханіка; № 2 (2024); 48-54 2309-3404 2074-272X en uk http://eie.khpi.edu.ua/article/view/298664/291321 http://eie.khpi.edu.ua/article/view/298664/291322 Copyright (c) 2024 M. I. Baranov http://creativecommons.org/licenses/by-nc/4.0 |