INFLUENCE OF CORONARY DISCHARGE PARAMETERS ON THE EFFICIENCY OF LIGHTNING PROTECTION SYSTEM ELEMENTS
Purpose. Investigation of the formation of space charge in the region of the apex of lighting rod, under the action of the electric field of a thunderstorm cloud, to evaluate the efficiency of elements of lighting protection systems. Methodology. We have applied the mathematical simulation of electr...
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| Дата: | 2017 |
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| Формат: | Стаття |
| Мова: | English Ukrainian |
| Опубліковано: |
National Technical University "Kharkiv Polytechnic Institute" and State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine”
2017
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| Онлайн доступ: | http://eie.khpi.edu.ua/article/view/2074-272X.2017.3.07 |
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| Назва журналу: | Electrical Engineering & Electromechanics |
Репозитарії
Electrical Engineering & Electromechanics| id |
eiekhpieduua-article-105489 |
|---|---|
| record_format |
ojs |
| institution |
Electrical Engineering & Electromechanics |
| collection |
OJS |
| language |
English Ukrainian |
| topic |
rod lightning terminal pulse corona electric field intensity of thunderstorm cloud corona current streamer speed 621.31.048.015 стержневой молниеприемник импульсная корона напряженность электрического поля грозового облака ток короны скорость стримера 621.31.048.015 |
| spellingShingle |
rod lightning terminal pulse corona electric field intensity of thunderstorm cloud corona current streamer speed 621.31.048.015 стержневой молниеприемник импульсная корона напряженность электрического поля грозового облака ток короны скорость стримера 621.31.048.015 Chernukhin, A. Yu. INFLUENCE OF CORONARY DISCHARGE PARAMETERS ON THE EFFICIENCY OF LIGHTNING PROTECTION SYSTEM ELEMENTS |
| topic_facet |
rod lightning terminal pulse corona electric field intensity of thunderstorm cloud corona current streamer speed 621.31.048.015 стержневой молниеприемник импульсная корона напряженность электрического поля грозового облака ток короны скорость стримера 621.31.048.015 |
| format |
Article |
| author |
Chernukhin, A. Yu. |
| author_facet |
Chernukhin, A. Yu. |
| author_sort |
Chernukhin, A. Yu. |
| title |
INFLUENCE OF CORONARY DISCHARGE PARAMETERS ON THE EFFICIENCY OF LIGHTNING PROTECTION SYSTEM ELEMENTS |
| title_short |
INFLUENCE OF CORONARY DISCHARGE PARAMETERS ON THE EFFICIENCY OF LIGHTNING PROTECTION SYSTEM ELEMENTS |
| title_full |
INFLUENCE OF CORONARY DISCHARGE PARAMETERS ON THE EFFICIENCY OF LIGHTNING PROTECTION SYSTEM ELEMENTS |
| title_fullStr |
INFLUENCE OF CORONARY DISCHARGE PARAMETERS ON THE EFFICIENCY OF LIGHTNING PROTECTION SYSTEM ELEMENTS |
| title_full_unstemmed |
INFLUENCE OF CORONARY DISCHARGE PARAMETERS ON THE EFFICIENCY OF LIGHTNING PROTECTION SYSTEM ELEMENTS |
| title_sort |
influence of coronary discharge parameters on the efficiency of lightning protection system elements |
| title_alt |
ВЛИЯНИЕ ПАРАМЕТРОВ КОРОННОГО РАЗРЯДА НА ЭФФЕКТИВНОСТЬ ЭЛЕМЕНТОВ СИСТЕМ МОЛНИЕЗАЩИТЫ |
| description |
Purpose. Investigation of the formation of space charge in the region of the apex of lighting rod, under the action of the electric field of a thunderstorm cloud, to evaluate the efficiency of elements of lighting protection systems. Methodology. We have applied the mathematical simulation of electromagnetic field distribution on the top of metal rod by different forms. As a mathematical apparatus, we use the finite element method. We considered two forms of the rod section: round and square. The round (cylindrical) rod has a sharp apex. The square rod has a flat top. The experimental study investigates the features of corona discharge formation. A high-voltage test equipment is created an electric field. Experiments carried out using a configuration consisting a potential plate and vertical rod electrode on grounded plate. The electric field strength varied from 1 kVm-1 to 100 kVm-1. This range corresponds to the thunderstorm condition. Results. We have obtained a correlation between the corona current and the strength of the electric field for various shapes of the rod top. The results of experimental studies confirmed the correctness of the conclusions of theoretical estimates. We show that the time parameters of streamer current pulses vary by no more than 30%, but a streamer charge increase to three time with increasing electric field strength. We proposed and applied a method for measuring the velocity of motion of a streamer in the discharge gap. As a result, it is established that the streamer speed is nonlinear in time. For a discharge gap of 1.2 m, the speed varies from 1.8∙104 m/s to 1.1∙106 m/s. Originality. For the first time, we have carried out a complex of studies of corona discharge parameters from lightning protector rod to apply for the certification procedure of ESE terminals. Practical value. Based on the set of obtained results, it is obviously that the standard NF C 17-102:2011 will not be introduced as a national standard of Ukraine before full introduction of scientifically justified data will be include into the requirements of the standard. |
| publisher |
National Technical University "Kharkiv Polytechnic Institute" and State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine” |
| publishDate |
2017 |
| url |
http://eie.khpi.edu.ua/article/view/2074-272X.2017.3.07 |
| work_keys_str_mv |
AT chernukhinayu influenceofcoronarydischargeparametersontheefficiencyoflightningprotectionsystemelements AT chernukhinayu vliânieparametrovkoronnogorazrâdanaéffektivnostʹélementovsistemmolniezaŝity |
| first_indexed |
2024-06-01T14:38:21Z |
| last_indexed |
2024-06-01T14:38:21Z |
| _version_ |
1800669969099259904 |
| spelling |
eiekhpieduua-article-1054892017-08-21T18:01:34Z INFLUENCE OF CORONARY DISCHARGE PARAMETERS ON THE EFFICIENCY OF LIGHTNING PROTECTION SYSTEM ELEMENTS ВЛИЯНИЕ ПАРАМЕТРОВ КОРОННОГО РАЗРЯДА НА ЭФФЕКТИВНОСТЬ ЭЛЕМЕНТОВ СИСТЕМ МОЛНИЕЗАЩИТЫ Chernukhin, A. Yu. rod lightning terminal pulse corona electric field intensity of thunderstorm cloud corona current streamer speed 621.31.048.015 стержневой молниеприемник импульсная корона напряженность электрического поля грозового облака ток короны скорость стримера 621.31.048.015 Purpose. Investigation of the formation of space charge in the region of the apex of lighting rod, under the action of the electric field of a thunderstorm cloud, to evaluate the efficiency of elements of lighting protection systems. Methodology. We have applied the mathematical simulation of electromagnetic field distribution on the top of metal rod by different forms. As a mathematical apparatus, we use the finite element method. We considered two forms of the rod section: round and square. The round (cylindrical) rod has a sharp apex. The square rod has a flat top. The experimental study investigates the features of corona discharge formation. A high-voltage test equipment is created an electric field. Experiments carried out using a configuration consisting a potential plate and vertical rod electrode on grounded plate. The electric field strength varied from 1 kVm-1 to 100 kVm-1. This range corresponds to the thunderstorm condition. Results. We have obtained a correlation between the corona current and the strength of the electric field for various shapes of the rod top. The results of experimental studies confirmed the correctness of the conclusions of theoretical estimates. We show that the time parameters of streamer current pulses vary by no more than 30%, but a streamer charge increase to three time with increasing electric field strength. We proposed and applied a method for measuring the velocity of motion of a streamer in the discharge gap. As a result, it is established that the streamer speed is nonlinear in time. For a discharge gap of 1.2 m, the speed varies from 1.8∙104 m/s to 1.1∙106 m/s. Originality. For the first time, we have carried out a complex of studies of corona discharge parameters from lightning protector rod to apply for the certification procedure of ESE terminals. Practical value. Based on the set of obtained results, it is obviously that the standard NF C 17-102:2011 will not be introduced as a national standard of Ukraine before full introduction of scientifically justified data will be include into the requirements of the standard. Приведены результаты теоретических и экспериментальных исследований процессов формирования объемного заряда в области вершины стержневого молниеприемника. Рассмотрены особенности формирования стримерной короны на стержневых молниеприемниках с различными конфигурациями вершины в электрическом поле грозового облака. Установлены зависимости силы тока короны от напряженности электрического поля и высоты для каждого варианта стержня. Показано, что при этом временные параметры импульсов тока стримера меняются не более чем на 30%, а заряд стримера, и как следствие, сила тока короны увеличиваются по мере роста напряженности электрического поля. Предложено метод измерения скорости продвижения стримера. Метод основан на одновременном измерении напряжения и тока на разрядном промежутке. Результаты предлагается учесть при сертификации молниеприемников. National Technical University "Kharkiv Polytechnic Institute" and State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine” 2017-06-29 Article Article application/pdf application/pdf http://eie.khpi.edu.ua/article/view/2074-272X.2017.3.07 10.20998/2074-272X.2017.3.07 Electrical Engineering & Electromechanics; No. 3 (2017); 47-56 Электротехника и Электромеханика; № 3 (2017); 47-56 Електротехніка і Електромеханіка; № 3 (2017); 47-56 2309-3404 2074-272X en uk http://eie.khpi.edu.ua/article/view/2074-272X.2017.3.07/100695 http://eie.khpi.edu.ua/article/view/2074-272X.2017.3.07/100696 Copyright (c) 2017 A. Yu. Chernukhin https://creativecommons.org/licenses/by-nc/4.0 |