INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID
Introduction. Earthing device electrical substation in modern conditions must meet both the requirements of electrical safety of people and animals, as well as electromagnetic compatibility requirements established her electrical equipment. These requirements are intended to address issues of protec...
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National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine
2015
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Electrical Engineering & Electromechanics |
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2016-03-09T07:43:40Z |
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substation electrical safety electromagnetic compatibility grounding device equivalent circuit single-phase short-circuit current distribution algorithm calculation analysis design 621.316.99 |
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substation electrical safety electromagnetic compatibility grounding device equivalent circuit single-phase short-circuit current distribution algorithm calculation analysis design 621.316.99 Nizhevskyi, V. I. Nizhevskyi, I. V. Ynoyatov, B. Nasryddyny, S. INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID |
| topic_facet |
substation electrical safety electromagnetic compatibility grounding device equivalent circuit single-phase short-circuit current distribution algorithm calculation analysis design 621.316.99 подстанция электробезопасность электромагнитная совместимость заземляющее устройство схема замещения ток однофазного короткого замыкания распределение алгоритм расчет анализ проектирование 621.316.99 підстанція електробезпека електромагнітна сумісність заземлюючий пристрій схема заміщення струм однофазного короткого замикання розподіл алгоритм розрахунок аналіз проектування 621.316.99 |
| format |
Article |
| author |
Nizhevskyi, V. I. Nizhevskyi, I. V. Ynoyatov, B. Nasryddyny, S. |
| author_facet |
Nizhevskyi, V. I. Nizhevskyi, I. V. Ynoyatov, B. Nasryddyny, S. |
| author_sort |
Nizhevskyi, V. I. |
| title |
INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID |
| title_short |
INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID |
| title_full |
INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID |
| title_fullStr |
INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID |
| title_full_unstemmed |
INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID |
| title_sort |
investigation and calculation of valleys of outgoing from substation grounding conductors for short-circuit in single-phase short of electrical grid |
| title_alt |
ИССЛЕДОВАНИЕ И РАСЧЕТ ДОЛИ СТЕКАЮЩЕГО С ЗАЗЕМЛИТЕЛЯ ПОДСТАНЦИИ ТОКА ПРИ ОДНОФАЗНОМ КОРОТКОМ ЗАМЫКАНИИ В ЭЛЕКТРИЧЕСКОЙ СЕТИ ИССЛЕДОВАНИЕ И РАСЧЕТ ДОЛИ СТЕКАЮЩЕГО С ЗАЗЕМЛИТЕЛЯ ПОДСТАНЦИИ ТОКА ПРИ ОДНОФАЗНОМ КОРОТКОМ ЗАМЫКАНИИ В ЭЛЕКТРИЧЕСКОЙ СЕТИ |
| description |
Introduction. Earthing device electrical substation in modern conditions must meet both the requirements of electrical safety of people and animals, as well as electromagnetic compatibility requirements established her electrical equipment. These requirements are intended to address issues of protection against surges and interference caused by lightning impulse currents and switching. Aim. To investigate the distribution of single-phase short-circuit current in the substation grounding devices. Task. On the basis of the proposed design scheme of substitution substation grounding device, consisting of a substation earthing system and «cable-supported» an algorithm for calculating the resistance of the grounding device substation and distribution of single-phase short-circuit current on the circuit elements. Method. Mathematical modeling and calculation engine. Results. On the basis of calculations and studies analyzed the current distribution of single-phase short-circuit between the substation earthing system and earthing «rope-reliance». Studies carried out for the actual range of variation of the circuit parameters, showed that the earthing resistance substation substantially affects the current distribution in the one-phase short circuit fault. For example, using the graph shows that with increasing resistance grounding system of "rope-supported" the proportion of single-phase short-circuit current flowing from the substation earthing increases, while the proportion of single-phase short-circuit current flowing from the grounding device supports decreases and vice versa. In addition, when rationing grounding systems at substations for the touch voltage is necessary to analyze all the possible modes of operation of the network, which is substationed. Conclusion. The results obtained are recommended to take into account in the design of grounding systems at substations. |
| publisher |
National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine |
| publishDate |
2015 |
| url |
http://eie.khpi.edu.ua/article/view/2074-272X.2015.2.14 |
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eiekhpieduua-article-420912016-03-09T07:43:40Z INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID ИССЛЕДОВАНИЕ И РАСЧЕТ ДОЛИ СТЕКАЮЩЕГО С ЗАЗЕМЛИТЕЛЯ ПОДСТАНЦИИ ТОКА ПРИ ОДНОФАЗНОМ КОРОТКОМ ЗАМЫКАНИИ В ЭЛЕКТРИЧЕСКОЙ СЕТИ ИССЛЕДОВАНИЕ И РАСЧЕТ ДОЛИ СТЕКАЮЩЕГО С ЗАЗЕМЛИТЕЛЯ ПОДСТАНЦИИ ТОКА ПРИ ОДНОФАЗНОМ КОРОТКОМ ЗАМЫКАНИИ В ЭЛЕКТРИЧЕСКОЙ СЕТИ Nizhevskyi, V. I. Nizhevskyi, I. V. Ynoyatov, B. Nasryddyny, S. substation electrical safety electromagnetic compatibility grounding device equivalent circuit single-phase short-circuit current distribution algorithm calculation analysis design 621.316.99 подстанция электробезопасность электромагнитная совместимость заземляющее устройство схема замещения ток однофазного короткого замыкания распределение алгоритм расчет анализ проектирование 621.316.99 підстанція електробезпека електромагнітна сумісність заземлюючий пристрій схема заміщення струм однофазного короткого замикання розподіл алгоритм розрахунок аналіз проектування 621.316.99 Introduction. Earthing device electrical substation in modern conditions must meet both the requirements of electrical safety of people and animals, as well as electromagnetic compatibility requirements established her electrical equipment. These requirements are intended to address issues of protection against surges and interference caused by lightning impulse currents and switching. Aim. To investigate the distribution of single-phase short-circuit current in the substation grounding devices. Task. On the basis of the proposed design scheme of substitution substation grounding device, consisting of a substation earthing system and «cable-supported» an algorithm for calculating the resistance of the grounding device substation and distribution of single-phase short-circuit current on the circuit elements. Method. Mathematical modeling and calculation engine. Results. On the basis of calculations and studies analyzed the current distribution of single-phase short-circuit between the substation earthing system and earthing «rope-reliance». Studies carried out for the actual range of variation of the circuit parameters, showed that the earthing resistance substation substantially affects the current distribution in the one-phase short circuit fault. For example, using the graph shows that with increasing resistance grounding system of "rope-supported" the proportion of single-phase short-circuit current flowing from the substation earthing increases, while the proportion of single-phase short-circuit current flowing from the grounding device supports decreases and vice versa. In addition, when rationing grounding systems at substations for the touch voltage is necessary to analyze all the possible modes of operation of the network, which is substationed. Conclusion. The results obtained are recommended to take into account in the design of grounding systems at substations. На основе расчетов и исследований проведен анализ распределения тока однофазного короткого замыкания между заземлителем подстанции и заземлителем системы «трос-опоры», представленных схемой замещения. Исследования, выполненные для реального диапазона изменений параметров схемы, показали, что сопротивление заземлителя подстанции существенно влияет на распределение тока однофазного короткого замыкания в схеме. Полученные результаты рекомендовано учитывать при проектировании заземляющих устройств подстанций. На основі розрахунків і досліджень проведено аналіз розподілу струму однофазного короткого замикання між заземлювачем підстанції та заземлювачем системи «трос-опори», представлених схемою заміщення . Дослідження, виконані для реального діапазону змін параметрів схеми, показали, що опір заземлювача підстанції суттєво впливає на розподіл струму однофазного короткого замикання в схемі. Отримані результати рекомендовано враховувати при проектуванні заземлюючих пристроїв підстанцій. National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2015-04-28 Article Article application/pdf http://eie.khpi.edu.ua/article/view/2074-272X.2015.2.14 10.20998/2074-272X.2015.2.14 Electrical Engineering & Electromechanics; No. 2 (2015); 72-75 Электротехника и Электромеханика; № 2 (2015); 72-75 Електротехніка і Електромеханіка; № 2 (2015); 72-75 2309-3404 2074-272X ru http://eie.khpi.edu.ua/article/view/2074-272X.2015.2.14/38521 Copyright (c) 2015 V. I. Nizhevskyi, I. V. Nizhevskyi, B. Ynoyatov, S. Nasryddyny https://creativecommons.org/licenses/by-nc/4.0 |