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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">probener</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. ПРОБЛЕМЫ ЭНЕРГЕТИКИ</journal-title><trans-title-group xml:lang="en"><trans-title>Power engineering: research, equipment, technology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-9903</issn><issn pub-type="epub">2658-5456</issn><publisher><publisher-name>Kazan State Power Engineering  University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30724/1998-9903-2021-23-1-146-155</article-id><article-id custom-type="elpub" pub-id-type="custom">probener-1767</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ЭЛЕКТРОТЕХНИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ELECTRICAL ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Цифровая система мониторинга повреждений на линиях электропередачи</article-title><trans-title-group xml:lang="en"><trans-title>Digital power lines faults monitoring system</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федотов</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedotov</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Федотов Александр Иванович – д-р техн. наук, профессор кафедры «Электрические станции им. В.К.Шибанова»</p><p>г. Казань</p></bio><bio xml:lang="en"><p>Alexander I. Fedotov</p><p>Kazan</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вагапов</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vagapov</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вагапов Георгий Валериянович – канд. техн. наук, доцент, старший научный сотрудник отдела «НИОКР» Инжиниринговый центр</p><p>г. Казань</p></bio><bio xml:lang="en"><p>Georgii V. Vagapov</p><p>Kazan</p></bio><email xlink:type="simple">vagapov@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абдуллазянов</surname><given-names>А. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdullazyanov</surname><given-names>A. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абдуллазянов Айнур Фоатович – аспирант кафедры «Электрические станции им. В.К.Шибанова»</p><p>г. Казань</p></bio><bio xml:lang="en"><p>Ainur F. Abdullazyanov</p><p>Kazan</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шаряпов</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Sharyapov</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шаряпов Ахмет Маратович – канд. техн. наук, доцент, доцент кафедра «Электропривода и электротехники»</p><p>г. Казань</p></bio><bio xml:lang="en"><p>Akhmet M. Sharyapov</p><p>Kazan</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Казанский государственный энергетический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan State Power Engineering University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Казанский национальный исследовательский технологический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan National Research Technological University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>13</day><month>05</month><year>2021</year></pub-date><volume>23</volume><issue>1</issue><fpage>146</fpage><lpage>155</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Федотов А.И., Вагапов Г.В., Абдуллазянов А.Ф., Шаряпов А.М., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Федотов А.И., Вагапов Г.В., Абдуллазянов А.Ф., Шаряпов А.М.</copyright-holder><copyright-holder xml:lang="en">Fedotov A.I., Vagapov G.V., Abdullazyanov A.F., Sharyapov A.M.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.energyret.ru/jour/article/view/1767">https://www.energyret.ru/jour/article/view/1767</self-uri><abstract><p>ЦЕЛЬ. Внедрение цифровой системы мониторинга однофазных замыканий на землю на воздушных линиях электропередачи в распределительных электрических сетях напряжением 10 кВ с изолированным режимом работы нейтрали. МЕТОДЫ. Реализация программного обеспечения осуществлена на основе использования математических моделей имитационного моделирования. РЕЗУЛЬТАТЫ. В статье представлена внедренная цифровая система мониторинга повреждений на воздушных линиях электропередачи напряжением 10 кВ c изолированным режимом работы нейтрали в действующих распределительных электрических сетях, основанная на выделении высших гармонических составляющих токов и напряжений, как один из технических вариантов решения проблемы определения однофазных замыканий на землю. Представлены особенности технических решений по выделению полезных сигналов, реализованных в цифровой системе мониторинга. Одновременно , приведены компоновочные решения по подключению системы мониторинга к вторичным измерительным цепям в распределительном устройстве 10 кВ подстанции 110/10 кВ. На основе выше обозначенных технических решений и ранее разработанных математических моделей, а также с учетом результатов серий натурных экспериментов по моделированию различных видов однофазных замыканий на землю в действующих распределительных электрических сетях, реализовано программное обеспечение дистанционного мониторинга распределительной электрической сети и выявления различных видов однофазных замыканий на землю. ЗАКЛЮЧЕНИЕ. Представлены основные функционалы разработанного программного обеспечения с описанием решений отдельных технических задач. Приведены дальнейшие направления исследований в области диагностики и мониторинга однофазных замыканий на землю в распределительных электрических сетях, выполненных воздушными линиями электропередачи на основе анализа высших гармонических составляющих.</p></abstract><trans-abstract xml:lang="en"><p>THE PURPOSE. paper show digital system for monitoring of single-phase earth faults on overhead power lines of 10 kV voltage in distribution power grids with an isolated neutral mode. METHODS. Digital system analyze frequency and amplitude of higher harmonics of voltage and current. The digital monitoring system includes the features of technical solutions for the selection of higher harmonics. RESULTS. Simultaneously, the paper shows the layout solutions for connecting a monitoring system to the control circuits on the10 kV side of 110/10 kV voltage substation. Software implemented for the far monitoring of the power grids and can detect of various types of single-phase earth faults. CONCLUSION. Software base on the mathematical models, as well as taking into account the results of a series of full-scale experiments of modeling various types of single-phase earth faults in the distribution power grids. The main functionalities the developed software presented for the description of solutions. Paper show further directions of research of the diagnostics and monitoring of single-phase earth faults in distribution power grids with overhead power lines based on the analysis of higher harmonic components.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>мониторинг</kwd><kwd>линии электропередачи</kwd><kwd>цифровая система</kwd><kwd>программное обеспечение</kwd><kwd>замыкание на землю</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Monitoring</kwd><kwd>power lines</kwd><kwd>digital system</kwd><kwd>software</kwd><kwd>earth fault</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Федотов А.И., Ахметвалеева Л.В., Басыров Р.Ш., и др. Нормирование амплитуды высших гармоник при определении фидера с однофазным замыканием на землю. Известия высших учебных заведений. Проблемы энергетики. 2020. Т. 22. № 1. 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