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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">10.30724/1998-9903-2021-23-4-3-13</article-id><article-id custom-type="elpub" pub-id-type="custom">probener-1878</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>ЭНЕРГЕТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>POWER ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Алгоритмы оценки эквивалентных сопротивлений внутризаводских электрических сетей</article-title><trans-title-group xml:lang="en"><trans-title>Algorithms for estimating equivalent resistances of in-plant electrical networks</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>Абдуллазянов</surname><given-names>Э. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdullazyanov</surname><given-names>E. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абдуллазянов Эдвард Юнусович – кандидат технических наук, ректор </p><p>г. Казань</p></bio><bio xml:lang="en"><p>Edvard Yu. Abdullazyanov – Rector</p><p>Kazan </p></bio><email xlink:type="simple">epp.kgeu@mail.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>Грачева</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Gracheva</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Грачева Елена Ивановна – доктор технических наук, профессор кафедры «Электроснабжение промышленных предприятий»</p><p>г. Казань</p></bio><bio xml:lang="en"><p>Elena I. Gracheva</p><p>Kazan </p></bio><email xlink:type="simple">epp.kgeu@mail.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>Горлов</surname><given-names>A. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorlov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Горлов Алексей Николаевич – кандидат технических наук, доцент, зав. кафедрой «Электроснабжение»</p><p>г. Курск</p></bio><bio xml:lang="en"><p>Alexey N. Gorlov</p><p>Kursk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шакурова</surname><given-names>З. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Shakurova</surname><given-names>Z. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шакурова Зумейра Мунировна – кандидат педагогических наук, доцент кафедры «Электроснабжение промышленных предприятий»</p><p>г. Казань</p></bio><bio xml:lang="en"><p>Zumeyra M. Shakurova</p><p>Kazan</p></bio><email xlink:type="simple">epp.kgeu@mail.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>Табачникова</surname><given-names>Т В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tabachnikova</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Табачникова Татьяна Владимировна - кандидат технических наук, доцент, зав. кафедрой «Элетро- и теплоэнергетики»</p><p>г. Альметьевск</p></bio><bio xml:lang="en"><p>Tatyana V. Tabachnikova </p><p>Almetyevsk </p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Валтчев</surname><given-names>С.</given-names></name><name name-style="western" xml:lang="en"><surname>Valtchev</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Stanimir Valtchev</p><p>Sofia</p></bio><bio xml:lang="en"><p>Stanimir Valtchev</p><p>Sofia</p></bio><xref ref-type="aff" rid="aff-4"/></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>Юго-Западный государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>South-West State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Альметьевский государственный нефтяной институт</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Almetyevsk State Oil Institute</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>New University of Lisbon</institution><country>Болгария</country></aff><aff xml:lang="en"><institution>New University of Lisbon</institution><country>Bulgaria</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>11</day><month>10</month><year>2021</year></pub-date><volume>23</volume><issue>4</issue><fpage>3</fpage><lpage>13</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Абдуллазянов Э.Ю., Грачева Е.И., Горлов A.Н., Шакурова З.М., Табачникова Т.В., Валтчев С., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Абдуллазянов Э.Ю., Грачева Е.И., Горлов A.Н., Шакурова З.М., Табачникова Т.В., Валтчев С.</copyright-holder><copyright-holder xml:lang="en">Abdullazyanov E.Y., Gracheva E.I., Gorlov A.N., Shakurova Z.M., Tabachnikova T.V., Valtchev S.</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/1878">https://www.energyret.ru/jour/article/view/1878</self-uri><abstract><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Исследование степени влияния характеристик внутризаводских электрических сетей на достоверность результатов в алгоритмах оценки эквивалентных сопротивлений.</p></sec><sec><title>МЕТОДЫ</title><p>МЕТОДЫ. При решении поставленной задачи проведено исследование радиальной схемы электроснабжения участка инструментального цеха с вычислением и моделированием эквивалентных и эталонных значений сопротивлений схемы. Разработаны алгоритмы и методика оценки значений эквивалентных сопротивлений с учетом основных технических характеристик внутризаводских сетей.</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. Проанализированы данные вычислений значений эквивалентного сопротивления схем с оценкой фактора нагрева проводников и фактора сопротивлений контактных аппаратов. Выявлены доли влияния сопротивлений контактной аппаратуры и линий с учетом числа приемников электроэнергии, присоединенных к силовому пункту, на значение эквивалентных сопротивлений схемы.</p></sec><sec><title>ЗАКЛЮЧЕНИЕ</title><p>ЗАКЛЮЧЕНИЕ. В статье разработаны алгоритмы оценки значений эквивалентных сопротивлений внутризаводских схем электроснабжения. Представлены номограммы, учитывающие число и длину линий схемы с выделением зоны учета сопротивлений контактной аппаратуры в эквивалентных сопротивлениях схем. Полученные алгоритмы и результаты рекомендуется использовать для уточнения величины потерь мощности и электрической энергии во внутризаводских сетях, что позволит повысить достоверность расчетов. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>THE PURPOSE</title><p>THE PURPOSE. Investigation of the degree of influence of the characteristics of in- plant electrical networks on the reliability of the results in the algorithms for estimating equivalent resistances. METHODS. When solving this problem, a study of the radial power supply scheme of the tool shop section was carried out with the calculation and modeling of equivalent and reference values of the circuit resistances. Algorithms and methods for estimating the values of equivalent resistances have been developed, taking into account the main technical characteristics of in-plant networks.</p></sec><sec><title>RESULTS</title><p>RESULTS. The data of calculations of the equivalent resistance values of the circuits with an assessment of the heating factor of the conductors and the resistance factor of the contact devices are analyzed. The proportions of the influence of the resistances of the contact equipment and lines, taking into account the number of electric power receivers connected to the power point, on the value of the equivalent resistances of the circuit are revealed. </p></sec><sec><title>CONCLUSION</title><p>CONCLUSION. The article develops algorithms for estimating the values of equivalent resistances of in-plant power supply circuits. Nomograms are presented that take into account the number and length of the circuit lines with the allocation of the zone of accounting for the resistances of contact equipment in the equivalent resistances of the circuits. The obtained algorithms and results are recommended to be used to clarify the amount of power and electrical energy losses in the intra- factory networks, which will increase the reliability of calculations.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>алгоритмы</kwd><kwd>модели</kwd><kwd>внутризаводские схемы</kwd><kwd>эквивалентное сопротивление</kwd><kwd>характеристики оборудования</kwd></kwd-group><kwd-group xml:lang="en"><kwd>algorithms</kwd><kwd>models</kwd><kwd>in-plant circuits</kwd><kwd>equivalent resistance</kwd><kwd>equipment characteristics</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Публикация выполнена при финансовой поддержке государственного задания Министерства высшего образования и науки Российской Федерации, проект № 0851-2020-0032 «Исследование алгоритмов, моделей и методов повышения эффективности функционирования сложных технических систем»</funding-statement><funding-statement xml:lang="en">The publication was carried out with the financial support of the state task of the Ministry of Higher Education and Science of the Russian Federation, project No. 0851-2020- 0032 «Research of algorithms, models and methods for improving the efficiency of complex technical systems».</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Грачева Е.И., Наумов О.В. 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