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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Bulletin of scientific research results</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Bulletin of scientific research results</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Бюллетень результатов научных исследований</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">2223-9987</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">89255</article-id>
   <article-id pub-id-type="doi">10.20295/2223-9987-2024-03-24-33</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Проблематика транспортных систем</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>PROBLEMATIC OF TRANSPORT SYSTEM</subject>
    </subj-group>
    <subj-group>
     <subject>Проблематика транспортных систем</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Dependence of rail potential on the resistance of the traction substation grounding device and rail line parameters</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Зависимость потенциала на рельсах от сопротивления заземляющего устройства тяговой подстанции и параметров рельсовой линии</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Башаркин</surname>
       <given-names>Максим Викторович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Basharkin</surname>
       <given-names>Maksim Viktorovich</given-names>
      </name>
     </name-alternatives>
     <email>m.basharkin@samgups.ru</email>
     <bio xml:lang="ru">
      <p>кандидат технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Приволжский государственный университет путей сообщения</institution>
     <city>Самара</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Volga State Transport University</institution>
     <city>Samara</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2024-10-03T15:23:41+03:00">
    <day>03</day>
    <month>10</month>
    <year>2024</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2024-10-03T15:23:41+03:00">
    <day>03</day>
    <month>10</month>
    <year>2024</year>
   </pub-date>
   <volume>2024</volume>
   <issue>3</issue>
   <fpage>24</fpage>
   <lpage>33</lpage>
   <history>
    <date date-type="received" iso-8601-date="2024-10-02T00:00:00+03:00">
     <day>02</day>
     <month>10</month>
     <year>2024</year>
    </date>
   </history>
   <self-uri xlink:href="https://atjournal.ru/en/nauka/article/89255/view">https://atjournal.ru/en/nauka/article/89255/view</self-uri>
   <abstract xml:lang="ru">
    <p>Цель: провести анализ зависимости потенциала на рельсах от координаты пути в условиях различных значений проводимости заземляющего устройства тяговой подстанции (g0 = 0 См, 10 См, 25 См, 50 См). Методы: анализ производился на разработанной схеме замещения участка тяговой рельсовой сети (ТРС) с помощью метода узловых потенциалов. Расчет реализован в математическом пакете Mathcad 15. Выбор исходных данных осуществлен с учетом значений, установленных в действующей нормативной документации. Результаты: разработана эквивалентная схема замещения тяговой рельсовой сети на двухпутном участке, в которой каждый однородный участок рельсовой линии заменяется эквивалентным П-образным четырехполюсником. Это позволяет преобразовать электрическую цепь с распределенными параметрами в цепь с сосредоточенными параметрами. При необходимости имитации на участке поперечной либо продольной асимметрии тягового тока такой участок замещается трехпроводной схемой замещения, в которой учитывается земляной провод. Для повышения точности результатов моделирования учтены междупутные перемычки, а число узловых потенциалов увеличено до 7. Установлено, что наибольшее по модулю значение напряжения на рельсах наблюдается вблизи тяговой подстанции. Определено, что при увеличении проводимости заземляющего устройства величина напряжения на рельсах вблизи тяговой подстанции уменьшается. Практическая значимость: определены значения потенциала «рельс — земля» при различных значениях проводимости заземляющего устройства тяговой подстанции для путей обоих направлений движения — четного и нечетного путей. Установлено значение проводимости заземляющего устройства тяговой подстанции, при котором нахождение персонала на рельсах вблизи тяговой подстанции безопасно. Полученные результаты могут быть рекомендованы к практическому использованию на железнодорожном транспорте.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Purpose: to analyse the dependence of the potential on rails on the track coordinate at different values of conductivity of the grounding device of the traction substation (g0 = 0 S, 10 S, 25 S, 50 S). Methods: the analysis was carried out on the developed substitution diagram of the traction rail network section using the method of nodal potentials. The calculation was implemented in Mathcad 15 mathematical package. Selection of initial data was carried out taking into account the values established in the current normative documentation. Results: an equivalent substitution scheme of the traction rail network on a double-track section has been developed, in which each homogeneous section of the rail line is replaced by an equivalent U-shaped quadrupole. This allows to transform an electric circuit with distributed parameters into a circuit with concentrated parameters. If it is necessary to simulate transverse or longitudinal asymmetry of traction current in a section, such a section is replaced by a three-wire substitution diagram in which the earth conductor is taken into account. To improve the accuracy of the modelling results, the inter-track jumpers are taken into account, and the number of nodal potentials is increased to 7. It is established that the highest modulus value of voltage on rails is observed near the traction substation. It has been determined that the voltage value on rails near the traction substation decreases when the conductivity of the earthing device increases. Practical significance: values of rail-ground potential at different values of conductivity of grounding device of traction substation for tracks of both directions of traffic — even and odd tracks — are determined. The value of conductivity of the traction substation grounding device at which it is safe for the personnel to stay on the rails near the traction substation has been determined. The obtained results can be recommended for practical use in railway transport.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>тяговая рельсовая сеть</kwd>
    <kwd>рельсовая линия</kwd>
    <kwd>потенциал на рельсах</kwd>
    <kwd>заземляющее устройство</kwd>
    <kwd>тяговый ток</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>traction rail network</kwd>
    <kwd>rail line</kwd>
    <kwd>potential on rails</kwd>
    <kwd>grounding device</kwd>
    <kwd>traction current</kwd>
   </kwd-group>
  </article-meta>
 </front>
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