Применение смесей трансформаторного масла и биоразлагаемых эфиров в качестве изоляции высоковольтного оборудования

  • Марина Николаевна Лютикова
  • Андрей Михайлович Артемов
  • Александр Александрович Коновалов
  • Александр Викторович Ридель
Ключевые слова: минеральное изоляционное масло, силиконовая жидкость, синтетический сложный эфир, натуральный сложный эфир, смешанные диэлектрические жидкости, высоковольтное оборудование

Аннотация

В последние два десятилетия объектами пристального внимания многих исследований становятся синтетические и натуральные эфиры в качестве изоляционных жидкостей для высоковольтного оборудования. В отличие от минерального масла, сложноэфирные жидкости поддаются биологическому разложению, нетоксичны, безопасны для окружающей среды и здоровья человека, производятся из возобновляемого сырья и обладают высокой огнестойкостью. Несмотря на наличие на рынке коммерчески доступных сложноэфирных жидкостей, обладающих превосходными изоляционными свойствами, изготовители трансформаторного оборудования и эксплуатирующие организации пока не готовы к массовому переходу на биоразлагаемые сложноэфирные диэлектрические жидкости. Кроме того, огромное количество электрооборудования заполнено минеральным маслом, массовая замена которого на сложноэфирные диэлектрические жидкости обойдется энергетическим компаниям довольно дорого. Подходящим вариантом перехода от масла к эфирам может быть доливка сложноэфирных жидкостей в маслонаполненное оборудование (например во время ремонтов). Другим вариантом может быть полный слив трансформаторного масла и заполнение оборудования биоразлагаемым эфиром. При реализации любого из этих способов внутри оборудования будет смесь двух изоляционных жидкостей. Поэтому экспертами усиленно изучаются характеристики и поведение изоляционных смесей на основе минерального масла и другой диэлектрической жидкости (синтетический эфир, натуральный эфир или силиконовая жидкость). В статье дан обзор последних достижений в исследовании смесей, состоящих из минерального масла и других диэлектрических жидкостей и их свойств. Обсуждаются проблемы, связанные с эксплуатацией оборудования в случае его наполнения смешанными жидкостями.

Биографии авторов

Марина Николаевна Лютикова

кандидат хим. наук, ведущий инженер-химик – руководитель химической лаборатории Службы диагностики, филиал ПАО «Россети» – Ямало-Ненецкое ПМЭС, Ноябрьск, Россия.

Андрей Михайлович Артемов

директор, филиал ПАО «Россети» – Ямало-Ненецкое ПМЭС, Ноябрьск, Россия.

Александр Александрович Коновалов

руководитель Дирекции специальных проектов, ПАО «Россети», Москва, Россия.

Александр Викторович Ридель

кандидат техн. наук, старший научный сотрудник кафедры «Безопасность труда», Новосибирский государственный технический университет, Новосибирск, Россия.

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Исследование выполнено за счет гранта Российского научного фонда № 22-79-10198, https://rscf.ru/project/22-79-10198/.
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1. Rafiq M. et al. Sustainable Renewable and Environmental-Friendly Insulation Systems for High Voltages Applications. – Molecules, 2020, vol. 25 (17), DOI: 10.3390/molecules25173901.
2. Fofana I. 50 Years in the Development to Insulating Liquids. – IEEE Electrical Insulation Magazine, 2013, vol. 29 (5), pp. 13–25, DOI: 10.1109/MEI.2013.6585853.
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22. Chani S.A. et al. Dielectric Strength Improvement of Natural Ester Insulation Oil via Mixed Antioxidants: Taguchi Approach. – International Journal of Electrical and Computer Engineering (IJECE), 2017, vol. 7(2), pp. 650–658, DOI: 10.11591/ijece.v7i2.pp650-658.
23. Chani S.A. et al. Oxidation Stability Enhancement of Natural Ester Insulation Oil: Optimizing the Antioxidants Mixtures by Two-Level Factorial Design. – ARPN Journal of Engineering and Applied Sciences, 2017, vol. 12, No. 6, pp. 1694–1700.
24. Drabik J. et al. The Comparative Analysis of Prepared Mixtures of Crambe Abyssinica Seed Oil with Mineral and Synthetic Oil. – Tribologia, 2020, 291(3), pp. 15–21, DOI: 10.5604/01.3001.0014.4753.
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31. Rao U.M., Sood Y.R., Jarial R.K. Physiometric and FTIR Analysis of Cellulose Insulation in Blend of Mineral and Synthetic Ester Oils for Transformers. – IET Science, Measurement and Technology, 2017, vol. 11(3), pp. 297–304, DOI: 10.1049/iet-smt.2016.0334.
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33. Lyutikova M., Korobeinikov S., Konovalov A. Evaluation of the Properties of Mixture of Aromatic Mineral Oil and Synthetic Ester for High-Voltage Equipment. – IEEE Transactions on Dielectrics and Electrical Insulation, 2021, vol. 28(4), pp. 1282–1290, DOI: 10.1109/TDEI.2021.009636.
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The research was financially supported by the grant of the Russian Science Foundation No. 22-79-10198, https://rscf.ru/project/22-79-10198/.
Опубликован
2023-02-20
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Статьи