probenerИзвестия высших учебных заведений. ПРОБЛЕМЫ ЭНЕРГЕТИКИPower engineering: research, equipment, technology1998-99032658-5456Kazan State Power Engineering University10.30724/1998-9903-2022-24-1-151-163probener-2161Research ArticleПРИБОРОСТРОЕНИЕ, МЕТРОЛОГИЯ И ИНФОРМАЦИОННО- ИЗМЕРИТЕЛЬНЫЕ ПРИБОРЫ И СИСТЕМЫINSTRUMENT-MAKING, METROLOGY AND INFORMATION-MEASURING INSTRUMENTS AND SYSTEMSОсобенности мониторинга сверхбольших частичных разрядов в высоковольтныхFeatures of monitoring extra large partial discharge in high voltage insulatorshttps://orcid.org/0000-0003-1344-7453ИвановД. А.IvanovD. A.

Иванов Дмитрий Алексеевич – кандидат технических наук, доцент, доцент кафедры «Промышленная электроника и светотехника»

Dmitry A. Ivanov

ivanov.da@kgeu.ruКазанский государственный энергетический университетРоссияKazan State Power Engineering UniversityRussian Federation202224052022241151163Copyright © Иванов Д.А., 20222022Иванов Д.А.Ivanov D.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.energyret.ru/jour/article/view/2161

ЦЕЛЬЮ описанного исследования является изучение влияния частичных разрядов на физическое состояние обнаруженных ранее дефектов в высоковольтных изоляторах. В статье описаны результаты, полученные комплексом бесконтактных методов для проведения дистанционной диагностики высоковольтных изоляторов под рабочим напряжением в процессе эксплуатации с использованием двухканального устройства дистанционной диагностики.

МЕТОД измерения основан на регистрации частичных разрядов электромагнитным и акустическим датчиками. С помощью электромагнитного и акустического датчиков бесконтактно были изучены характеристики частичных разрядов в высоковольтных полимерных и фарфоровых изоляторах в лабораторных и полевых условиях. Разработанная система мониторинга во многом основана на обнаруженном эффекте сверхбольших ЧР, создающих накопление индуцированных электрических зарядов на диэлектрических поверхностях дефектов, которые образуют электрические поля с напряженностью, превосходящей напряженность приложенных полей к высоковольтным изоляторам.

РЕЗУЛЬТАТЫ проведенных исследований позволяют судить о возможности промышленной применимости предложенного способа бесконтактной дистанционной диагностики состояния высоковольтных изоляторов под рабочим напряжением. Использование акустической регистрации частичных разрядов при контроле дефектов позволяет более точно определять общее количество ЧР и их фазовое распределение Электромагнитное детектирование частичных разрядов позволяет успешно оценивать интенсивность и количество сверхбольших ЧР, вид и размеры больших дефектов.

THE PURPOSE of the described study is to study the effect of partial discharges on the physical state of previously detected defects in high-voltage insulators. The article describes the results obtained by a complex of non-contact methods for remote diagnostics of high-voltage insulators under operating voltage during operation using a two-channel remote diagnostic device.

METHOD is based on the registration of partial discharges by electromagnetic and acoustic sensors. With the help of electromagnetic and acoustic sensors, the characteristics of partial discharges in high-voltage polymer and porcelain insulators were studied without contact in laboratory and field conditions. The developed monitoring system is largely based on the discovered effect of extra large PDs, which create an accumulation of induced electric charges on the dielectric surfaces of defects, which form electric fields with a strength exceeding the strength of the applied fields to high-voltage insulators.

THE RESULTS of experimental studies confirm the possibility of industrial applicability of the proposed method for non-contact remote diagnostics of the state of high-voltage insulators under operating voltage. The use of acoustic registration of partial discharges in the control of defects makes it possible to more accurately determine the total number of PDs and their phase distribution.

дистанционная диагностикачастичные разрядынеразрушающий контрольвысоковольтные изоляторыдефекты изоляциисистема мониторингаremote diagnosticspartial dischargesnon-destructive testinghigh-voltage insulatorsinsulation defectsmonitoring systemИсследования выполнены при финансовой поддержке Министерства науки и высшего образования Российской Федерации в рамках госзадания на выполнение НИР по теме «Распределенные автоматизированные системы мониторинга и диагностики технического состояния воздушных линий электропередачи и подстанций на основе технологии широкополосной передачи данных через линии электропередач и промышленного интернета вещей» (соглашение №075-03-2022-151 от 14.01.2022)The research work was carried out under the financial support of the Ministry of Science and Higher Education within the scope of the state Research and Development task no. 075-03-2022-151 of 14.01.2022 «Distributed automated systems of monitoring and diagnostics for technical condition of overhead power lines and substations based on broadband data transmission technology through power lines and the industrial Internet of Things»ReferencesСитников В.Ф., Скопинцев В.А. 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The authors declare that there are no conflicts of interest present.