probenerИзвестия высших учебных заведений. ПРОБЛЕМЫ ЭНЕРГЕТИКИPower engineering: research, equipment, technology1998-99032658-5456Kazan State Power Engineering University10.30724/1998-9903-2023-25-3-65-80probener-2680Research ArticleЭЛЕКТРОТЕХНИЧЕСКИЕ КОМПЛЕКСЫ И СИСТЕМЫELECTROTECHNICAL COMPLEXES AND SYSTEMSВлияние вида графиков нагрузок на срок эксплуатации трансформаторов напряжением 33/11 Кв подстанции «Кабун-1» (Сирийская Арабская Республика)Influence of the type of load graphs on the service life transformers 33/11 Kv at substation "Kabun-1" (Syrian Arab Republic)АбдуллазяновЭ. Ю.AbdullazyanovE. Yu.

г. Казань

Edward Y. Abdullazyanov – Rector

Kazan 

https://orcid.org/0000-0002-8355-189XГрачеваЕ. И.GrachevaE. I.

г. Казань

Elena I. Gracheva – Doctor of Technical Sciences, Professor of the University of Electric Power Industry

Kazan

АльзаккарА.AlzakkarA.

г. Казань

Ahmad Alzakkar – Master of Technology and Technology, graduate student of the Institute of Electric Power Engineering

Kazan

Ahmadalzakkar86@gmail.comValtchevS.ValtchevS.

Faculty of Sciences and Technology

2829-516 Campus Caparica, Lisbon

Stanimir Valtchev – Associate Professor

Faculty of Sciences and Technology

2829-516 Campus Caparica, Lisbon

 

 

МестниковН. П.MestnikovN.

г. Якутск

Nikolai P. Mestnikov

Yakutsk

Казанский государственный энергетический университетРоссияKazan State Power Engineering UniversityRussian FederationUniversity NOVA of LisbonПортугалияUniversity NOVA of LisbonPortugalСеверо-Восточный федеральный университет им. М.К. АммосоваРоссияNorth-Eastern Federal University named M.K. AmmosovRussian Federation2023180820232536580Copyright © Абдуллазянов Э.Ю., Грачева Е.И., Альзаккар А., Valtchev S., Местников Н.П., 20232023Абдуллазянов Э.Ю., Грачева Е.И., Альзаккар А., Valtchev S., Местников Н.П.Abdullazyanov E.Y., Gracheva E.I., Alzakkar A., Valtchev S., Mestnikov N.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/2680

Силовые трансформаторы являются одними из основных элементов систем электроснабжения, необходимых для надёжного обеспечения потребителей электроэнергией. Как известно, величина допустимой нагрузки трансформаторов определяется значением допустимого нагрева элементов конструкции, от которого зависит период срока службы. Достоверные данные о техническом состоянии элементов конструкции трансформаторов являются определяющей информацией для принятия решений по замене и обслуживанию трансформаторов. ЦЕЛЬ. Целью работы является оценка срока службы трансформаторов подстанции «Кабун-1» (Сирийская Арабская Республика) при различных вариантах вида графика потребляемой мощности нагрузки (исходный; первой; второй; третий). МЕТОДЫ. Для оценки срока службы трансформаторов использованы методы оценки статистических параметров графиков нагрузок потребителей, коэффициентов загрузки и температуры нагрева обмоток трансформаторов мощностью Sном.тр= 20 мВА, напряжением 33/11 кВ подстанции «Кабун-1». РЕЗУЛЬТАТЫ. Определены основные статистические параметры характеристик исходных и предлагаемых вариантов графиков мощности нагрузки (активной, реактивной и полной) за сутки трансформаторов, основным электропотребителем которых является Прядильно-ткацкая фабрика. Разработаны аппроксимирующие функции суточных графиков мощностей нагрузок трансформаторов, от которых получает питание Прядильно-ткацкая фабрика (первое и второе приближение). Доказано, что при рассматриваемых вариантах сдвига времени начала работы электропотребителей -при третьем- наибольшая мощность нагрузки снижается на 12,8%, вариация нагрузок снижается с 0,33 до 0,17 по отношению ко второму варианту для подразделений Прядильно-ткацкой фабрики. Установлено, что для всех рассматриваемых вариантов среднее значение мощности нагрузок трансформаторов подстанции «Кабун-1» постоянно. Определены законы изменения относительного значения срока службы трансформаторов при внедрении различных технических мероприятий.

Power transformers are one of the main components of power supply systems needed to reliably supply electricity to consumers. As we know, the value of the allowable load of transformers is determined by the value of the allowable heating of structural elements, on which the service life of transformer period depends. Reliable data on the technical condition of the structural elements of transformers is the decisive information for making decisions on the replacement and maintenance of transformers. METHODS. To assess the service life of transformers, methods were used to evaluate the statistical parameters of consumer load graphs, load factors and the heating temperature of the windings of transformers with a capacity of Sn.T = 20 MVA, a voltage of 33/11 kV at substation Kabun-1. THE AIM. The aim of the work is to evaluate the service life of the transformers at substation Kabun-1 (Syrian Arab Republic) with various options for the type of load power consumption graph (first; second; third). THE RESULTS. The main statistical parameters of the characteristics of the original and proposed options of load power graphs (active, reactive and apparent) per day of transformers, the main electrical consumer of which is the spinning and weaving factory, are determined. Approximating functions of daily graphs of power loads of transformers, from which the spinning and weaving factory receives power (first and second approximations), have been developed. It is proved that with the considered options for shifting the time of the start of work of electrical consumers - with the third option -the maximum load power is reduced by 12.8%, load variation is reduced from 0.33 to 0.17 in relation to the second option for the subdivisions of the spinning and weaving factory. It has been established that for all the considered options, the average value of the load power of the transformers at substation Kabun-1 is constant. The laws of change in the relative value of the service life of transformers during the implementation of various technical measures are determined.

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The authors declare that there are no conflicts of interest present.