Кафедра "Передача електричної енергії"

Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/7633

Офіційний сайт кафедри http://web.kpi.kharkov.ua/pee

Кафедра "Передача електричної енергії" була заснована у березні 1930 року академіком АН України Василем Михайловичем Хрущовим. У Технологічному інституті викладання електротехніки вперше було розпочато ще у 1893 році.

Кафедра входить до складу Навчально-наукового інституту енергетики, електроніки та електромеханіки Національного технічного університету "Харківський політехнічний інститут".

У складі науково-педагогічного колективу кафедри працюють: 3 доктора технічних наук, 12 кандидатів технічних наук ; 2 співробітника мають звання професора, 9 – доцента, 1 – старшого наукового співробітника.

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Фільтри

2020 - 20232

Налаштування

Автор: search.filters.author.Kulyk, Oleksii SerhiiovychКлючові слова: search.filters.subject.oil-filled equipment

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  • Ескіз
    Документ
    Method of fault-type recognition based on the dissolved gas analysis using a set of diagnostic criteria
    (The Institution of Engineering and Technology, 2023) Shutenko, Oleg Volodymyrovych; Kulyk, Oleksii Serhiiovych
    This paper proposes a method for recognising the fault type using a set of diagnostic criteria. Existing approaches to the interpretation of dissolved gas analysis (DGA) results usually rely on single diagnostic criteria. The proposed method solves the problems of incomplete use of diagnostic information and discrepancies in the norms and criteria for recognising the same fault inherent in the existing methods. The feature of the method is the analysis of the compliance of the DGA results of the diagnosed equipment with the ones of the equipment with a confirmed diagnosis from the fault database. This approach outperforms the existing methods in the number of faults recognised, allowing a wider range of faults to be detected, including combined faults. In addition, the method provides an opportunity to identify possible causes and localise the fault. This feature is unique and provides a significant advantage when interpreting DGA results. The proposed method demonstrates significantly higher accuracy (100%) in recognising various fault types, including combined faults, in comparison to existing methods (about 50%). The proposed method has a 60% success rate in determining the cause and location of a fault, but this figure depends on the database with faults of various types used.
  • Ескіз
    Документ
    Analysis of gas content in oil-filled equipment with low energy density discharges
    (School of Electrical Engineering and Informatics, Institut Teknologi Bandung, 2020) Shutenko, Oleg Volodymyrovych; Kulyk, Oleksii Serhiiovych
    In the ageing conditions of the high-voltage oil-filled equipment stock, increasing the diagnostics reliability of its condition is an urgent and practically significant task. One possible way to solve this problem is to modify diagnostic criteria used to recognize the type of equipment defects, especially for those cases when the use of known methods does not allow establishing the correct diagnosis. In the article, the gas percentage and values of gas ratios for 184 units of equipment with electrical discharges of low energy density are analysed. It is shown that for 144 units out of 184, the values of these criteria differ significantly from the values regulated in the current standards for recognition of low energy density discharges. Nomograms (graphic areas) for 8 types of defects that are not regulated in any of the current standards are given. The comparative analysis of recognition reliability of the analysed defects with the use of known standards and methods is carried out. The given in work values of percentage and relations of gases, and also graphic areas (nomograms) of defects are the advanced diagnostic scheme which use allows to increase accuracy of defect type recognition by results of the dissolved gases analysis. This, in turn, significantly increases the operational reliability of oil-filled equipment.