Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
278 0 |
Căutarea după subiecte similare conform CZU |
621.3.048.1 (2) |
Electrotehnică (1160) |
SM ISO690:2012 ГАТАУЛЛИН, Айрат, ГУБАЕВ, Дамир. Комплексный метод оценки характера повреждений, их локализации и прогнозирования разрушения изоляторов высоковольтного электрооборудования по характеристикам частичных разрядов. In: Problemele Energeticii Regionale, 2022, nr. 1(53), pp. 152-160. ISSN 1857-0070. DOI: https://doi.org/10.52254/1857-0070.2022.1-53.12 |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
Problemele Energeticii Regionale | ||||||
Numărul 1(53) / 2022 / ISSN 1857-0070 | ||||||
|
||||||
DOI:https://doi.org/10.52254/1857-0070.2022.1-53.12 | ||||||
CZU: 621.3.048.1 | ||||||
Pag. 152-160 | ||||||
|
||||||
Descarcă PDF | ||||||
Rezumat | ||||||
The aim of this study is to improve the accuracy of localization of defects in insulators and determine their type. This goal is achieved by solving the problem of combining contact and remote methods for polymer and porcelain insulators using model partial discharges. The most significant results are the regularities of the dynamics of the characteristics of partial discharges up to the pre-breakdown situation for porcelain insulators, the study of the statistical distributions of partial discharges depending on their intensity, and the identification of the features of the statistical distribution of surface discharges. Part of the work is devoted to the study of the characteristics of partial discharges and their sources by spectra, polarity, statistical distributions, oscillograms, which is important from the point of view of automating the recognition of corona and internal partial discharges, as well as for the recognition of porcelain insulators destroyed by partial discharges. Regularities of changes in the statistical distribution of partial discharges up to the pre-breakdown situation were established. At the same time, the breakdown signs of the model discharge gap, the breakdown voltage values for defective and operable porcelain insulators are determined, which can be used to train models of artificial neural networks and recognize the pre-breakdown situation based on them. The most significant results were: assessment of the ohmic resistance of porcelain insulators by the characteristics of partial discharges, recognition of corona, internal and surface partial discharges of polymer insulators, localization of defects, using electromagnetic radiation sensors. |
||||||
Cuvinte-cheie partial discharges method, diagnostics of high-voltage electrical equipment insulators, localization of high-voltage insulators defects, state of high-voltage electrical equipment monitoring, metoda descărcării parțiale, diagnosticarea izolatorilor echipamentelor electrice de înaltă tensiune, localizarea defectelor în izolatorii de înaltă tensiune, monitorizarea stării echipamentelor electrice de înaltă tensiune, метод частичных разрядов, диагностика изоляторов высоковольтного электрооборудования, локализация дефектов высоковольтных изоляторов, мониторинг состояния высоковольтного электрооборудования |
||||||
|