Zobrazeno 1 - 10
of 242
pro vyhledávání: '"insulation aging"'
Publikováno v:
Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 67, Iss 2, Pp 125-136 (2024)
The results of research and analysis of electromagnetic and thermal processes taking place in an induction motor are presented. Information is presented on the creation of a design model of an auxiliary induction motor with various parameters accordi
Externí odkaz:
https://doaj.org/article/1776332a42e6454486fa2d10c95f040d
Publikováno v:
IEEE Access, Vol 12, Pp 64351-64359 (2024)
Future electric transportation systems are expected to employ electrical power trains with higher operating voltage and power density. Therefore, compact and reliable insulation systems are important, since they influence the system integration, ther
Externí odkaz:
https://doaj.org/article/97ce71bc60974980b4d9f32e7afeffe4
Publikováno v:
IEEE Access, Vol 12, Pp 32753-32761 (2024)
The new wide-bandgap power semiconductor devices, such as gallium nitride and silicon carbide, have encouraged the development of power electronic converters with better efficiency, higher switching frequency, and smaller packages. However, such fast
Externí odkaz:
https://doaj.org/article/ad5f999f43df43d79e26f848e70d38ea
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 9, Pp 167-177 (2023)
Insulation is considered the weakest link in electrical equipment. The combined effects of special working conditions in coal mines and aging factors such as electrical, thermal, and mechanical stresses make it difficult to determine the aging mechan
Externí odkaz:
https://doaj.org/article/b3ee8dde57cd46b587e915ef1d8e1558
Autor:
І.М. Кучерява
Publikováno v:
Праці Інституту електродинаміки Національної академії наук України, Iss 64, Pp 53-63 (2023)
The paper presents a review and analyzes of the principal factors for reliable operation of the power cables with polymer insulation. The basic conditions for long-term operation of the insulation, typical defects in its structure and the causes of t
Externí odkaz:
https://doaj.org/article/dcc2db053fe34b47898bc314d084279c
Publikováno v:
Energies, Vol 17, Iss 9, p 1987 (2024)
The low-voltage electric machine (EM) is a core technology for transportation electrification, and features like high power density and compact volume are essential prerequisites. However, these requirements are usually in conflict with the reliabili
Externí odkaz:
https://doaj.org/article/a1bce6e7b2254c21bb1e20042351201d
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 967-972 (2022)
As the essential equipment in ultra-high voltage direct current transmission systems, converter transformers provide an important role in the stable operation of the power grid. During the long-term operation of converter transformers, the aging and
Externí odkaz:
https://doaj.org/article/ed2a0e8865a247efa5bf940c96b49029
Autor:
M. O. Poliakov, V. V. Vasylevskyi
Publikováno v:
Electrical engineering & Electromechanics, Iss 5, Pp 47-54 (2022)
Introduction. Improving the methods of estimating the insulation aging of the oil-immersed power transformer windings is an urgent task for transformer condition monitoring systems. The scientific novelty of the work is to take into account the uneve
Externí odkaz:
https://doaj.org/article/20091d92706f4ddab571f8b39625ccb4
Akademický článek
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Publikováno v:
Известия высших учебных заведений: Проблемы энергетики, Vol 23, Iss 1, Pp 46-58 (2021)
THE PURPOSE. Reveal the regularities of turn-to-turn faults influence on to parameters of a three-phase network transformer in the disconnected transformer mode with the supply of control voltages and currents from an external source in the transform
Externí odkaz:
https://doaj.org/article/7337401fc96a4f0b8aa6680eb1892588