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Information × Registration Number 0225U003570, (0123U100693) , R & D reports Title "Development of the foundations of the theory and methods for studying the influence of non-sinusoidal voltages and currents and emerging electrothermodynamic processes on the reliability and service life of modern cable transmission lines and on the energy efficiency of electrical installations of resonant type" (Code "Elres") popup.stage_title Розвинути методи дослідження порогових і стохастичних мультифізичних процесів деградації ЗПЕ ізоляції силових кабелів на високі та надвисокі напруги, при яких необхідно враховувати нелінійні залежності питомої струмопровідності ЗПЕ ізоляції від значних напруженостей ЕП і температур в її локальних мікрооб'ємах біля струмопровідних і діелектричних мікровключень різних розмірів, форм та просторових орієнтацій. Head Shcherba Anatolii A., Доктор технічних наук Registration Date 15-07-2025 Organization Institute of Electrodynamics of the National Academy of Sciences of Ukraine popup.description1 The aim of the work is to develop the foundations of the theory and methods of researching the regularities and features of the influence of non-sinusoidal voltages and currents and emerging electrothermodynamic processes on the reliability and service life of modern cable power transmission lines and the energy efficiency of electrical engineering installations of the resonance type by means of computer modeling of threshold and stochastic electrophysical processes of the destruction of solid polymer insulation of power cables and analysis of polyresonance characteristics of diagnostic and technological installations. popup.description2  The object of research is modern cable power transmission lines and resonant-type electrotechnological installations. Tasks of the research: – development of a scientific concept and methods for researching the regularities of the influence of non-sinusoidal voltages and currents and appearing electro-physical processes on the reliability and service life of modern power cables with XLPE insulation as well as on the energy efficiency of resonant-type installations based on computer modeling of threshold and stochastic insulation destruction processes and analysis of the characteristics of diagnostic resonant installations; – development of new mathematical models and research methods of electromagnetic and thermal processes in three-phase power transmission cable lines, taking into account changes in their carrying capacity at non-sinusoidal voltages and currents and various methods of transposition and grounding of cable screens. The theoretical significance of the obtained scientific results lies in the development of the foundations of the theory and new methods for researching the influence of non-sinusoidal voltages and currents and appearing electro-thermodynamic processes on the reliability and service life of modern cable power transmission lines and on the energy efficiency of resonant-type electro-technological installations. Practical significance. The obtained fundamental scientific results will be directed to the development of methods and technical recommendations for improving the technologies of testing and operation of power cables with XLPE insulation in order to increase the reliability and service life of domestic cable power lines in the power supply systems of traditional and renewable power engineering of Ukraine. The obtained results are planned to be implemented at industrial enterprises (in particular at the "Pivdenkabel" plant, Kharkiv) that manufacture, test and implement domestic power cables with XLPE insulation in traditional and rene Product Description popup.authors Vinnychenko Dmytro V. Kucheriava Iryna M. Lysak Oleksandr V. Lomko Mykola O. Podoltsev Oleksandr D. Roziskulov Serhii S. Synytsyn Viktor K. Suprunovska Nataliia І. Shcherba Maksym A. popup.nrat_date 2025-07-15 Close