To the 90th Anniversary of the Department of Electric Power Transmission of the National Technical University ″kharkiv Polytechnic Institute″

Barbashov, I. V.; Bondarenko, V. O.; Nizhevsky, V. I.

doi:10.20998/2224-0349.2020.01.01

Cited by 2 publications

(2 citation statements)

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“…1. Якщо це спостереження порівнювати зі спостереженнями інших авторів, які стверджують, що при зволоженні забрудненого ізолятора за рахунок зростання струму витоку нагрівається провідний шар, відбувається випаровування вологи і з'являються кільцеві підсушені зони з частковими ємностями [12,13], то в ході проведення вищевикладеного експерименту спостерігалася інша картина того, що відбувається -ніяких кільцевих зон не спостерігалося, тим паче кількісно.…”

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Study of changes in leakage currents under a contaminated and moistened surface of insulators of the PS-6B, PS-120A, PSD-70E types of overhead power lines

Shevchenko,

Borzenkov

2023

EREE

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In the process of operation, insulators are exposed to repeated pollution and atmospheric influences. This is due to the removal of pollutants from industrial metallurgical enterprises, chemical plants and their deposition on the surface of insulators near power transmission lines. In normal operation, when the insulators are dirty, but their surface is not wetted, the active component of the total leakage current can be neglected. It is another matter when the surface of the contaminated insulator is intensively moistened by atmospheric influences, for example: rain, fog, dew, respectively, and the value of the active component of the leakage current also increases in proportion to the conductivity of the formed electrolyte, the layer of contamination on the surface of the insulating surface of the insulator. The article discusses the method of measuring leakage currents on the contaminated surface of various types of glass plate insulators in laboratory conditions, with artificial and natural contamination. In the dry state, a leakage current flows through contaminated insulators, which mainly depends on the electrical capacity of the insulator. A method of calculating the active component of the leakage current is proposed, since the active component of the leakage current is the main parameter for determining energy losses due to its dissipation into the environment. The results of the change in the value of the leakage currents in the time characteristics after wetting the surface layer of pollution to the leakage current in the dry state of the insulator surface are given. The observation of drying processes of a contaminated and moistened surface due to the influence of leakage currents is given. The formation of dried zones on the surface of contaminated insulation of plate insulators of overhead power lines under the action of leakage currents was investigated. An analysis of the obtained results was carried out, conclusions were drawn.

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Study of changes in leakage currents under a contaminated and moistened surface of insulators of the PS-6B, PS-120A, PSD-70E types of overhead power lines

Shevchenko,

Borzenkov

2023

EREE

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“…На тлі цього кафедра ПЕЕ НТУ «ХПІ» займає одне з провідних місць. Слід звернути увагу на те, що вже понад 90 років кафедра проводить підготовку здобувачів вищої освіти для електроенергетичної галузі не тільки України, а й інших країн [9].…”

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Adaptive approaches in the education process of electrical energy specialists under the condition of marital state

Omelianenko,

Cherkashyna,

Shevchenko

2022

EREE

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The conditions of training of electric power specialists under martial law in Ukraine are analysed. The expediency of adjusting according to the conditions of the educational process of the educational and methodological complex of disciplines for the training of students of higher education in the specialty 141 – “Electric power, electrical engineering and electromechanics”, namely the specialization “Electrical systems and networks” is presented. Adaptation approaches are proposed that will increase the level of training of higher education applicants for the electric power industry of Ukraine due to the optimization of the educational process through the combination of digital technologies and relevant changes in the educational and methodological complex of disciplines, which will allow to increase the efficiency of the post-war restoration process of electrical network facilities and establish balance reliability in the unified energy system of the country.

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To the 90th Anniversary of the Department of Electric Power Transmission of the National Technical University ″kharkiv Polytechnic Institute″

Cited by 2 publications

References 0 publications

Study of changes in leakage currents under a contaminated and moistened surface of insulators of the PS-6B, PS-120A, PSD-70E types of overhead power lines

Study of changes in leakage currents under a contaminated and moistened surface of insulators of the PS-6B, PS-120A, PSD-70E types of overhead power lines

Adaptive approaches in the education process of electrical energy specialists under the condition of marital state

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