Temperature analysis and comparison of active power losses in non-stationary and stationary thermal conditions of overhead power lines
The article considers the temperature distribution with increased currents in the nonstationary thermal regime of overhead power lines. The temperature distribution along the length of the line for wires of AC-240/32 and G(Z)TACSR 240 grades is constructed. Temperature dependences on time are plot...
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| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Budgetary Educational Institution of Higher Education
2023-11-01
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| Series: | Омский научный вестник |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2023/%E2%84%964%20(188)%20(%D0%9E%D0%9D%D0%92)/93-99%20%D0%A2%D1%80%D0%BE%D1%86%D0%B5%D0%BD%D0%BA%D0%BE%20%D0%92.%20%D0%9C..pdf |
| Summary: | The article considers the temperature distribution with increased currents in the nonstationary thermal regime of overhead power lines. The temperature distribution
along the length of the line for wires of AC-240/32 and G(Z)TACSR 240 grades is
constructed. Temperature dependences on time are plotted. The practical value of
the mathematical model considered in the article lies in determining the maximum
temperatures of overhead lines of different sections in normal or post-emergency
wire mode. A comparative analysis of active power losses in a stationary thermal
regime is carried out with and without taking into account axial heat transfer. The
comparison showed that taking into account the axial heat transfer refines the
active power losses, which allows introducing measures to reduce these losses with
greater accuracy. |
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| ISSN: | 1813-8225 2541-7541 |