Refined analysis of the limit modes of overhead power lines
The article analyzes the limiting modes of overhead power transmission lines in terms of heating and voltage losses. The equations linking the wire temperature, voltage loss, load power, cooling conditions and line parameters are obtained. Depending on the length, three characteristic regions can...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education
2024-11-01
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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/2024/%E2%84%964%20(192)%20(%D0%9E%D0%9D%D0%92)/83-90%20%D0%93%D0%B8%D1%80%D1%88%D0%B8%D0%BD%20%D0%A1.%20%D0%A1.,%20%D0%94%D0%B5%D0%B5%D0%B2%20%D0%92.%20%D0%90.,%20%D0%9F%D0%B5%D1%82%D1%80%D0%BE%D0%B2%D0%B0%20%D0%95.%20%D0%92.,%20%D0%9A%D1%80%D0%BE%D0%BF%D0%BE%D1%82%D0%B8%D0%BD%20%D0%9E.%20%D0%92.,%20%D0%9A%D1%80%D0%B8%D0%B2%D0%BE%D0%BB%D0%B0%D0%BF%D0%BE%D0%B2%20%D0%92.%20%D0%90.,%20%D0%93%D0%BE%D1%80%D1%8E%D0%BD%D0%BE%D0%B2%20%D0%92.%20%D0%9D..pdf |
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| Summary: | The article analyzes the limiting modes of overhead power transmission lines in terms
of heating and voltage losses. The equations linking the wire temperature, voltage
loss, load power, cooling conditions and line parameters are obtained. Depending
on the length, three characteristic regions can be distinguished in which the limiting
modes are determined either only by heating, or only by voltage loss, or both. A
combined limit mode is considered separately, in which the wire temperature and
voltage loss simultaneously assume the maximum permissible values. New refined
criteria for assessing the admissibility of the line mode have been obtained. As an
example, the AC-240 line with a 220 kV voltage of varying length is considered,
for which a number of dependencies characterizing the areas of existence and
conditions for the occurrence of limit modes are constructed. |
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| ISSN: | 1813-8225 2541-7541 |