Interaction of Structural Elements in the Overhead Transmission Power Line

Cover Page

Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

The analysis of the changes of tensile forces in conductors and earth wires is performed during their breakage and impact on the towers of overhead power line with a voltage of 330 kV. Based on the results, a mathematical model of a unified cable-stayed rod system consisting of steel towers, conductors and earth wires and insulating elements has been compiled. The system of equations of the model is solved iteratively using the MS Excel spreadsheet processor for various breakage cases. The dependences of tensile forces in conductors and earth wires during their breakage are presented, as well as the forces which correspond to an acting regime on towers in a linear circuit, taking into account the supporting effect of neighboring towers.

Full Text

Restricted Access

About the authors

N. A. Senkin

Saint-Petersburg State University of Architecture and Civil Engineering

Author for correspondence.
Email: senkin1952@yandex.ru

Candidate of Sciences (Engineering)

Russian Federation, 4, 2nd Krasnoarmeyskaya Street, Saint Petersburg, 190005

A. S. Filimonov

Saint-Petersburg State University of Architecture and Civil Engineering

Email: sanya328kms@yandex.ru

Master of Science, Engineer

Russian Federation, 4, 2nd Krasnoarmeyskaya Street, Saint Petersburg, 190005

References

  1. Shevchenko E.V., Mitrakov V.A., Tanasoglo A.V. Determination of reduced gravity in case of wire breakage. Metallicheskie konstruktsii. 2010. Vol. 16. No. 3, pp. 189–198. (In Russian).
  2. Tanasoglo A.V. Determination of reduced gravity in case of breaks in live wires and lightning protection cables of overhead power lines with a voltage of 35–110 kV. Metallicheskie konstruktsii. 2022. Vol. 28. No. 4, pp. 195–205. (In Russian).
  3. Tanasoglo A.V., Garanzha I.M., Fedorova S.R. Monitoring of single-post free-standing supports of overhead power lines under the action of wind loads. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2023. No. 12, pp. 73–78. (In Russian). DOI: https://doi.org/10.31659/0044-4472-2023-12-73-78
  4. Kuryanov V., Gurevich L., Timashova L., Fokin V. Plastically compressed steel – aluminum wires for new overhead. SIGRE. B2 – OVERHEAD LINES. Challenges & New Solutions in Design and Construction of New OHL. 2022, pp. 1–10.
  5. Efimov E.N., Timashova L.V., Yasinskaya N.V. The causes and nature of damage to components of overhead power transmission lines with a voltage of 110–750 kV in 1997–2007. Energiya Edinoi seti. 2012. No. 5, pp. 32–41. (In Russian).
  6. Vasy`lev V.N. Issledovanie prostranstvennoj raboty krestovoj reshetki pri naturnykh ispytaniyakh opor VL na Poligone DonNASA. Metallicheskie konstrukcii. 2018. Vol. 19. No. 1, pp. 15–25. (In Russian).
  7. Mishchenko V.V. Installation of flexible connection wires and overhead power lines at hydroelectric power plants: design problems and ways to solve them. News of the All-Russian Scientific Research Institute of Hydraulic Engineering named after B.E. Vedeneev. 2022. Vol. 306, pp. 61–70. (In Russian).
  8. Galiaskarov I.M., Misrikhanov M.Sh., Ryabchenko V.N. Once again about the cyclicity of accidents in the main networks of power systems. Elektrichestvo. 2019. No. 11, pp. 4–11. (In Russian). DOI: 10/24150/0013-5380-2019-11-4-11
  9. Kirsanov M. An inductive method of calculation of the deflection of the truss regular type. Architecture and Engineering. 2016. Vol. 1. No. 3, pp. 14–17. (In Russian).
  10. Volkov V. Control over distribution of construction loads on foundations of tower buildings. Architecture and Engineering. 2016. Vol. 1. No. 4, pp. 42–45. (In Russian).
  11. Senkin N.A., Belyakova T.E. About accounting for the building foundation settlement and the vertical displacement of supports at calculation of tower-type structures. Vestnik grazhdanskikh ingenerov. 2022. No. 2 (91), pp. 36–44. (In Russian). doi: 10.23968/1999-5571-2022-19-2-36-44
  12. Senkin N.A. Consideration of progressive collapse in the design of overhead power transmission line supports. Vestnik grazhdanskikh ingenerov. 2022. No. 4, pp. 37–46. (In Russian) doi: 10.23968/1999-5571-2022-19-4-37-46
  13. Senkin N.A. Progressive collapse and restoration of overhead power lines structures. Izvestiya of higher educational institutions. Construction. 2023. Vol. 10, pp. 5–20. (In Russian). doi: 10.32683/0536-1052-2023-778-10-5-20
  14. Glazunov A.A. Rabota i raschet provodov i trossov [Work and calculation of wires and cables]. Moscow: Gosenergoizdat. 1956. 192 p.
  15. Liu Chun-cheng, Chu Zheng-yu, Zhang Wei, Sun Xian-he. Study on iced and wire breaking-induced vibrations of long distance electricity tower-line system. International Conference on Future Electrical Power and Energy Systems. Energy Procedia. 2012. No. 17, pp. 834–842. (In Russian).

Supplementary files

Supplementary Files
Action
1. JATS XML
Download
2. Fig. 1. Photo of the damaged intermediate support No. 59 due to the emergency fall of intermediate support No. 60 on the double–chain 220 kV Dorokhovo – Sloboda overhead line in the Moscow region (03.08.2016.) due to hurricane wind with characteristic damage to neighboring supports No. 57–59 (loss of stability of belts and braces in the 8th panel from below)

Download (682KB)
Indexing metadata
3. Fig. 2. Operation diagram of the line in case of wire breakage

Download (386KB)
Indexing metadata
4. Fig. 3. Movement of supports and garlands of insulators δ, mm, when the wire breaks in span No. 1

Download (418KB)
Indexing metadata
5. Fig. 4. The gravity force T, даN(kg)3, in the wire when it breaks in span No. 1

Download (272KB)
Indexing metadata
6. Fig. 5. Diagram of the 330 kV overhead line section

Download (231KB)
Indexing metadata
7. Fig. 6. 330 kV overhead line supports: a – intermediate support P330 h-1; b – anchor-angular support U330 h-1+14

Download (534KB)
Indexing metadata
8. Fig. 7. Changes in the gravity forces T in the lightning rod when it breaks or one of the wires breaks

Download (216KB)
Indexing metadata
9. Fig. 8. The force of gravity T in the wires and lightning rod when wire No. 3 is broken

Download (336KB)
Indexing metadata
10. Fig. 9. The ratio of the gravity force in the wire after breakage to its initial tension in the span

Download (328KB)
Indexing metadata
11. Fig. 10. The forces acting on the supports after wire breakage No. 3

Download (520KB)
Indexing metadata

Copyright (c) 2024 Advertising publishing company "STROYMATERIALY"