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Thermal Analysis of Heat Distribution in Busbars during Rated Current Flow in Low-Voltage Industrial Switchgear

Author

Listed:
  • Michał Szulborski

    (Faculty of Electrical Engineering, Electrical Power Engineering Institute, Warsaw University of Technology, 00-662 Warsaw, Poland)

  • Sebastian Łapczyński

    (Faculty of Electrical Engineering, Electrical Power Engineering Institute, Warsaw University of Technology, 00-662 Warsaw, Poland)

  • Łukasz Kolimas

    (Faculty of Electrical Engineering, Electrical Power Engineering Institute, Warsaw University of Technology, 00-662 Warsaw, Poland)

Abstract

The manuscript presents advanced coupled analysis: Maxwell 3D, Transient Thermal and Fluent CFD, at the time of a rated current occurring on the main busbars in the low-voltage switchgear. The simulations were procured in order to aid the design process of such enclosures. The analysis presented the rated current flow in the switchgear busbars, which allowed determining their temperature values. The main assumption of the simulation was measurements of temperature rise during rated current conditions. Simulating such conditions is a valuable asset in order to design better solutions for energy distribution gear. The simulation model was a precise representation of the actual prototype of the switchgear. Simulations results were validated by experimental research. The heat dissipation in busbars and switchgear housing through air convection was presented. The temperature distribution for the insulators in the rail bridge made of fireproof material was considered: halogen-free polyester. The results obtained during the simulation allowed for a detailed analysis of switchgear design and proper conclusions in practical and theoretical aspects. That helped in introducing structural changes in the prepared prototype of the switchgear at the design and construction stages. Deep analysis of the simulation results allowed for the development concerning the final prototype of the switchgear, which could be subjected to the full type tests. Additionally, short-circuit current simulations were procured and presented.

Suggested Citation

  • Michał Szulborski & Sebastian Łapczyński & Łukasz Kolimas, 2021. "Thermal Analysis of Heat Distribution in Busbars during Rated Current Flow in Low-Voltage Industrial Switchgear," Energies, MDPI, vol. 14(9), pages 1-23, April.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:9:p:2427-:d:542566
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    References listed on IDEAS

    as
    1. Sebastian Łapczyński & Michał Szulborski & Karol Gołota & Łukasz Kolimas & Łukasz Kozarek, 2020. "Mechanical and Electrical Simulations of the Tulip Contact System," Energies, MDPI, vol. 13(19), pages 1-28, September.
    2. Michał Szulborski & Sebastian Łapczyński & Łukasz Kolimas & Łukasz Kozarek & Desire Dauphin Rasolomampionona, 2020. "Calculations of Electrodynamic Forces in Three-Phase Asymmetric Busbar System with the Use of FEM," Energies, MDPI, vol. 13(20), pages 1-26, October.
    3. Adrian Plesca, 2019. "Thermal Analysis of Busbars from a High Current Power Supply System," Energies, MDPI, vol. 12(12), pages 1-14, June.
    4. Fabio Di Napoli & Alessandro Magnani & Marino Coppola & Pierluigi Guerriero & Vincenzo D’Alessandro & Lorenzo Codecasa & Pietro Tricoli & Santolo Daliento, 2017. "On-Line Junction Temperature Monitoring of Switching Devices with Dynamic Compact Thermal Models Extracted with Model Order Reduction," Energies, MDPI, vol. 10(2), pages 1-14, February.
    5. Chengfei Geng & Fengyou He & Jingwei Zhang & Hongsheng Hu, 2017. "Partial Stray Inductance Modeling and Measuring of Asymmetrical Parallel Branches on the Bus-Bar of Electric Vehicles," Energies, MDPI, vol. 10(10), pages 1-16, October.
    6. Min-Jun Kim & Sang-Hwan Bak & Woo-Chul Jung & Deog-Jae Hur & Dong-Shin Ko & Man-Sik Kong, 2019. "Improvement of Heat Dissipation Characteristics of Cu Bus-Bar in the Switchboards through Shape Modification and Surface Treatment," Energies, MDPI, vol. 12(1), pages 1-11, January.
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