Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
권호 표지
DOI QR코드

DOI QR Code

Fluid Dynamics Analysis and Experimental Trial to Improve the Switching Performance of Eco-friendly Gas Insulated Switch

친환경 가스개폐기 개폐성능 향상을 위한 유동해석 및 실험

  • Yu, Lyun (Electrotechnology R&D Center, LS ELECTRIC Co.,Ltd.) ;
  • Ahn, Kil-Young (Electrotechnology R&D Center, LS ELECTRIC Co.,Ltd.) ;
  • Kim, Young-Geun (Electrotechnology R&D Center, LS ELECTRIC Co.,Ltd.) ;
  • Cho, Hae-Yong (Depart of Mechanical Eng. Chungbuk National University)
  • 유련 (LS ELECTRIC(주) 전력연구소) ;
  • 안길영 (LS ELECTRIC(주) 전력연구소) ;
  • 김영근 (LS ELECTRIC(주) 전력연구소) ;
  • 조해용 (충북대학교 기계공학부)
  • Received : 2022.07.18
  • Accepted : 2022.07.29
  • Published : 2022.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

An underground electric switch is a high-voltage switch used in distribution network systems for a reliable power supply. Many studies are being conducted to expand the switch to use an eco-friendly gas using dry air instead of SF6 gas to reduce greenhouse gas emissions. In this study, a flow analysis model was established to improve the performance of an eco-friendly gas switch. The results were compared and reviewed through experiments. For the optimal arc grid design applied to the switch, the flow characteristics based on the flow path configuration and the changes in arcing time for each configuration were compared. Flow analysis can predict the switch flow distribution, and a comparative review of the flow path configurations of various methods is possible.

Keywords

Acknowledgement

이 논문은 LS ELECTRIC의 재원과 전력시험기술원(PT&T)의 대전력 시험협조로 수행되었음.

References

  1. Heo, S. H., Lee, S. J., Chung, S. J., Sim, B. S., Kim, H. D. and Seo, I. Y. "Analysis of Trend for Distribution Switchgear Technology in Domestic and Foreign Country," Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, pp. 79, 2016.
  2. Bang, B. H., Lee, Y. S., Cho, J. U., "A Study on Thermal-Flow Analysis and Design Optimization for Interruption Performance Improvement of SF6 Gas Circuit Breaker," KIEE Conference, pp. 26~28, 2013.
  3. Martin, S. et al., "Comparison of SF6-Free Load-Break Switching Principles", CIRED.25th International Conference on Electricity Distribution, Madrid, 2019.
  4. Christophe, P. et al., "Innovative SF6 Free Switch with Shunt Vacuum Interruption Technology", CIRED 25th International Conference on Electricity Distribution, Madrid, 2019.
  5. Park, W. J., Lee, S. C., Ahn, K.Y., and Kim, Y. K., "Phenomena and Method of Arc Extinction in Air Circuit Breaker", ICEE 2018.
  6. Spalart, P. R. and Allmaras, S. R., "A One-Equation Turbulence Modelfor Aerodynamic Flows," La Recherche Aerospatiale, No. 1, pp. 5-21, 1992.
  7. Park, W. J., Kim, I. H., Ahn, K.Y., and Kim, Y. K. "A Study on Characteristics and Methods of Extinguishing Arc in Low Voltage Direct Current System", KIEE Conference, pp. 1688~1693, 2019.