Development of a Tensioning Device for the 400km/h High-speed Overhead Contact Line

400km/h급 전차선로용 장력조정장치 개발

  • Cho, Yong Hyeon (High-Speed Railroad Research Center, Korea Railroad Research Institute) ;
  • Lee, Kiwon (High-Speed Railroad Research Center, Korea Railroad Research Institute) ;
  • Kwon, Sam Young (High-Speed Railroad Research Center, Korea Railroad Research Institute) ;
  • Cho, Ho Rung (Pyungil Co., Ltd.)
  • Received : 2015.08.19
  • Accepted : 2015.11.18
  • Published : 2015.12.01


The pulley-type tensioning device subjected to a maximum tension of 34 kN has been developed for 400 km/h high-speed railway. The tensioning device is to maintain the tension variation within 3% of the normal value, irregardless of temperature changes. Field tests shows that the tensioning device had a variation of tension which was as small as 0.6% as temperatures changed from $-5{\sim}7^{\circ}C$. Along with the tensions, we measured its X and Y movements due to the temperature changes. Based on a combination of its X and Y movements, we proposed a new performance index with which we can see if the tensioning device has troubles in operation without tension measurements.


Grant : 증속에 따른 전차선로 시스템 기술

Supported by : 한국철도기술연구원


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