| Title |
Development of a Tensioning Device for the 400km/h High-speed Overhead Contact Line |
| Authors |
조용현(Cho, Yong Hyeon) ; 이기원(Lee, Kiwon) ; 권삼영(Kwon, Sam Young) ; 조호령(Cho, Ho Rung) |
| DOI |
https://doi.org/10.5370/KIEE.2015.64.12.1789 |
| Keywords |
Tensioning device ; Overhead contact line ; Tension ; Contact wire |
| Abstract |
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 -5~7°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. |