강체전차선로(R-Bar) 구간에서 팬터그래프와 전차선 간의 아크발생에 대한 원인 분석

Since the railway construction in today is mainly built underneath the ground, a demand on Overhead Conductor Rail has increased due to its capability to reduce costs by reducing area of the underground structure. Overhead Conductor Rail is categorized into T-Bar, majorly used in section with 1,500V DC where current capacity is high, and R-Bar used in the section with 25,000V AC where current capacity is low The study proposes a solution for stable supply of electricity to the train through identifying locations where the arc breaks out between pantograph and trolley in R-Bar section and analysis of correlation between standard of R-Bar and expansion joint.