| 摘要 |
PROBLEM TO BE SOLVED: To curtail a large loss as the whole of a transportation time arising from work, etc. such as cut off, shifting, and connection, which occurs in replacement work accompanyied by the composition change of a railroad car or composition construction work, etc. performed at first in a premise. SOLUTION: A railroad car 1 towed by a locomotive 3 is equipped with motors 13a and 13b, a small-sized driving means 12 composed of a power converting means 122 for driving the motors and a secondary battery 121 for supplying the power converting means 122 with power, and a power receiving means 19. It receives power via a power converting means 33 and a pair of power lines 5 and the power receiving means 19 from the locomotive 3, and charges a secondary battery 121 at usual travelling. The railroad car 1 for freight transportation is self-propelled by the small-sized driving means 12 in the case of the composition change of the railroad car 1. COPYRIGHT: (C)2005,JPO&NCIPI |
