Author(s)

Y. Shimodaira & T. Morikawa

Abstract

DC electric multiple-units are mainly operated on DC 1,500V narrow-gauge railways in Japan. Most of these cars have a high-voltage bus line to reduce damage and wear of pantographs and contact wires by decreasing arcs in between. Among various problems experienced with high-voltage bus lines up to now, we investigated the phenomenon of excessive current. To attain preventive measures against this problem, we have developed a simulation program to analyze the current distribution on DC electric multiple-units. By using this program, we analyze a case of actual installation and make clear the influence of parameters, propose an idea to decrease excessive current that flows in the bus line. 1 Model of calculation

Keywords