Railway transportation is of safety, convenience, economy, and environmental friendliness. However, with energy issues becoming increasingly important in this century, it is important to assess the situation in the transportation sector. When the superconducting cable is used as a feeder of the railway electrification system, the voltage drop can be significantly reduced. Therefore, the superconducting feeder has many effects, for example, the reduction transmission losses, the improvement of the regeneration factor, and the reduction of substations. We designed superconducting feeder and introduced to the Izuhakone Railway Sunzu line in Japan. After the system was checked from the aspect of cooling and current properties, the train running test was conducted. From the result of switching notch tests, it was found that the current flows continuously via the superconducting cable according to the notch operation. Furthermore, to inspect the influence of superconducting material, a large pulse current test was performed using the transmission equipment of a railway. It can be confirmed that superconductor can be used as railway feeder because the materials can cope with the current change peculiar to railway required for practical use.

中文翻译：

---

铁路车辆脉冲电流和陷波运行中超导馈线电缆的验证

铁路运输具有安全、便捷、经济、环保的特点。然而，随着能源问题在本世纪变得越来越重要，评估运输部门的情况很重要。当超导电缆用作铁路电气化系统的馈线时，电压降可以显着降低。因此，超导馈线具有降低传输损耗、提高再生系数、减少变电站等诸多作用。我们设计了超导馈线，并引入了日本的伊豆箱根铁路 Sunzu 线。从冷却和电流性能方面对系统进行检查后，进行了列车运行测试。从切换槽口测试的结果来看，发现电流根据缺口操作连续流经超导电缆。此外，为了检查超导材料的影响，使用铁路传输设备进行了大脉冲电流测试。可以确认超导体可以用作铁路馈线，因为该材料可以应对实际使用所需的铁路特有的电流变化。