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在新干线上运行的交流电车,其受电弓上升时,电涌电压进入车辆,使低压电器的绝缘部分遭到破坏。安装接地电阻装置,一是用来防止流动于原来编组的接地电流产生偏压,同时还可防止因回线电流而使驱动装
When the tram running on the Shinkansen traverses its pantograph, the surge voltage enters the vehicle and the insulated part of the low-voltage electrical equipment is destroyed. Installation of grounding resistance device, one is used to prevent flowing in the original grouping of the grounding current bias, but also to prevent the loop current drive