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通过分析城市轨道交通直流系统框架保护及轨电位限制的原因及动作原理,阐述直流框架保护电流保护、电压保护及钢轨电位限制装置动作配合关系及实现方法。
By analyzing the reasons and operating principle of DC rail system protection and rail potential limitation in urban rail transit, this paper describes the protection and protection of the DC link current, the protection of voltage and the action and coordination of rail potential limiting device.