Railway track admittance, earth-leakage effects and track circuit operation
Railway track admittance, earth-leakage effects and track circuit operation
复制标题
铁路轨道导纳、漏电效应和轨道电路运行
DOI：
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发表时间：
1989
期刊：
影响因子：
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通讯作者：
T. Tasar
中科院分区：
文献类型：
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作者：
R. Hill;D. Carpenter;T. Tasar
铁路轨道充当一对漏接地回路导体，用于紧邻火车的推进电流，并充当双轨轨道电路的不完美绝缘导体对。作者从牵引和信号的角度考虑了接地导纳和泄漏条件的影响。研究了有关轨电压安全水平、漏地电流和轨电流分布的问题。电容补偿被评估为提高高道砟电导率轨道电路分流灵敏度的一种手段。<<ETX>>
A railway track acts as a pair of leaky ground-return conductors for propulsion current in the immediate vicinity of trains and as an imperfectly insulated conductor pair for double-rail track circuits. The authors consider the effect of ground admittance and leakage conditions from both the traction and signaling viewpoints. Problems concerning rail voltage safety level, earth leakage currents, and rail current distribution are examined. Capacitive compensation is evaluated as a means of improving the shunting sensitivity of track circuits with high ballast conductivity.<<ETX>>