...区段域保护方法 关键词：地铁直流保护；轨道交通；直流牵引；电流上升率；电流增量 [gap=1417]Key words：metro DC protection；rail tran sit；DC traction；rate of current rise；increment of current ..
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This paper mainly introduces an optimum design scheme for the frame leakage current protection of DC traction power supply system in metro engineering.
介绍了地铁直流牵引供电系统框架泄漏保护的优化设计方案。
The significance of electrical protection and definite value of DC traction power supply system for metro is illustrated.
阐明地铁直流牵引供电系统电气保护设置与定值的重要性，着重论述地铁电气保护设置的主要原则。
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