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。
This paper mainly introduces an optimum design scheme for the frame leakage current protection of DC traction power supply system in metro engineering.
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。
The significance of electrical protection and definite value of DC traction power supply system for metro is illustrated.
介绍了地铁直流牵引供电系统保护的原理，和所采用的几种直流馈线保护方法。
The principle of the relay protection of multi-car's DC traction supply system and the several DC feeder protection methods were presented.
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