牵引供电系统继电保护配置必须合理、规范、准确，满足保护的速断性、可靠性、选择性、灵敏性的要求。
The protective schemes of traction electric system should be reasonable, normal and accurate, which should satisfy the requirements of quick-break, reliability, selectivity, and sensitivity.
牵引供电系统继电保护配置必须合理、规范、准确，满足保护的速断性、可靠性、选择性、灵敏性的要求。
The protective schemes of traction electric system should be reasonable, normal and accurate, which should satisfy the requirements of quick-break, reliability, selectivity, and sensitivity.
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