Research results: the train control centre interfaces for CTCS2 adopting the international standard safety digital interface can overcome the inherent disadvantages of the existing relay interfaces.
研究结果：基于CTCS2地面列控中心接口采用国际上通用的标准安全型数字接口克服继电接口的固有缺点。
In addition, the relay protection performance of a motor in a imported gas expander train is also described and measures for improving relay protection systems of motors are proposed.
还分析了引进机组中电机的继电保护装置的特点，提出了完善电机继电保护系统的建议。
In addition, the relay protection performance of a motor in a imported gas expander train is also described and measures for improving relay protection systems of motors are proposed.
还分析了引进机组中电机的继电保护装置的特点，提出了完善电机继电保护系统的建议。
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