对地铁供电系统的设计和运营具有一定的参考价值。
There are definite referenced value for design and running of subway power supply system.
因此，分析和提高整个地铁供电系统的可靠性与安全性成为越来越需要关注的课题。
So analysis and improve the reliability and safety of the metro power supply system has come to more attention.
阐述了地铁供电系统对电源的基本要求，对各种供电方式的特点及其选择作了简要分析。
The article describes the basic requirements for the power source of the metro power supply system, analyzes briefly the features of various power supply modes and their selection.
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