变电站站用电系统接线方式比较及其运行维护分析
郝长端
(国网信阳供电公司,河南 信阳 464000)
摘 要:讨论了220 kV 及以下变电站低压交直流系统的常见接线方式,对几种特殊接线方式进行了总结,分析了它们的特点及其在日常运行维护与操作过程中需要注意的事项,并展望了智能变电站交直流一体化电源的发展趋势,为变电站低压交直流系统的运行维护提供参考。
关键词:站用电;接线方式;运行与维护
中图分类号:TM645 文献标识码:B 文章编号:1007-3175(2017)01-0043-04
Comparison and Operation and Maintenance Analysis of Station-Service
Power System Connection Mode in Substation
HAO Chang-duan
(State Grid Xinyang Power Supply Company, Xinyang 464000, China)
Abstract: This passage discussed the common connection mode of low-voltage alternating current and direct current system in various voltage grades and below 220 kV, carried out summary for several special connection modes and analyzed their characteristics and the matters needing attention in the process of routine operation and maintenance. This paper expected the development trend of alternating current and direct current integration power supply in intelligent substation, which provides references for operation and maintenance of low-voltage alternating current and direct current system in substation.
Key words: station-service power; connection mode; operation and maintenance
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