變電站站用電系統(tǒng)接線方式比較及其運(yùn)行維護(hù)分析
郝長(zhǎng)端
(國(guó)網(wǎng)信陽供電公司,河南 信陽 464000)
摘 要:討論了220 kV 及以下變電站低壓交直流系統(tǒng)的常見接線方式,對(duì)幾種特殊接線方式進(jìn)行了總結(jié),分析了它們的特點(diǎn)及其在日常運(yùn)行維護(hù)與操作過程中需要注意的事項(xiàng),并展望了智能變電站交直流一體化電源的發(fā)展趨勢(shì),為變電站低壓交直流系統(tǒng)的運(yùn)行維護(hù)提供參考。
關(guān)鍵詞:站用電;接線方式;運(yùn)行與維護(hù)
中圖分類號(hào):TM645 文獻(xiàn)標(biāo)識(shí)碼:B 文章編號(hào):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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