The present situation of the 110 kV and 400 V station-service power systems and 220V DC power system in Shuibuya Power Station are described .Influencing factors on the reliability of station-service power systems are ana-lyzed.Technical measures are then proposed to solve the problems encountered in the operation of station-service power systems.%介绍了水布垭电厂110 kV厂用电源系统、400 V厂用电源系统、220 V直流电源系统的现状,分析了厂用电源系统可靠性的影响因素,对3种电源系统在运行中存在的问题提出了具体措施。
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