介绍了110kV变电站的备用电源自投装置的各项应用以及常见缺陷,对不同种类保护从安全性、可靠性、维护性的角度进行分析,提出了缺陷解决方案及处理意见.%The article introduces the applications of standby power switch device of the substation of 110 kV and the common defects, analyzes the different kinds of protection from the angle of safety, reliability, maintainability, and puts forward the solutions for the defects and processing suggestions.
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