随着我国社会经济的快速发展，电力事业得到了长足的发展，这就对电力系统的安全运行提出了更高的要求。变电站运行的安全性对整个电力系统的安全运行具有重要的作用。220 kV变电站是我国电力变电站的重要组成部分，合理利用继电保护回路系统能够提高变电站运行的稳定性，为电力企业创造更多的经济利益，同时，也能提升变电站的社会效益。在简要介绍继电保护系统的基础上，分析了其在220 kV变电站的运行状况，并提出了加强220 kV变电站中继电保护时间差级管理的措施。%With the rapid development of China's economy, the power industry has been considerable development, which for the safe operation of the power system put forward higher requirements. Safety substation operation of safe operation of the entire power system plays an important role. 220 kV substations is an important part of China’s electric power substation, rational use of relay loop system can improve the stability of the substation operation and create more economic benefits to the power companies, but also can enhance social substations. On the basis of a brief introduction of relay protection system based on the analysis of its operating conditions at the substation 220 kV, and proposed measures to strengthen 220 kV substations relay time difference level management.
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