摘要：随着自动化技术水平的推广应用，传统的“五防”模式已无法完全适应变电站安全操作的要求。文章通过传统微机五防存在的缺点，提出了防误闭锁系统将面对的新要求，通过分析变电站五防系统的应用，及该系统各模块的实现方式，很好的解决了传统微机五防的缺点，将来今后变电站五防系统建设中具有良好的使用前景。
　　关键词：在线式五防系统变电站防误操作在线监测
　　Abstract: With the popularization and application of the level of automation technology, the traditional "five prevent" model has not fully meet the requirements of the substation safety operation. In this paper, through the traditional to the disadvantages of the microcomputer five, and put forward the control system will face closure error of the new requirements, through the analysis and the application of the system five transformer substation, and the system of each module in realization, very good solve the microcomputer and the shortcomings of traditional five, in the future the substation in the future five in the system construction has good use prospects.
　　Key words: on-line five substations system, substation, wrong operation, on-line monitoring
　　中图分类号： TV5

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