Abstract: While the maloperation accidents happen frequently in power system, microcomputer anti-maloperation locking system is widely applied in all voltage-level power stations and substations. This paper introduces the system applied in one power station. Based on actual case, some common problems in application with the system before technological renovation are analyzed. As well, the new functions after renovation are introduced. At last, some suggestions are put forward and experiences are provided for reference in safety management of power stations.

Key words: microcomputer anti-maloperation locking system, application, renovation

摘要： 随着现代电力系统误操作事故的频发，微机防误闭锁系统在各电压等级的发电厂和变电站得到了广泛的应用。结合某电站使用的微机防误闭锁系统实际，分析了改造前该系统在使用中发现的一些问题，介绍了改造后系统增加的功能，并提出相应的意见和建议，以期为微机防误闭锁系统在电站的安全运行管理提供借鉴和参考。

关键词: 微机防误闭锁系统, 应用, 改造