Abstract: Load rejection is the most unfavorable working condition for the civil structure of pumped storage unit. Grasping the impact of the load rejection condition on the civil structure of the unit is very important. This paper introduces the automatic monitoring results of the prototype monitoring instrument buried in the civil structure of the unit in the process of load rejection test, indicating that the civil structure of the unit works well in a good flexible state. The data in this paper are the first-hand measured data in the process of the load rejection, which is summarized to be used as a reference for similar projects.

Key words: load rejection, safety monitoring, generating unit, pumped storage

摘要： 机组甩负荷是抽水蓄能电站机组土建结构的最不利工况，掌握甩负荷工况对机组土建结构的影响至关重要。笔者介绍了甩负荷试验中埋设在机组土建结构中的原型监测仪器的自动化监测结果，表明机组土建结构处于良好的弹性工作状态，文中数据均为甩负荷过程中的一手实测数据，总结之以期为类似工程提供参考。

关键词: 甩负荷, 安全监测, 机组, 抽水蓄能