龙门滩二级电站发电机组保护装置改造设计

Upgrade design of generator unit protection device for Longmentan 2nd stage Hydropower Station

龙门滩二级电站发电机组保护装置原为常规继电器型保护装置,由于运行年限较长、元器件老化,不能适应电站微机自动化监控系统要求,经设计论证后改造为DGT801系列微机保护装置。重点介绍该保护装置的设计、系统配置、功能要求情况,以及系统的维护重点。

At Longmentan 2nd stage Hydropower Station, the original generator unti protection devices were conventional relay protection equipment which failed to satisfy the requirements of micro-computer supervision and control system after long period of operation and with aging elements, and had been replaced by computer protection devices of DGT801series. An introduction was made on the design of protection devices, system configuration, functons the key points of system maintenance.