Abstract：The actual problem of relay protection in Jianbi Pumping Station and how the problem being solved by applying computer monitor system during the capability expanding stage are discussed.The new system includes computer gather-control system,relay protection system and image monitor system.It applies the computer protection equipment in the relay protection system.The protection from the main transformer,station transformer and the microcomputer protection of each unit is achieved by the direct management to the protected modules through communication between RS485 and Ethernet or between Ethernet and position machine.It uses 369 digital relay to protect the three-phase motor and the related equipment. The control and monitor are achieved through applying T60 as the transformer protection and F650 as the station transformer.The application result shows that the security and automatic levels of the pumping station have been improved greatly.pumping station;microcomputer protection;relay;control;monitor
李蕙；李昕. 微机保护在泵站改造中的应用[J]. 排灌机械工程学报, 2007, 25(3): 42-45.
LI Hui, LI Xin. Application of microcomputer protection in the improvement of pumping station. Journal of Drainage and Irrigation Machinery Engin, 2007, 25(3): 42-45.
