二滩水电站第一副厂房直流系统改造  

DC system tranformation of Ertan Hydropower Station

作　　者：高祥 

机构地区：[1]二滩水力发电厂,四川攀枝花617000

出　　处：《水力发电》2004年第1期58-59,共2页Water Power

摘　　要：自1997年投入运行以来,二滩水电站第一副厂房直流系统存在着电压波动较大,直流控制母线不能进行自调压,不能实现自动操作和远方监控等问题,不能满足无人值班(少人值守)的要求。技术改造选用了高频开关整流器代替可控硅整流装置,选用JKQ-2000B型中央监控器代替PLC可编程控制器,选用WDCX-2G新型微机直流系统绝缘在线监测及接地故障定位装置代替老型号的绝缘监测装置。改造后运行情况良好,完全能满足机组和辅机设备安全生产运行要求。Since the DC system of Ertan hydropower plant was used in 1997, the voltage of the DC varied greatly and its DC busbar cannot adjust its voltage automatically so that its automatic control and remote control could not reached. After technical transformation, we used the rectifier with high-frequency switch to replace the rectifier with controllable silicon, the JKQ-2000B central controller to replace the PLC, and new WDCX-2G computer-aided control isolation and grounding failure detection apparatus to replace the old equipment. After new equipment was applied, they kept running reliable and safe, promoted the quality of whole DC system.

关 键 词：直流系统 绝缘检测仪 高频开关模块 中央监控器 二滩水电站 

分 类 号：TV736[水利工程—水利水电工程]