华电能源牡丹江第二发电厂自有铁道线路6502电气集中联锁控制系统于1989年建成并投入使用以来,绝大多数的信号继电器参数变化较大、故障率高,其缓放时间达不到规定的3￣4 s。80%的熔丝报警继电器已经严重损坏,一旦发生熔丝烧断,很难在最短时间内判断出故障点,严重影响调车作业效率,对安全调车作业构成严重威胁。所以,对6502电气集中系统实施MCIS模块化双机热备系统技术改造是非常必要的。 Huadian Power Mudanjiang No. 2 Power Plant Owned Railway 6502 Electric Centralized Interlock Control System was built in 1989 and put into use, the vast majority of signal relay parameters vary greatly, the failure rate is high, the relaxation time is less than the provisions Of 3 ~ 4 s. 80% of the fuse alarm relay has been severely damaged, once the fuse blows, it is difficult to determine the point of failure in the shortest possible time, seriously affecting shunting efficiency, a serious threat to the safety of shunting operations. Therefore, it is very necessary to implement the MCIS modular dual-system thermal backup system on the 6502 electrical centralized system.