摘要
改造前,兖矿鲁南化肥厂8#、9#锅炉高压电动机控制和保护系统使用的是上世纪80年代生产电磁式继电器,元器件数量多,器件多为电子、电力分立元件,器件间的性能配合误差大,准确性差,保护拒动作、误动作时有发生,没有保护事件纪录,各种变量、参数无法实时显示,纪录功能不能直观地显示工作状态,保护数据;保护回路和控制回路接线复杂,引线较多,所需的校验仪器种类多,造成维修、校验工作量大。在历年大修时需加班加点地进行校验,即费时又费力。加上多年的运行使保护装置元件性能变差,在一定程度上已不能保证锅炉的安全稳定运行。经过多方分析讨论决定对8#、9#锅炉!高压电动机控制和保护系统实施改造,改造中完全采用已经取得良好效果的RCS-9000系列B型电动机保护测控装置。
the:transformation of the former,the use of Yankuang Lunan Chemical Fertilizer Plant of 8#,9# highpressure boiler motor control and protection system is the last century 80's production of electromagnetic relay,number of components,devices for electronic,electric power discrete components,performance among the devices with large error,poor accuracy,protection misoperation,misoperation occurs without protection,event record,variables,parameters can not be realtime display,record function cannot visually display the working state,data protection;protection circuit and control circuit wiring complex,lead more,check instrument types required by multiple,repair,calibration workload.In previous years the overhaul is required to work overtime to check,that is time-consuming and laborious.And many years of operation of the protection device components performance variation,to a certain extent,has been unable to ensure the safe and stable operation of the boiler.After careful analysis to discuss and decide on the implementation of the transformation of 8#,9# high—pressure boiler motor control and protection system,complete with has achieved good results of the RCS 9000 series B transformation,Motor protection and control device.
