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1.电液转换器直接关系到自动运行的可靠性据不完全调查表明,全国约有60%的电调存在着:差动活塞的自定中心孔容易堵塞、控制套发卡、线圈与磁钢摩擦等缺陷,造成特性不稳定,调节系统抽动、失去液压平衡及溜负荷现象,有时还会甩去全部负荷,严重威胁机组的安全运行。2.机组手动消缺自动状态下调试避免了停机影响调速器的关键部件发生故障,以往处理时要停机,有时为做必要的试验还须放落上游闸门或关闭蝴蝶阀,结果增加了临修次数,使电厂的主要指标受到影响,同时给系统调度带来麻烦。陈村水电站
1. Electro-hydraulic converter is directly related to the reliability of automatic operation According to incomplete surveys show that there are about 60% of the ESC there: the differential piston easy to plug the center hole, control card sets, coils and magnets Friction and other defects, resulting in instability, regulating system twitching, loss of hydraulic balance and slip load phenomenon, and sometimes will throw off all the load, a serious threat to the safe operation of the unit. 2.Manual shortage of unit automatic commissioning to avoid downtime to prevent the governor of the key components of failure, the previous treatment to shut down, and sometimes to do the necessary tests must be put down the upstream gate or butterfly valve closed, the result increased The number of repairs, so that the main indicators of power plants are affected, while bringing trouble to the system scheduling. Chencun hydropower station