电厂就地仪表电磁隔离的应用  

Application of Electromagnetic Isolation of Local Instruments in Power Plant

作　　者：陆文华[1] 程卫国[1] 陈海兵[1] 钱安家[1] 

机构地区：[1]上海发电设备成套设计研究院,上海200240

出　　处：《发电设备》2015年第2期116-119,共4页Power Equipment

摘　　要：针对火力发电机组的现场对讲机、移动电话等通信设备所发出的电磁波会干扰现场就地仪表,使监视和控制仪表的指示发生偏离,严重时甚至会发生机组错误跳机的事故,对就地仪表采取电磁波隔离的措施,分析电磁波的种类,对不同的电磁波类型采取不同的屏蔽和隔离措施,从而消除了电磁波对就地仪表干扰的危害。Local instruments in thermal power plant are generally disturbed by electromagnetic waves emitted by communication devices such as field intercoms and mobile phones,etc.,which may lead to indicating deviation of the monitoring control instruments,in some cases may even cause accidents of false tripping.By analyzing the category of electromagnetic waves,different shielding and isolating measures are proposed,so as to eliminate the interference of electromagnetic waves on relevant local instruments.

关 键 词：电厂 就地仪表 电磁波 屏蔽 隔离 

分 类 号：TM621[电气工程—电力系统及自动化]