摘要
针对衡水发电厂重要辅机轴承温度保护误动问题， 提出了在ＳＣＳ逻辑中加入超限和延时的判断、改变跳闸条件、热阻改热偶、温度限速４ 种改进方法， 并对各个方案进行了比较分析。
Since malfunction of bearing temperature protection of important auxiliaries occurred in Hengshui Power Plant,four following solutions are suggested and compared:to insert an over limit and delay identification circuit in the SCS logic,to reform tripping conditions,to change thermal resistors into thermal couples,and to limit temperature change rate.
出处
《河北电力技术》
1999年第5期35-37,共3页
Hebei Electric Power
关键词
辅机
轴承
温度保护
技术改造
发电厂
bearing temperature protection innvation configuration speed
