660MW机组热工保护误动的原因分析和预防措施

Reason analysis and its preventive measures for thermal protection miss-operation of 660 MW power unit

介绍了热工保护逻辑在660 MW机组的应用,结合相关的热工保护误动资料,总结保护逻辑优化经验,分析热工逻辑保护误动的原因并提出预防措施,提高热工保护的可靠性。

This paper introduced the application of thermal protection logic in 660 MW power unit,combined relevant data of thermal protection miss-operation,summarized the experience of protection logic,analyzed the reason of thermal protection missoperation and proposed corresponding preventive measures that improved the reliability of thermal protection.