摘要
火电厂继电保护二次回路故障会让保护装置拒动或误动,导致电气设备运行不稳定,影响机组的安全运行。为了降低继电保护二次回路故障发生率,本文在概述继电保护二次回路排查必要性的基础上,对二次回路常见的故障及排除方法进行总结,并提出了提高继电保护二次回路稳定性的措施,更好地减少二次回路故障,确保继电保护装置正确动作,提高机组运行稳定性。
The secondary circuit fault of thermal power plant relay protection will make the protective device refuse to operate or misoperate,resulting in unstable operation of electrical equipment,affecting the safe operation of units.In order to reduce the failure rate of the secondary circuit of relay protection,the paper summarizes the common failures of the secondary circuit and the troubleshooting methods on the basis of summarizing the necessity of checking the secondary circuit of relay protection,the measures to improve the stability of the secondary circuit of relay protection are put forward to reduce the secondary circuit fault,ensure the correct operation of the relay protection device and improve the operation stability of the unit.
作者
李冬
Li Dong(CHN ENERGY Jinjie Energy Co.,Ltd.,Shan'xi,Shenmu,719319,China)
出处
《仪器仪表用户》
2023年第8期88-90,共3页
Instrumentation
关键词
火电厂
继电保护
二次回路
thermal power plant
relay protection
secondary circuit
