摘要
电厂卸煤变差动保护发生误动作现象,我们对其保护回路进行了具体研究,结合相应的保护原理,着重由电流互感器的特性入手,经过分析检验,得到结论,由于电流互感器二次负载超出了额定负载,导致差动保护误动作。
The phenomenon of malfunction of differential protection for coal unloading inpower plant often appears, this paper researches the protection of the circuit. Based on the related protection principles, the characteristics of the current transformer are analyzed and tested, and the results are obtained that, because the twice load of the current transformer beyond the rated load, the malfunction of differential protection will appear.
出处
《价值工程》
2016年第29期127-128,共2页
Value Engineering
关键词
差动保护
误动作
电流互感器
二次负荷
differential protection
malfunction
current transformer
secondary load
