摘要
综述了TA二次断线的检测方法,并分析了这些方法在冲击性负荷供电线路中使用的局限性,提出了一种新的TA二次断线检测方法。该方法可以有效检测出冲击性负荷供电线路运行过程中的TA二次断线,并能有效防止TA二次断线引起的差动保护误动。
This paper overviewed methods in detecting TA＇s second loop break, and analyzed the limitations of these methods used in the transmission line with surge load, and then proposed a new method for detection of TA＇s second loop break. This method can effectively prevent the differential protection equipment from maloperation due to the break of TA＇s second loop.
出处
《电网与清洁能源》
2011年第1期32-34,共3页
Power System and Clean Energy
关键词
光纤纵差保护
TA二次断线
电流互感器断线
line differential protection
TA＇s second loopbreak
current transformer disconnection
