摘要
从10.5kV厂用中压母线差动保护原理出发,探讨了中压母线差动保护CT极性的校验方法,详细分析了一次通流试验方法在AP1000核电站的中压母线差动保护CT极性校验中的应用、试验的设备容量计算及设备选型方法和试验程序,解决了AP1000核电站中压母线投运前其差动保护CT极性校验难题。并对两种校验方法的优劣进行了对比分析。
From 10.5 kV plant in medium voltage busbar differential protection principle, discusses the medium voltage busbar differential protection CT polarity checking method, analyzed the flow test method of AP1000 nuclear power station in a medium voltage busbar differential protection, the application of CT polarity checking and test equipment capacity calculation and equipment selection method and the test procedure, solve the medium voltage busbar AP1000 nuclear power station put into operation before the differential protection CT polarity checking problem. And compares the merits of the two calibration methods of analysis.
出处
《电气技术》
2014年第1期68-70,共3页
Electrical Engineering
关键词
厂用中压母线
差动保护
极性校验
方法
plant medium voltage busbar
differential protection
polarity check
methods
