TV二次回路中性线N600两点接地分析及查找

Analysis and search of two-point ground fault in TV secondary circuit neutral line N600

结合现场实际案例对电压互感器TV二次回路存在两点接地进行查找,证明在运行的变电站或电厂在不停电情况下采用文中的方法查找电压互感器TV二次回路(N600)多个接地点是可行的和实用的。

Combined with practical case, this paper searched for two-point ground fauh in potential transformer TV secondary circuit, and proved that using the way in the paper to search for multiple ground points of potential transformer TV secondary circuit （N600） without power cut in operational substations and power plants was feasible and practical.