The algorithm also remains stable during magnetizing inrush and over-excitation, and is not affected by changing the core characteristics. 同时该方案不受变压器励磁涌流的影响，并且在内部故障时有较高的灵敏度。
According to the direct current component of the generalized instantaneous power flowing into the two-terminal network, magnetizing inrush and internal fault can be distinguished. 根据输入端口的广义瞬时功率直流分量的大小，来区分励磁涌流和内部故障电流。
