三相输电线路导线表面电荷的分布是不均匀的，各点电场强度的大小也不同。
The distribution of surface charges in three-phase transmission lines is uneven and the electric fields of various points are different.
提出了一种用于区分输电线路瞬时性故障和永久性故障的新方法：利用高频通道及其信号区分瞬时性故障和永久性故障，从而实现三相自适应重合闸。
This paper brings forward a whole new scheme of three-phase adaptive reclosure, which uses the carrier channel and its signals to distinguish transient faults and permanent faults.
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