该方法有效地拉大了故障馈线与非故障馈线故障判断量的差距，极大地提高了保护裕度。
This method increased effectively the difference of the fault judging quantity in fault feeder and non-fault feeder, and the protecting abundant degree has been also greatly enhanced.
该方法有效地拉大了故障馈线与非故障馈线故障判断量的差距，极大地提高了保护裕度。
This method increased effectively the difference of the fault judging quantity in fault feeder and non-fault feeder, and the protecting abundant degree has been also greatly enhanced.
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