Main duties of relay protection are correctly and quickly judging and clearing system faults, which greatly derive voltage sags in a distribution system.
系统中大部分电压跌落由故障引起，快速可靠地判断并切除故障是继电保护的主要职责。
Main duties of relay protection are correctly and quickly judging and clearing system faults, which greatly derive voltage sags in a distribution system.
系统中大部分电压跌落由故障引起，快速可靠地判断并切除故障是继电保护的主要职责。
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