题目内容
线路正方向发生金属性接地故障时,在保护安装处流过该线路的3
0与母线3
0的相位为( )。
2026-01-24
A.电流超前电压约110°
B.电流滞后电压约70°
C.电流滞后电压约110°
D.电流超前电压约70°
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