输电压220v:I=220/(0.22*0.8*√3)=721.7A 输电线上损失的功p=i²R=721.7²*4=2083455W
输电压220kv I=220/(220*0.8*√3)=0.7217A输电线上损失的功p=i²R=0,7217²*4=2.083455W
输电压220v:I=220/(0.22*0.8*√3)=721.7A 输电线上损失的功p=i²R=721.7²*4=2083455W
输电压220kv I=220/(220*0.8*√3)=0.7217A输电线上损失的功p=i²R=0,7217²*4=2.083455W