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IA=0, UB=UC=0 UA=O, IB=IC=O IA=0, IB=-IC, UB=UC IA=0, IB=IC
arg(Ua/Ia) =97°, arg(U1/I1) =122° arg(Ua/Ia) =195°, arg(Ua/Ia) =121° arg(Ua/Ia)=13°, arg (Ua/Ia)=119°
Zs2Ia2≤50V Zs2Ia2≤2U0 Zs2Ia2≤U0 Zs2Ia2≤100V
√3/3IOPA=IOP2 1/3IOPA=IOP2 IOPA=1/3*IOP2
RA·Ia≥150V RA·Ia≤50V RA·Ia≤150V RA·Ia≥50V
I a =nI A ; I a =√3 nI A ; Ia=(n/√3)IA Ia=(1)IA
IA=0, UB=UC=0 UA=0, IB=IC=0 IA=0, IB=-IC UB=UC IA=0, IB=IC
Ia(3)=Ib(9)=Ic(12) Ia(2)=Ib(10)=Ic(6); Ia(4)=Ib(8)=Ic(4); Ia(7)=Ib(8)=Ic(16);
0.4s,Zs2Ia2≤50V 0.8s,Zs2Ia2≤2U0 0.8s,Zs2Ia2≤1/2U0
IB=IC,IA=0 IA=IB=IC IA=IB,IC=0
ΔIa>ΔIc Δ Ia<Δ Ic Δ Ia=Δ Ic Δ Ia≠Δ Ic
Ia=0Ub=Uc=0 Ua=0Ib=Ic=0 Ia=0Ib=-IcUb=Uc Ia=0Ia=Ic
Ia=0 Ub=Uc=0; Ua=0 Ib=Ic=0; Ia=0 Ia=-Ic Ub=Uc; Ia=0 Ia=Ic
B相单相接地 AC两相短路 AB两相短路接地 C相单相接地
0.4s,Zs2Ia2≤50V 0.8s,Zs2Ia2≤2U0 0.8s,Zs2Ia2≤1/2U0