, , . :
Ʃ P=Ʃ I2R, P=U*I.
Ʃ P=+i1E1 + i2E2+i3E3+i4E4+i5E5-iJUJ= +0.54*2+8.04*50+6.89*40+8.58*30+2.31*20-
-4*8.45=948.64[]
Ʃ I2R= +i12*R1+i22 *R2+i32 *R3+i42 *R4+i52 *R5+i72 *R7+i82 *R8= +(0.54)2*6+(8.04)2*4+(6.89)2*5+(8.58)2*4+(2.31)2*5+(6.35)2*3+(1.69)2*3=948.64[]
4
.
4. .
V1=|ϕ1-ϕ2|; ϕ1=ϕ2+I3R3-E3+I6R6-E6
V1=ϕ2+I3R3-E3+I6R6-E6-ϕ2=6.89*5-40+0-50=55.55[B]
V2=|ϕ3-ϕ4|; ϕ3=ϕ4-I4R4-E2+I2R2
V2=ϕ4-I4R4-E2+I2R2-ϕ4=-8.57*4-30+8.04*4=32.12[B]
5
.
, .
5. .
, . 2 3 . 2 3( 2 ).
G11ϕ11+G12ϕ22+G13ϕ33+G14ϕ44=I11
G21ϕ11+G22ϕ22+G23ϕ33+G24ϕ44=I22
G31ϕ11+G32ϕ22+G33ϕ33+G34ϕ44=I33
G41ϕ11+G42ϕ22+G43ϕ33+G44ϕ44=I44
:
G11=1/R1+1/R3+1/R7=1/6+1/5+1/3=0.7[]
G22=1/R1+1/R4=1/6+1/4=0.42[]
G33=1/R5+1/R7=1/5+1/3=0.53[]
G44=1/R3+1/R4+1/R8=1/5+1/4+1/3=0.78[]
G12=G21=-1/R1=-1.6=-0.16[]
G13=G31=-1/R7=-1/3=-0.33[]
G14=G41=-1/R3=-1/5=-0.2[]
G23=G32= =0 []
G24=G42=-1/R4=-1/4=-0.25[]
G34=G43= =0[C]
I11=E1/R1-E3/R3=2/6-40/5=-7.66[A]
I22=-E1/R1+E4/R4=-2/6+30/4=7.17[A]
I33=E5/R5-I=20/5-4=0[A]
I44=E3/R3-E4/R4=40/5-30/4=0.5[A]
.
0,7ϕ11-0,17ϕ22-0,33ϕ33-0,2ϕ44=-7,66
-0,17ϕ11+0,42ϕ22-0ϕ33-0,25ϕ44=7,17
-0,33ϕ11-0ϕ22+0,53ϕ33-0ϕ44=0
-0,2ϕ11-0,25ϕ22-0ϕ33+0,78ϕ44=0,5
, :
ϕ11=-8,93[B], ϕ22=15.64[B],ϕ33=-5.58[B],ϕ44=3.35[B],
UXX=ϕ22-ϕ33=15.64-(-5.58)=21.22[B].
. .
R2,=R1*R4/R1+R4+R3=6*4/6+4+5=1.6[]
R1,=R1*R3/R1+R4+R3=6*5/6+4+5=2[]
R4,=R4*R3/R1+R4+R3=4*5/6+4+5=1.33[]
R=R2,+(R1,+R7)(R4,+R8+R5)/R1,+R7+R4,+R8+R5=1.6+(2+3)(1.33+3+5)/2+3+1.33+3+5=4.86[]
i2=UXX+E2/R+R2=21.22+50/4.86+4=8.04[A]
|
|
i,2=-2i2
i,2=UXX+E2-E/R+R2=-2i2
E=UXX+E2+2i2(R+R2)=21.22+50+2*8.04*(4.86+4)=213.66[B]
6