Zasilanie z transformatora B
I = I(cosφ – jsinφ)
cosφ=0,9 sinφ=0,44
I45 =42 [A]
I34 = I4 + I45 = 42 +47 =89 [A]
I23 = I3 + I34 = 47 +89 =136 [A]
I12 = I3 + I34 = 57 +136 =193 [A]
IB1 = I1 + I12 = 44,75 +193 =237,75 [A]
I = I(cosφ – jsinφ)
I45 = I45(cosφ – jsinφ)=42(0,9 - j0,44)=37,8 - j18,48 [A]
I34 = 80,1 – 39,16 [A]
I23 = 122,4 - j59,84 [A]
I12 = 173,7 – j84,92 [A]
IB1 = 213,975 - j104,61 [A]
Części czynne i bierne prądów :
- części czynne: - części bierne:
I′45 = 37,8 [A] I″45 =18,48 [A]
I′34 = 80,1 [A] I″34 = 39,16 [A]
I′23 = 122,4 [A] I″23 = 59,84 [A]
I′12 = 173,7 [A] I″12 =84,92[A]
I′B1 = 213,975 [A] I″B1 =104,61 [A]
Spadki napięć na elementach sieci:
ΔU45 = √3·(37,8·0,44·8,5+18,48·0,4·8,5)=353,27 [V]
ΔU34 = √3·(80,1·0,44·7,2+39,16·0,4·7,2)= 634,11[V]
ΔU23 = √3·(122,4·0,44·4+59,84·0,4·4)= 538,3[V]
ΔU12 = √3·(173,7·0,44·4+84,92·0,4·4)= 763,94[V]
ΔUB1 =√3·(213,975·0,44·5,5+104,61·0,4·5,5)= 1293,97[V]
Napięcia u poszczególnych odbiorców:
U1 = 15000 - ΔUA1 = 13706,03 [V]
U2 = 15000 - ΔUA1 - ΔU12 = 12942,09[V]
U3 = 15000 - ΔUA1 - ΔU12 - ΔU23 = 12403,79[V]
U4= 15000 - ΔUA1 - ΔU12 - ΔU23 - ΔU34 = 11769,68[V]
U5 = 15000 - ΔUA1 - ΔU12 - ΔU23 - ΔU34 - ΔU45 = 11416,41[V]