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56 Power systems engineering ± fundamental concepts

I b I b I c I c I a I a
c

I I ca
ca
+jG ab –jG ab
–jG ab
+jG ab
√ 3 √ 3
√3
√3
I I bc
bc

b G ab I I ab a
ab
G ab
Fig. 2.26 Steinmetz network with balanced line currents.

I V ab
V ab
ca
I c I c I ca
V ca
V ca
I ab
I ab
0 I=I bca a I=I bc
I b I b

V bc
V bc
Fig. 2.27 Phasor diagram for Steinmetz network.

Fig. 2.28 Balanced network resulting from compensation of G ab with the Steinmetz network.