BALANCED DELTA-DELTA CONNECTION

BALANCED DELTA-DELTA CONNECTION

A balanced Δ-Δ system is one in which both the balanced source
and balanced load are Δ-connected.

phase voltages for a Δ- connected source are the ff:
Vab = Vp∠  0°
Vbc = Vp ∠  -120°
Vca = V∠  +120°
phase currents, are the ff:
IAB= VAB/ ZΔ= Vab/ZΔ
IBC= VBC/ ZΔ= Vbc/ZΔ
ICA= VCA/ ZΔ= Vca/ZΔ
line currents are obtained from the phase currents by applying the KCL at nodes A, B, C:
Ia= IAB- ICA        Ib= IBC- IAB
Ic= ICA- IBC


Example
Problem: Three 230-V generators form a delta-connected source that is connected to a balanced
delta-connected load of ZL = 10 + j8 Ω per phase as shown in Fig. 12.52.
(a) Determine the value of IAC.
(b) What is the value of Ib?

Solution: 



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