A balanced Y-connected voltage source with E _ag = 277/0 ⁰ volts is applied to a balanced-Y load in parallel with a balanced-∆ load, where ZY = 20 + j10 and ZΔ = 30 − j15 ohms. The Y load is solidly grounded. Using base values of Sbase1φ = 10 kVA and VbaseLN = 277 volts, calculate the source current Ia in per-unit and in amperes.

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Step 1 Consider the following data The Source Voltage Impedance of Y connected load Base Voltage bas... View the full answer