4. A balanced Y-connected 400V voltage source is applied to two balanced loa where Z, = 20-j40 and Z2 = 3+ j45 Ohms and Z, is Y-connected and Z connected. Using base values of Spase 3-phase calculate the source current in per unit. 10KVA and Vpase L-N = 10 %3D

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Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.