Given a balanced three-phase system - Δ-connected load with an impedance of 12 + j9 Ω/ϕ - Y-connected source - with an acb sequence - source voltage in the b-phase: 240∠-50⁰ - line impedance: 1 + j1 Ω/ϕ Determine the current in the a-phase of the load IaA Blank 1 A (rms) EXPRESS YOUR ANSWER IN POLAR FORM

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Q: 1. Assume that a 2.5-kV 1-phase circuit feeds a load of 450 kW at a lagging load power factor and…

A: Calculate the initial power factor of the circuit. Ps=VIcosϕcosϕ=PsVI=450×103 W2.5×103 V215 A=0.837

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A: Zs△ϕ=(0.018+j0.162) ohm/phaseZsyϕ=Zs△ϕ3=0.018+j0.1623     =(6×103+j0.053)ohmZline=(0.074+j0.296)…

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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.