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A balanced three-phase Y-connected supply delivers power through a three-wire plus
Chapter 12, Problem P12.3-2(choose chapter or problem)
A balanced three-phase Y-connected supply delivers power through a three-wire plus neutral-wire circuit in a large office building to a three-phase Y-connected load. The circuit operates at 60 Hz. The phase voltages of the Y-connected source are \(\mathrm{V}_{\mathrm{a}}=120 \angle 0^{\circ} \mathrm{V}\) rms, \(\mathrm{V}_{\mathrm{b}}=120\) \(\angle-120^{\circ} \mathrm{V}\) rms, and \(\mathbf{V}_c=120 \angle 120^{\circ}\) V rms. Each transmission wire, including the neutral wire, has a \(2-\Omega\) resistance, and the balanced Y load has a \(10-\Omega\) resistance in series with 100 mH. Find the line voltage and the phase current at the load.
Questions & Answers
QUESTION:
A balanced three-phase Y-connected supply delivers power through a three-wire plus neutral-wire circuit in a large office building to a three-phase Y-connected load. The circuit operates at 60 Hz. The phase voltages of the Y-connected source are \(\mathrm{V}_{\mathrm{a}}=120 \angle 0^{\circ} \mathrm{V}\) rms, \(\mathrm{V}_{\mathrm{b}}=120\) \(\angle-120^{\circ} \mathrm{V}\) rms, and \(\mathbf{V}_c=120 \angle 120^{\circ}\) V rms. Each transmission wire, including the neutral wire, has a \(2-\Omega\) resistance, and the balanced Y load has a \(10-\Omega\) resistance in series with 100 mH. Find the line voltage and the phase current at the load.
ANSWER:Step 1 of 6
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