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Considering Figure, let balanced positive-sequence, three-phase voltages with ¯VAB = 100√3 0° V (rms) be applied to terminals A, B, and C. The three-phase wye-connected balanced load consists of a per-phase impedance of (10 + j10). Determine the wattmeter readings of WA and WC. Then find the total three-phase real and reactive powers delivered to the load. Based on the wattmeter readings of WA and WC, compute the load power factor and check the sign associated with the power factor angle.
Question The diagrams below depict a modulation (left) and a demodulation(right). (a) Express y(t), u(t) and z (t). (b) What may happen to the demodulated signal y
Q. A 25-kVA, 2400/240-V, 60-Hz, single-phase transformer has an equivalent series impedance of 3.45 + j5.75 referred to the primary high voltage side. The core loss is 120 W. Whe
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When you have a three phase short circuit of power cables laid in a trefoil formation they repel apart very dramatically. Why is this and what is happening?
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