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categoryالهندسة الكهربائية schoolبكالوريوس event_available2026-07-15

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For this system shown, calculate the p.u for each component and draw the p.u. reactance diagram, with all reactances marked in per-unit (p.u.) values, and find the generator terminal voltage assuming both motors operating at 12 kV, three- quarters load, and unity power factor. (Note: select S(base) = 25 MVA and V(base) for the generator of 13.8 kV) Transformers Generator (each) 13.8 kV 25,000 kVA 25,000 kVA Three-phase X" = 15 percent 13.2/69 kV XL = 11 percent Motor A Transmission line Motor B 10,000 kVA X = 652 15,000 kVA 13.0 kV X" = 15 percent 13.0 kV X" 15 percent T₂ Δ Δ B

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