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Question: problem 451 the first half is at the bottom of...

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its efficiency and voltage regulation when the power factor is 0.8 la What are the nominal voltage and power rating of the three former? ree-phase trans 4.50. If the three transformers of Problem 4.47 are connected in A what are the nominal voltage and power rating of the three-phase transfo For a load of 100 kVA, 70.7 kW (lagging) at the rated voltage, determi primary voltage, (b) the primary and the secondary winding (a) (c) the efficiency, and (d) the voltage regulation. currents, 4.51. A three-phase generator is connected to a three-phase load via a 230 4/Y-connected, three-phase, step-up transformer, a short transmission line, and a 2300/230 V, cted, step-down transformer. phase winding resistance and the leakage reactance as referred to the high-voltage side for each transformer are 1.2 n and 4.8 n, respectively. The impedance of the transmission line is 2.5 j2.1 n. The per phase

Problem 4.51

The first half is at the bottom of the first picture, the second part of the problem is at the top of the next picture

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