Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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4. An open-delta three-phase transformer system has one transformer center-tapped to provide a neutral for single-phase voltages. If the voltage from line to center tap is 277 V, what is the high-leg voltage?
5. If a single-phase load is connected across the two line conductors and neutral of the transformer in Question 4 and one line has a current of 80 A and the other line has a current of 68 A, how much current is flowing in the neutral conductor?
these two go together for the questions I was rejected for question five last time since I did not include question four but i need both of them answered
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- Following are the results of a test carried out on a 230/600 V single phase, 7.5 kVA transformer. O.C. Test : 230 V, 1.2 A, 280 W, on L.V side S.C. Test : LV winding is shorted. 26 V, 11A, 155 W, H.V. Both the full load efficiency and full load regulation of the transformer on the side are 0.8 lagging p.f Search on.arrow_forward1. A 1000-VA 350/140-V transformer has been tested to determine its equivalent circuit. The results of the tests are shown below. Open-circuit test Short-circuit test Voc = 235 V Vsc = 20.1 V loc = 0.57 A Isc = 9.6 A Poc = 34.3 w Psc = 42.7 W All data given were taken from the primary side of the transformer. Evaluate the equivalent circuit of this transformer referred to the low-voltage side of the transformer.arrow_forward
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