A 15-kVA, 2400/240-V transformer is to be tested to determine its excitation branch components, its series impedances and its voltage regulation. The following test data have been taken from the primary side of the transformer: Open- circuit test Short- circuit test Voc = 2400 V Vsc = 48 V loc = 0.25 A Isc = 6.0 A Poc = 50 W Psc = 200 W The data have been taken by using the connections of open-circuit test and short- circuit test: a)Find the equivalent circuit transformer referred to the high-voltage side. of this b)Find the equivalent circuit of this transformer referred to the low-voltage side c)Calculate the full-load voltage regulation at 0.8 lagging power factor and 0.8 leading power factor