SA 4000-VA , 680/110-V single-phase transformer has been tested to determine its equivalent circuit. The results of the
Posted: Sat Mar 19, 2022 6:15 pm
SA 4000-VA , 680/110-V single-phase transformer has been tested to determine its equivalent circuit. The results of the tests are shown below: Open-circuit test (low-voltage side): Voc = 110 V , loc=0.3 A, Poc=4.5 W Short-circuit test (high-voltage side): Vse = 22.5 V, Isc=15.3A, Psc= 101.1 W (a) Find the equivalent circuit of this transformer referred to the low-voltage side of the transformer. (b) Find the transformer's voltage regulation at rated conditions and 0.8 lagging power factor