SA 4000-VA , 680/110-V single-phase transformer has been tested to determine its equivalent circuit. The results of the

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Sa 4000 Va 680 110 V Single Phase Transformer Has Been Tested To Determine Its Equivalent Circuit The Results Of The 1 (27.96 KiB) Viewed 64 times

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