Find the efficiency of the autotransformer

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A 20 kVA, 2000/200 V, two-winding transformer is to be used as an autotransformer, with a constant source voltage of 2000 V. At full-load of unity power factor, calculate the power output, power transformed and power conducted. If the efficiency of the twowinding transformer at 0.7 pf is 97%, find the efficiency of the autotransformer.

Reference no: EM131266031

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