A transformer has an input of 150 kVA with the power factor of 0.9 (lagging)when supplying a load of 140 kVA at the power factor of 0.8 (lagging). The transformer efficiency and the reactive power consumed are: (a)82.3% and 18.6 VAr (b)82.3% and –-18.6 VAr 92.3% and -149.4 VAr (d)82.3% and 149.4 VAr (e)82.3% and –149.4 VAr

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