Question: Three 1 5 0 kVA, 4 8 0 V / 4 0 0 0 V , 6 0 Hz single phase transformers are to be

Three 150kVA, 480V/4000V,60 Hz single phase transformers are to be installed on a 4000V,3-phase line. The exciting current has a value of 0.02 per unit. Calculate the line current when transformers are operating a no-load.

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