Engineering, 19.03.2021 06:20, cmb6627

A 15 kVA , 4150/240 V, single phase transformer, has a core loss at rated voltage of 120W. Its per unit reactance is 0.01 and per unit resistance is 0.06. a)What is the primary side (HV side) voltage to have 240V at secondary side (LV side) terminals when the load on the low voltage side is 12kVA at 0.8 power factor lagging b)What is the efficiency of the transformer c)At what kVA does this transformer have its maximum efficiency

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A 15 kVA , 4150/240 V, single phase transformer, has a core loss at rated voltage of 120W. Its per u...