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Problem 4: A single phase 60 Hz two-winding power transformer is rated at 2400V/240V and 100...

Problem 4: A single phase 60 Hz two-winding power transformer is rated at 2400V/240V and 100 kVA. If an
autotransformer is built from this conventional transformer to supply a load at 2400V with supply voltage
2640V. Draw the autotransformer and calculate the voltage, current and apparent power rating of the auto
transformer. Also calculate the apparent power rating advantage of autotransformer over conventional
transformer.

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