A 100 kVA, 2,000/400V, single-phase two-winding transformer is to be used as an autotransformer for stepping up the voltage from 2,000 V to 2,400 V. At rated load, the two-winding transformer has 2.4...

A 100 kVA, 2,000/400V, single-phase two-winding transformer is to be used as an autotransformer for stepping up the voltage from 2,000 V to 2,400 V. At rated load, the two-winding transformer has 2.4 per cent loss, 3.4 per cent voltage regulation and 4.2 per cent impedance. Calculate the following for an autotransformer:

(i) Voltage and current rating.

(ii) kVA rating.

(iii) Efficiency.

(iv) Percentage impedance.

(v) Regulation.

(vi) Short circuit current on each side.