UNIT – I

A single phase transformer with a ratio of 6.6. kV/415 V takes a no-load current of 0.75 A at 0.22 p.f. If the secondary supplies a current of 120 A at 0.8 p.f. calculate the total current taken by the primary. Or (ii) (i) Develop an equivalent circuit for a single phase two winding transformer. ................
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