A 50 kVA single-phase transformer has a turns ratio of 300/20. The primary winding is connected to a 2200 V, 50 Hz supply. Calculate:

(a) the secondary voltage on no load;

(b) the approximate values of the primary and secondary currents on full load;

(c) the maximum value of the flux.

Answer :

Part (a) : Secondary voltage =146.66 V

Part (b) : Primary full load current = 22.72 A, secondary full load current = 340.92 A

Part (c) : Maximum flux = 0.033 Wb

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