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A three-phase, 415V load takes a line current of 750A from a 3000/415 V delta-star transformer.
The 3 kV system is supplied from a 11/3 kV kV star-star transformer.
Assuming no losses;
(a) Draw the circuit diagram.
(b) Calculate line and phase values of voltages and currents in each part of the circuit, and the turns ratio of each transformer.
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