A 3-phase transmission line operating at 33 kV and having a resistance of 5 and reactance

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Question:

A 3-phase transmission line operating at 33 kV and having a resistance of 5 Ω and reactance of 20 Ω is connected to the generating station through 15,000 kVA step-up transformer. Connected to the bus-bar are two alternators, one of 10,000 kVA with 10% reactance and another of 5000 kVA with 7·5% reactance.
Calculate the short-circuit kVA fed to the symmetrical fault between phases if it occurs
(i) at the load end of transmission line
(ii) at the high voltage terminals of the transformer
[(i) 44,500 kVA (ii) 100,000 kVA]