The following assumptions are taken into account while performing the short circuit analysis:

1. Shunt elements in the transformer model which is account for magnetizing current and core loss are neglected.

2. Shunt capacitances of the transmission lines are neglected.

3. Shunt resistances are neglected and only inductive reactance of the system is taken into account.

4. The emfs of all the generators are assumed to be equal to 1∠0° per unit.

5. Load currents are neglected because the fault currents are much larger than load currents.

Which of the above are correct?