Two transformers each rated 115 kV/13.2 kV operate in parallel to supply a load
of 35 MVA at 0.8 power factor lagging. Transformer 1 is rated at 20 MVA with 9% reactance,
and transformer 2 is rated at 15 MVA with 7% reactance.
a. (5 points) Find the reactance in ohms of each transformer referred to the low voltage side.
b. (5 points) If the answer to part a. is 0.9 ohms and 1.0 ohms, respectively (it's not), find the
apparent power supplied to the load from each transformer, $S_1$ and $S_2$.