Question#4 a 100-kva 8000/277-v distribution transformer has the following resistances and reactances:
rp = 5 ohm
rs = 5 miliohm
xp = 6 ohm
xs = 6 miliohm
rc = 50 kilo ohm
xm = 10 kilo ohm
the excitation branch impedances are given referred to the high-voltage side of the transformer.
(a) find the equivalent circuit of this transformer referred to the low-voltage side.
(b) find the per-unit equivalent circuit of this transformer.
(c) assume that this transformer is supplying rated load at 277 v a