A-kva, 2300/2302300/230-v distribution transformer has the following resistances and reactances:
r1=3.8? ; r2=0.05? ; r1=3.8? ; r2=0.05? ;
x1=7? ; x2=0.06? ; x1=7? ; x2=0.06? ;
rc=60k? ; xm=56k? ; rc=60k? ; xm=56k? ;
r1,x1 and the excitation branch ( rc and xm) impedances are referred to the primary (high voltage) side of the transformer.

r2 and x2 are referred to the secondary (low-voltage) side. use the approximate nonideal model (cantilever model).

the transformer primary is connected to a 2400vvolt source (i. e. slightly voltage overloaded).

consider that the secondary of the transformer is not connected to a load (open-circuited).