A $240$:$120V,60Hz,20$ KVA single phase transformer has the following parameters $($referred to $240$ V winding side$)$

primer leakage inductence $3\mathrm{.}8$ mH

$"$ winding resistonce $1\mathrm{.}28$

seconder leakoge maluctence $4\mathrm{.}35$ mH

$1$ winding resistonce $1\mathrm{.}41$

Magnetiving inductance $,4\mathrm{.}33H$

When load is connected to the LV side, this load absorbes $18$KVA,$0\mathrm{.}95$ lagging off at rated voltage. By using app. eq$.$ ciccuit find;

$V_p=,S_p=,V_R\%=,=$