Problem:

The measurements obtained from open$-$ and short$-$ circuit tests on a $50-$kVA,$\frac{2400}{240}-V,60$ Hz $,$ single$-$phase transformer are tabulated below. Determine the parameters of the equivalent circuit refereed to the high voltage side $($i$.$e$.,R_{c_{HV}},x_{m_{HV}},R_{e1},x_{e1})$

$\backslash$table$[[$Type of Test,Voltage $($V$),$Current $($A$),$Power $($W$)],[$Open$-$circuit test,$240,5\mathrm{.}4,186],[$Sort$-$circuit test,$48,20\mathrm{.}8,620]]$