losses in X`mer

[modi_elect2002]

which are the formulas to find out the losses of x`mer

if i have a x`mer of following specification pls, show me the calculation.

3000 kVA, DY11,
11kv/6.6kv,
% impedenance 5.26%,

 

[jghrist]

Calculation of losses is not possible with the information provided. You need loss test data.

 

[zog]

(Vp*Ip)-(Vs*Is)