// To calculate voltage and kva rating of 1-ph transformer clc; V_p=33; //primary side voltage(V) V_s=11; //secondary side voltage(V) V_p1=V_p/sqrt(3); //per ph primary side voltage(V) V_p2=V_s/sqrt(3); //per ph secondary side voltage(V) r=6000; //kva rating 3-ph s=r/3; //per phase disp('Y/Y conn'); disp(V_p1,'primary side ph voltage(V)'); disp(V_p2,'secondary side ph voltage(V)'); disp(s,'kva rating of transformer'); disp('Y/D conn'); disp(V_p1,'primary side ph voltage(V)'); disp(V_s,'secondary side ph voltage(V)'); disp(s,'kva rating of transformer'); disp('D/Y conn'); disp(V_p,'primary side ph voltage(V)'); disp(V_p2,'secondary side ph voltage(V)'); disp(s,'kva rating of transformer'); disp('D/D conn'); disp(V_p,'primary side ph voltage(V)'); disp(V_s,'secondary side ph voltage(V)'); disp(s,'kva rating of transformer');