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+//CHAPTER 7- SINGLE PHASE TRANSFORMER
+//Example 34
+
+disp("CHAPTER 7");
+disp("EXAMPLE 34");
+
+//VARIABLE INITIALIZATION
+va=50000;                               //apparent power
+I2=200;                                 //secondary full load current
+R1=0.55;
+R2=0.023;
+pf=0.8;
+//turn ratio
+K=1/5;
+//SOLUTION  
+R_dash_1=K^2*R1;
+R_e2=R2+R_dash_1;
+Pcu=I2^2*R_e2;
+//cu loss at 2/3 of the load
+Pcu23=(2/3)^2*Pcu;
+Pc=Pcu23;                               //at maximum efficiency Pc=Pcu
+//full load output
+Pout=va*pf;
+loss=Pc+Pcu;                            //at full load
+Pin=Pout+loss;
+eff=Pout*100/Pin;
+disp(sprintf("The percent efficiency at full load is %f",eff)); 
+disp(" "); 
+// 
+//END