// Example 1.61 clc;clear;close; // Given data IscByIfl=3*180/100;//ratio TstByTfl=35/100;//ratio X=75;//tapping in % //calculations X=X/100;//tapping //Star delta starting //Formula : TstByTfl=1/3*IscByIfl*Sfl Sfl=TstByTfl*3/IscByIfl^2;//slip at full load //Auto transformer starting IstByIsc=X^2;//ratio IstByIfl=X^2*IscByIfl;//ratio disp("Starting current is "+string(IstByIfl*100)+"% of fulll load current."); TstByTfl=X^2*IscByIfl^2*Sfl;//ratio disp("Starting torque is "+string(TstByTfl*100)+"% of fulll load torque."); //Answer of starting current in terms of full load curremt is not given in the book.