//CHAPTER 3- THREE-PHASE A.C. CIRCUITS //Example 6 disp("CHAPTER 3"); disp("EXAMPLE 6"); //VARIABLE INITIALIZATION v_l=3300; //in Volts p_out=1500*735.5; //in Watts as 1 metric horsepower= 735.498W eff=0.85; pow_fact=0.81; //SOLUTION //solution (a) p_in=p_out/eff; disp(sprintf("(a) The motor input is %f kW",p_in/1000)); //solution (b) I=p_in/(sqrt(3)*v_l*pow_fact); disp(sprintf("(b) The line and phase current of the alternator is %f A",I)); //solution (c) I_l=I; I_ph=I_l/sqrt(3); disp(sprintf("(c) The line current of the motor is %f A",I_l)); disp(sprintf("The phase current of the motor is %f A",I_ph)); //Answers may be different due to precision of floating point numbers //END