// Example 1.65 clc;clear;close; // Given data format('v',6); P=6;//no. of poles f1=50;//in Hz S0=1;//in % Sfl=3;//in % //calculations S0=S0/100;//slip Sfl=Sfl/100;//slip Ns=120*f1/P;//in rpm disp(Ns,"(a) Synchronous speed in rpm : "); N0=(1-S0)*Ns;//in rpm disp(N0,"(b) No Load speed in rpm : "); Nfl=(1-Sfl)*Ns;//in rpm disp(Ns,"(c) Full load speed in rpm : "); f2_st=f1*S0;//in Hz disp(f2_st,"(d) Frequeny of rotor current at standstill in Hz : "); f2_fl=f1*Sfl;//in Hz disp(f2_fl,"(e) Frequeny of rotor current at full load in Hz : "); //Answer of part (c) & part(d) is wrong. Calcultion mistake & slip is not divided by 100.