initial commit / add all books

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+// to find the frequency and phase and line voltages

+

+clc;

+n=375;        //speed in rpm

+p=16;        //no of poles

+f=n*p/120;

+disp(f,'freq(Hz)');

+S=144;        //no of slots

+c=10;        //no of conductors/slot

+t=S*c/2;        //no of turns

+ph=3;

+N_ph=t/ph;    //no of turns/ph

+g=180*p/S;    //slots angle

+m=S/(p*ph);    //slots/pole/phase

+K_b=sind(m*g/2)/(m*sind(g/2));    //breadth factor

+phi=0.04;    //flux per pole

+E_p=4.44*K_b*f*N_ph*phi;

+disp(E_p,'phase voltage(V)');

+E_l=sqrt(3)*E_p;

+disp(E_l,'line voltage(V)');