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+// Calculating the current in rotor bars and in end rings

+clc;

+disp('Example 10.19, Page No. = 10.50')

+// Given Data

+p = 6;// Number of poles

+ms = 3;// Number of phases of stator

+Nss = 72;// Number of stator slots

+Nc = 15;// Number of conductors per slot

+Sr = 55;// Number of stator slots

+Is = 24.1;// Stator current (in Ampere)

+Coil_Span = 11;// Coil span (slots)

+pf = 0.83;// Power factor

+// Calculation of the current in rotor bars and in end rings

+q = Nss/(ms*p);// Stator slots per pole per phase

+Kd = sin(60/2*%pi/180)/(q*sin(60/(2*4)*%pi/180));// Distribution factor

+Ns_pole = Nss/p;// Slots per pole

+alpha = 1/Ns_pole*180;// Angle of chording (in degree).  Since the winding is chorded by 1 slot pitch

+Kp = cos(alpha/2*%pi/180);// Pitch factor

+Kws = Kd*Kp;// Stator winding factor

+Ir_ = Is*pf;// Stator current equivalent to rotor current (in Ampere)

+Ns = Nss*Nc;// Total stator conductors

+Ts = Ns/(ms*2);// Stator turns per phase

+Ib = 2*ms*Kws*Ts*Ir_/Sr;// Current in each rotor bar (in Ampere)

+Ie = Sr*Ib/(%pi*p);// Current in each end ring (in Ampere)

+disp(Ib,'Current in each rotor bar (Ampere) =');

+disp(Ie,'Current in each end ring (Ampere) =');

+//in book answers are 375.4 Ampere and 1095.3 Ampere respectively.  The answers vary due to round off error