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+
+// ELECTRICAL MACHINES
+// R.K.Srivastava
+// First Impression 2011
+// CENGAGE LEARNING INDIA PVT. LTD
+
+// CHAPTER : 5 : INDUCTION MACHINES
+
+// EXAMPLE : 5.17
+
+clear ; clc ; close ; // Clear the work space and console
+
+
+// GIVEN DATA
+
+printf("\n EXAMPLE : 5.17 : \n\n          Given Data No-load test : 440V, 3.0A, 500KW, 50Hz \n");
+printf("\n          Blocked rotor test at rated frequency : 110V, 18A, 2500W, 50Hz \n");
+printf("\n          DC test on Stator per phase : 10V, 15A \n");
+m = 3;                          // Total Number of phase in Induction Motor
+p = 4;                          // Total number of Poles of Induction Motor
+f = 50;                         // Frequency in Hertz
+V = 440;                        // Operating Voltage of the Inductuon Motor
+out_hp = 20;                    // Motor Power Rating in Horse-Power 
+Vdc = 10;                       // DC Voltage in Volts
+Idc = 15;                       // DC Current in Amphere
+Wsc = 2500;                     // Power at Blocked Rotor test rated frequency in Watts
+Wsc_red = 2050;                 // Power at Blocked Rotor test reduced frequency in Watts
+Vsc = 110;                      // Voltage at Blocked Rotor test rated frequency in Volts
+Isc = 18;                       // Current at Blocked Rotor test rated frequency in Amphere
+Wo = 500;                       // Power at No-load test in Watts
+Vo = 440;                       // Voltage at No-load test in Volts
+Io = 4.0;                       // Current at No-load test in Amphere
+fsc = 50;                       // Rated Frequency at blocked rotor test in Hertz
+fo = 50;                        // Rated Frequency at no-load test in Hertz
+fsc1 = 15;                      // Reduced Frequency at blocked rotor in Hertz
+Pfw = 200;                      // Friction and Windage loss in Watts
+
+
+// CALCULATIONS
+
+R1dc = Vdc/Idc;                         // DC winding Resistance per phase in Ohms
+Rac = Wsc/(3*Isc^2);                    // AC Resistance from Locked rotor test at supply frequency
+Rac_red = Wsc_red/(3*Isc^2);            // AC Resistance from Locked rotor test at reduced frequency
+R1ac = (Rac/Rac_red)*R1dc;              // Corrected Value of AC stator winding Resistance in Ohms
+R2dc = Rac_red - R1dc;                  // Second rotor parameter, rotor resistance referred to stator is at low frequency in Ohms
+Zsc = Vsc/(sqrt(3)*Isc);                        // Per phase Impedance from locked rotor test at power frequency in Ohms
+Xs = sqrt((Zsc^2)-(Rac^2));                     // Per phase leakage Reactance referred to stator in Ohms
+theta_0 = acosd(Wo/(Vo*Io*sqrt(3)));            // No-load power factor angle in degree
+Im = Io*sind(theta_0);                          // Reactive component of no-load current in Amphere
+Xm = Vo/(Im*sqrt(3));                           // Magnetizing Reactance in Ohms
+Pc = Wo - 3*Io^2*R1ac-Pfw;                      // Total Core loss in Watts
+Rc = (Vo/sqrt(3))^2*(3/Pc);                     // Per phase core loss Resistance in Watts
+
+
+// DISPLAY RESULTS
+
+disp(" SOLUTION :-");
+printf("\n (a)  Magnetizing Reactance of Equivalent circuit, Xm = %.1f Ohms \n",Xm)
+printf("\n (b) Per phase core loss Resistance, Pc = %.f Ohms \n",Rc)