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authorprashantsinalkar2017-10-10 12:27:19 +0530
committerprashantsinalkar2017-10-10 12:27:19 +0530
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+// Calculating the number of stator turns per phase
+clc;
+disp('Example 10.15, Page No. = 10.44')
+// Given Data
+// 3 phase star connected induction motor
+P = 75;// Power rating (in kw)
+V = 3000;// Voltage rating
+f = 50;// Frequency (in Hz)
+p = 8;// Number of poles
+AT60 = 500;// mmf required for flux density at 30 degree from pole axis
+Kws = 0.95;// Winding factor
+e = 0.94;// Full load efficiency
+pf = 0.86;// Full load power factor
+// Calculation of the number of stator turns per phase
+I = P*10^(3)/(3^(1/2)*V*e*pf);// Full load current (in ampere)
+Im = 0.35*I;// Magnetizing current (in Ampere). Since magnetizing current is 35% of full load current
+Ts = 0.427*p*AT60/(Kws*Im);// Stator turns per phase
+disp(Ts,'Stator turns per phase =');
+//in book answer is 288. The answers vary due to round off error