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+// Example 5.21
+// Computation of Inductance and voltage rating of each series connected 
+// inductor required to limit the starting current to approximately 2*Irated. 
+// Page No. 236
+
+clc;
+clear all;
+close;
+
+// Given data
+KVA=6.7;                    // Average locked rotor KVA/hp
+hp=7.5;                     // Motor horsepower
+Vline=208;                  // Line voltage
+I=48;                       // Total current
+Rlr=0.294;                  // Locked rotor resistance
+Xlr=0.809;                  // Locked rotor impedance
+f=60;                       // Frequency of motor
+
+// Corresponding approximate load current
+Ilr=KVA*1000*hp/(sqrt(3)*Vline);      
+Vphase=Vline/sqrt(3);            // Voltage/phase
+
+// Applying ohm's law to one phase
+Zlr=Vphase/Ilr;               // Impedance
+Xex=sqrt((Vphase^2/I^2)-(Rlr^2))-Xlr;
+L=Xex/(2*%pi*f);
+L=L*10^03;
+VXl=I*Xex;
+
+// Display result on command window
+printf("\n The inductance of each series connected inductor = %0.2f mH ",L);
+printf("\n The voltage rating of each series connected inductor = %0.1f V ",VXl);
+
+