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diff --git a/3811/CH5/EX5.6/Ex5_6.jpg b/3811/CH5/EX5.6/Ex5_6.jpg Binary files differnew file mode 100644 index 000000000..dcbfe3c1a --- /dev/null +++ b/3811/CH5/EX5.6/Ex5_6.jpg diff --git a/3811/CH5/EX5.6/Ex5_6.sce b/3811/CH5/EX5.6/Ex5_6.sce new file mode 100644 index 000000000..3caed4519 --- /dev/null +++ b/3811/CH5/EX5.6/Ex5_6.sce @@ -0,0 +1,17 @@ +//Book name: Fundamentals of electrical drives by Mohamad A. El- Sharkawi
+//chapter 5
+//example 5.6
+//edition 1
+//publisher and place:Nelson Engineering
+clc;
+clear;
+V=2300; //rated voltage of the synchronous motor in volt
+Vt=V/3^(1/2);
+f=60; //frequency in Hertz
+p=6; //number of poles
+Tl=5000; //constant torque of the load in Nm
+Xs=6; //synchronous reactance of the motor in ohm
+ns=(120*f)/p; //synchronous speed of the motor in rpm
+omegas=(2*%pi*ns)/60;
+Ef=(Tl*omegas*Xs)/(3*Vt); //The minimum excitation that machine must maintain to provide the needed torque
+disp(Ef,'The minimum excitation that machine must maintain to provide the needed torque in volt is:')
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