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Diffstat (limited to '3811/CH10/EX10.3')
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diff --git a/3811/CH10/EX10.3/Ex10_3.jpg b/3811/CH10/EX10.3/Ex10_3.jpg Binary files differnew file mode 100644 index 000000000..7f787876a --- /dev/null +++ b/3811/CH10/EX10.3/Ex10_3.jpg diff --git a/3811/CH10/EX10.3/Ex10_3.sce b/3811/CH10/EX10.3/Ex10_3.sce new file mode 100644 index 000000000..554c51dfa --- /dev/null +++ b/3811/CH10/EX10.3/Ex10_3.sce @@ -0,0 +1,24 @@ +//Book Name: Fundamentals of electrical drives by Mohamad A. El- Sharkawi
+//chapter 10
+//example 10.3
+//edition 1
+//publishing place:Thomson Learning
+clc;
+clear;
+n1=1150;//full load speed in rpm
+V=300;//terminal voltage in volt
+f=80;//frequency in Hz
+Rr=0.5;//rotor resistance of the motor in ohm
+Xeq=3;//equivalent inductive reactance in ohm
+ns=1200;//nearest synchronous speed in rpm
+rpss=ns/60;
+omegas=(2*%pi*rpss);
+s1=(ns-n1)/ns;
+T6=(V^(2)*s1)/(omegas*Rr);//torque at the point 6
+T6=ceil(T6);
+mprintf("\nThe torque developed is %d Nm",T6)//approximated value
+s6=(T6*Rr*(-omegas))/V^(2);
+mprintf("\nThe slip is %f",s6)
+n6=(-ns)*(1-s6);
+mprintf("\nThe current of the induction motor does not surge to high value when the concurrent braking is implemented")
+
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