diff options
Diffstat (limited to '3784/CH4/EX4.28/Ex4_28.sce')
| -rw-r--r-- | 3784/CH4/EX4.28/Ex4_28.sce | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/3784/CH4/EX4.28/Ex4_28.sce b/3784/CH4/EX4.28/Ex4_28.sce new file mode 100644 index 000000000..eaca7e805 --- /dev/null +++ b/3784/CH4/EX4.28/Ex4_28.sce @@ -0,0 +1,19 @@ +clc
+//Variable Initialisation
+Ea=210//Input Voltage of motor in volts
+Ia1=140//Armature Current in Ampere
+Ia2=2*Ia1
+Ra=0.08//Armature resistance in ohm
+N1=1100//Rated Speed of Motor in rpm
+N2=1200//Rated Speed of Motor in rpm
+//Solution
+Eb1=Ea-(Ia1*Ra)
+Eb2=(N2/N1)*Eb1
+Rb=((Eb2+Ea)/Ia2)-Ra
+W=(2*%pi*N2)/60
+T1=(Eb2*Ia2)/W
+Ia3=Ea/(Ra+Rb)
+T2=T1*(Ia3/Ia2)
+printf('\n\n Resistance to be placed=%0.1f ohm\n\n',Rb)
+printf('\n\n Braking torque=%0.1f N-m\n\n',T1)
+printf('\n\n torque=%0.1f N-m\n\n',T2)//The answers vary due to round off error
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