diff options
Diffstat (limited to '3784/CH4/EX4.44/Ex4_44.sce')
| -rw-r--r-- | 3784/CH4/EX4.44/Ex4_44.sce | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/3784/CH4/EX4.44/Ex4_44.sce b/3784/CH4/EX4.44/Ex4_44.sce new file mode 100644 index 000000000..4783b1ee0 --- /dev/null +++ b/3784/CH4/EX4.44/Ex4_44.sce @@ -0,0 +1,18 @@ +clc
+//Variable Initialisation
+Eb2=215//Average Value of Back EMF
+Ia=300//Armature Current in Ampere
+Ia1=310//Armature Current in Ampere
+Ra=0.04//Armature resistance in ohm
+N1=610//Rated Speed of Motor in rpm
+N2=750//Rated Speed of Motor in rpm
+dmin=0.05//Minimum Duty Ratio
+//Solution
+Eb1=(N2/N1)*Eb2
+Rbe=(Eb1/Ia)-Ra
+Rb=Rbe/(1-dmin)
+R=Rb*(1-dmin)+Ra
+K=Eb2/(2*%pi*N1/60)//The answer provided in the textbook is wrong
+T=K*Ia
+printf('\n\n Value of Braking Resistor=%0.1f ohm\n\n',Rb)
+printf('\n\n Maximum Available Motor Torque=%0.1f N-m\n\n',T)
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