diff options
Diffstat (limited to '3784/CH4/EX4.48/Ex4_48.sce')
| -rw-r--r-- | 3784/CH4/EX4.48/Ex4_48.sce | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/3784/CH4/EX4.48/Ex4_48.sce b/3784/CH4/EX4.48/Ex4_48.sce new file mode 100644 index 000000000..3f274a09e --- /dev/null +++ b/3784/CH4/EX4.48/Ex4_48.sce @@ -0,0 +1,21 @@ +clc
+//Variable Initialisation
+Ia1=86//Armature Current in Ampere
+Ra=0.25//Armature resistance in ohm
+N1=1000//Rated Speed of Motor in rpm
+N2=850//Rated Speed of Motor in rpm
+Eb1=220//Average Value of Back EMF
+dmin=0.5//Minimum Duty Ratio
+dmax=0.95//Maximum Duty Ratio
+//Solution
+Eb2=(N1/N2)*Eb1
+Rbe=(Eb2/Ia1)-Ra
+Rb=Rbe/(1-dmin)
+R=Rb*(1-dmax)+Ra
+Eb3=Ia1*R
+Eb4=190
+Ia2=55
+K=Eb4/(2*%pi*N2/60)
+T=K*Ia2
+printf('\n\n 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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