1 files changed, 26 insertions, 0 deletions
diff --git a/3784/CH4/EX4.31/Ex4_31.sce b/3784/CH4/EX4.31/Ex4_31.sce
new file mode 100644
index 000000000..9e0d880e9
--- /dev/null
+++ b/3784/CH4/EX4.31/Ex4_31.sce
@@ -0,0 +1,26 @@
+clc
+//Variable Initialisation
+Ea=230//Input Voltage of motor in volts
+Ia=200//Armature Current in Ampere
+Ra=0.02//Armature resistance in ohm
+N1=960//Rated Speed of Motor in rpm
+N2=350//Rated Speed of Motor in rpm
+N4=1200//Rated Speed of Motor in rpm
+d3=0.95
+//Solution
+Ia2=2*Ia
+Eb1=Ea-(Ia*Ra)
+Eb2=(N2/N1)*Eb1
+E01=Eb2+(Ia*Ra)
+d1=E01/Ea
+Ea2=Eb2-(Ia*Ra)
+d2=Ea2/Ea
+Eam=d3*Ea
+P=Eam*Ia2
+Eb3=Eam+(Ia2*Ra)
+N3=(Eb3/Eb1)*N1
+Ifr=(N1/N4)
+printf('\n\n Duty ratio for motoring operation=%0.1f\n\n',d1)
+printf('\n\n Duty ratio for braking operation=%0.1f\n\n',d2)
+printf('\n\n Maximum permissible motor Speed=%0.1f rpm\n\n',N3)
+printf('\n\n Field Current as Ratio of its rated value=%0.1f\n\n',Ifr)