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Diffstat (limited to '3784/CH4/EX4.3/Ex4_3.sce')
| -rw-r--r-- | 3784/CH4/EX4.3/Ex4_3.sce | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/3784/CH4/EX4.3/Ex4_3.sce b/3784/CH4/EX4.3/Ex4_3.sce new file mode 100644 index 000000000..9783db294 --- /dev/null +++ b/3784/CH4/EX4.3/Ex4_3.sce @@ -0,0 +1,25 @@ +clc
+//Variable Initialisation
+Ia=50//Armature Current in Ampere
+Ea=440//Input Voltage to armature in volts
+N=1000//Rated Speed of Motor in rpm
+Ra=0.5//Armature resistance in ohm
+Ra1=10.5//Armature resistance in ohm
+Rf=100//Field resistance in ohm
+N1=400//Speed of Motor in rpm
+N2=800//Speed of Motor in rpm
+ton=2*10^(-3)
+//Solution
+If=Ea/Rf
+Eb=Ea-(Ia*Ra)
+Eb1=(N1/N)*Eb
+E01=Eb1+(Ia*Ra1)
+t1=(Ea/E01)*2*10^3
+f1=1/t1
+Eb2=(N2/N)*Eb
+E02=Eb2+(Ia*Ra)
+t2=(Ea/E02)*ton
+f2=1/t2
+printf('\n\n The Chopping Frequency 1=%0.1f\n\n',f1)
+printf('\n\n The Chopping Frequency 2=%0.1f\n\n',f2)
+//The answers vary due to round off error
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