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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3784/CH1/EX1.14/Ex1_14.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '3784/CH1/EX1.14/Ex1_14.sce')
| -rw-r--r-- | 3784/CH1/EX1.14/Ex1_14.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/3784/CH1/EX1.14/Ex1_14.sce b/3784/CH1/EX1.14/Ex1_14.sce new file mode 100644 index 000000000..c3e70dbca --- /dev/null +++ b/3784/CH1/EX1.14/Ex1_14.sce @@ -0,0 +1,29 @@ +clc
+// Variable Initialization
+Vm=230//Supply Voltage in Volts
+Ra=0.75//Armature circuit resistance in Ohm
+I=8 //Armature current in Amp
+Nr=1200 //Motor speed in Rpm
+Va=220//Rated voltage of motor in Volts
+a=45//firing angle in Degree
+T=8 //Motor torque in N-m
+Nr1=800 //Speed in Rpm
+
+
+//Solution
+N=(Nr*2*%pi)/60 //Speed in Rad/sec
+Kaf=(Va-I*Ra)/N //Motor Constant
+//(A) For torque of 8 N-m
+Ia=T/Kaf //Armature Current in Amp
+V=(2*Vm*1.414)*cosd(a)*(1/%pi)//Average voltage in Volts
+W=(V-Ia*Ra)/Kaf //Angular speed in Rad/sec
+N=(W*60)/(2*%pi) //Speed in Rpm
+//(B) a=45 Degree
+N1=(Nr1*2*%pi)/60 //Speed in Rad/sec
+Ia1=(V-Kaf*N1)/Ra //armature current in amp
+T1=Kaf*Ia1 //Torque in N-m
+
+//Results
+printf('\n\n The motor Speed =%0.1f RPM \n\n',N)
+printf('\n\n The motor Torque=%0.1f N-m \n\n',T1)
+//The answers vary due to round off error
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