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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /1892/CH1/EX1.69 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '1892/CH1/EX1.69')
| -rwxr-xr-x | 1892/CH1/EX1.69/Example1_69.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/1892/CH1/EX1.69/Example1_69.sce b/1892/CH1/EX1.69/Example1_69.sce new file mode 100755 index 000000000..6f2e85cf7 --- /dev/null +++ b/1892/CH1/EX1.69/Example1_69.sce @@ -0,0 +1,29 @@ +// Example 1.69
+
+clc;clear;close;
+
+// Given data
+format('v',7);
+P=6;//no. of poles
+f1=50;//in Hz
+f2=1.5;//in Hz
+Zo=150;//useful Torque in N-m
+FrictionLoss=10;//in N-m
+Psc=700;//stator loss in watt
+
+//calculations
+Ns=120*f1/P;//in rpm
+S=f2/f1;//slip
+Nr=(1-S)*Ns;//in rpm
+wr=2*%pi*Nr/60;//in rad/sec
+Po=Zo*wr;//in watts
+Pmd=(Zo+FrictionLoss)*wr;//in watts
+//Part (a)
+Prc=S/(1-S)*Pmd;//in watts
+disp(Prc/1000,"(a) Rotor Copper Loss in KW : ");
+//Part (b)
+Pi=Pmd+Prc+Psc;//in watts
+disp(Pi/1000,"(b) Input to the motor in KW : ");
+//Part (c)
+Eff=Po/Pi;//Effiiency
+disp(Eff*100,"(d) Efficiency in % : ");
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