diff options
| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /147/CH14/EX14.33/Example14_33.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '147/CH14/EX14.33/Example14_33.sce')
| -rw-r--r-- | 147/CH14/EX14.33/Example14_33.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/147/CH14/EX14.33/Example14_33.sce b/147/CH14/EX14.33/Example14_33.sce new file mode 100644 index 000000000..d8593ac97 --- /dev/null +++ b/147/CH14/EX14.33/Example14_33.sce @@ -0,0 +1,29 @@ +close();
+clear;
+clc;
+Il = 50; //A
+pf1 = 0.707;
+V1 = 220; //V
+Xs = 1.27; //ohm
+P2 = 33*1000; //kV
+phia = 30; //degree
+phia_rad = phia*%pi/180; //rad
+//(a)
+//power developed per phase 'Pd'
+Pd = P2/3;
+Vo = sqrt(3)*Pd*Xs*sin(phia_rad)/V1; //V
+//by parallel connections
+Vt = V1/sqrt(3);
+//from isosceles triangle
+d = (90-phia)/2;
+//motor reactive power 'Q'
+Q = 3*(Vt^2)*sin(phia_rad)/Xs; //VAr
+mprintf("(a) Reactive power of motor, Q = %d kVAr\n\n",Q/1000);
+
+//(b)
+Ia = Vt/Xs;
+phil = -45; //degree
+phil_rad = phil*%pi/180; //rad
+//overall power factor 'pf'
+pf = cos(atan((Ia*sin(phia_rad) + Il*sin(phil_rad))/(Ia*cos(phia_rad) + Il*cos(phil_rad))));
+mprintf("(b) The overall power factor = %0.3f",pf);
\ No newline at end of file |