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author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
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committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /147/CH14/EX14.30 | |
parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '147/CH14/EX14.30')
-rw-r--r-- | 147/CH14/EX14.30/Example14_30.sce | 18 | ||||
-rw-r--r-- | 147/CH14/EX14.30/Result14_30.txt | 1 |
2 files changed, 19 insertions, 0 deletions
diff --git a/147/CH14/EX14.30/Example14_30.sce b/147/CH14/EX14.30/Example14_30.sce new file mode 100644 index 000000000..9e8186c40 --- /dev/null +++ b/147/CH14/EX14.30/Example14_30.sce @@ -0,0 +1,18 @@ +//Rated Power Pr, Synchronous reactance Xs, Armature resistance Ra
+//Power factor Pf
+close();
+clear;
+clc;
+Pr = 10000;//VA
+V = 230;//V
+Xs = 1.2;//ohm per phase
+Ra = 0.5;//ohm
+Pf = 0.8;//lagging
+Vt = V/sqrt(3);
+theta = acos(Pf);
+Ia = (Pr/3)/Vt;
+Zs = Ra + %i*Xs;
+theta = atan(imag(Zs),real(Zs));
+phi = acos(-polar(Ia*Zs)^2/(2*polar(Ia*Zs)*Vt)) - theta;
+Pf2 = cos(phi);
+mprintf('Power factor for zero regulation = %0.3f leading',Pf2);
diff --git a/147/CH14/EX14.30/Result14_30.txt b/147/CH14/EX14.30/Result14_30.txt new file mode 100644 index 000000000..75ef0313b --- /dev/null +++ b/147/CH14/EX14.30/Result14_30.txt @@ -0,0 +1 @@ +Power factor for zero regulation = 0.869 leading
\ No newline at end of file |