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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 /2642/CH9/EX9.8 | |
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initial commit / add all books
Diffstat (limited to '2642/CH9/EX9.8')
| -rwxr-xr-x | 2642/CH9/EX9.8/Ex9_8.sce | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/2642/CH9/EX9.8/Ex9_8.sce b/2642/CH9/EX9.8/Ex9_8.sce new file mode 100755 index 000000000..b567cefa8 --- /dev/null +++ b/2642/CH9/EX9.8/Ex9_8.sce @@ -0,0 +1,27 @@ +// FUNDAMENTALS OF ELECTICAL MACHINES
+// M.A.SALAM
+// NAROSA PUBLISHING HOUSE
+// SECOND EDITION
+
+// Chapter 9 : SYNCHRONOUS GENERATOR
+// Example : 9.8
+
+clc;clear; // clears the console and command history
+
+// Given data
+kVA = 50 // kVA ratings
+V_t = 220 // terminal voltage in V
+R_a = 0.011 // effective resistance in ohm
+X_s = 0.09 // synchronous reactance in ohm
+
+// caclulations
+phi = acosd(0.85) // since power factor in 0.85
+I_a = kVA*10^3/V_t // armature current in A
+E_f = sqrt((V_t*cosd(phi)+I_a*R_a)^2+(V_t*sind(phi)+I_a*X_s)^2) // induced voltage per phase in V
+VR = ((E_f-V_t)/V_t)*100 // voltage regulation
+
+// display the result
+disp("Example 9.8 solution");
+printf(" \n No-load induced voltage per phase \n E_f = %.1f V \n", E_f );
+printf(" \n Voltage regulation is \n VR = %.1f percent \n", VR );
+
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