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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/CH4/EX4.10 | |
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| -rwxr-xr-x | 2642/CH4/EX4.10/Ex4_10.sce | 30 |
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diff --git a/2642/CH4/EX4.10/Ex4_10.sce b/2642/CH4/EX4.10/Ex4_10.sce new file mode 100755 index 000000000..66839a973 --- /dev/null +++ b/2642/CH4/EX4.10/Ex4_10.sce @@ -0,0 +1,30 @@ +// FUNDAMENTALS OF ELECTICAL MACHINES
+// M.A.SALAM
+// NAROSA PUBLISHING HOUSE
+// SECOND EDITION
+
+// Chapter 4 : DIRECT CURRENT GENERATORS
+// Example : 4.10
+
+clc;clear; // clears the console and command history
+
+// Given data
+Pw = 12 // power in kW
+P = 4 // number of poles
+Z = 500 // number of conductors
+V_t = 250 // generator voltage in V
+N = 1000 // speed in rpm
+P_cu = 600 // full load copper loss in W
+brush_drop = 2 // brush drop in V
+
+// caclulations
+A = 4 // for lab wound A=P
+I_a = Pw*10^3/V_t // armature current in A
+R_a = P_cu/I_a^2 // from copper loss equestion R_a in ohm
+E_g = V_t+I_a*R_a+brush_drop // generated voltage in V
+phi = E_g*60*A/(P*Z*N) // flux per pole in Wb
+
+
+// display the result
+disp("Example 4.10 solution");
+printf(" \n Flux per pole \n phi = %.3f Wb \n", phi );
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