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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/CH5/EX5.2 | |
| 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 '2642/CH5/EX5.2')
| -rwxr-xr-x | 2642/CH5/EX5.2/Ex5_2.sce | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/2642/CH5/EX5.2/Ex5_2.sce b/2642/CH5/EX5.2/Ex5_2.sce new file mode 100755 index 000000000..580dcc0de --- /dev/null +++ b/2642/CH5/EX5.2/Ex5_2.sce @@ -0,0 +1,26 @@ +// FUNDAMENTALS OF ELECTICAL MACHINES
+// M.A.SALAM
+// NAROSA PUBLISHING HOUSE
+// SECOND EDITION
+
+// Chapter 5 : DIRECT CURRENT MOTORS
+// Example : 5.2
+
+clc;clear; // clears the console and command history
+// Given data
+I = 20 // total current in A
+V_t = 250; // supply voltage in volt
+R_sh = 200; // shunt field resistance in Ω
+R_a = 0.3; // armature resistance in Ω
+
+// caclulations
+ I_sh = V_t/R_sh; // shunt field current in A
+ I_a = I-I_sh' // armature current
+ E_b = V_t - R_a*I_a; // the back emf in V
+ P_md = E_b*I_a; // mechanical power developed in W
+
+ // display the result
+disp("Example 5.2 solution");
+printf("\n The back emf is \n E_b = %.1f V \n\n",E_b );
+printf(" \n Mechanical power developed is \n P_md = %.1f W" ,P_md );
+printf(" \n NOTE : error in calculation they has taken I_a=18.13, instead of I_a=18.75");
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