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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/EX5.3 | |
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initial commit / add all books
Diffstat (limited to '2642/CH5/EX5.3')
| -rwxr-xr-x | 2642/CH5/EX5.3/Ex5_3.sce | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/2642/CH5/EX5.3/Ex5_3.sce b/2642/CH5/EX5.3/Ex5_3.sce new file mode 100755 index 000000000..49b0f9c72 --- /dev/null +++ b/2642/CH5/EX5.3/Ex5_3.sce @@ -0,0 +1,24 @@ +// FUNDAMENTALS OF ELECTICAL MACHINES
+// M.A.SALAM
+// NAROSA PUBLISHING HOUSE
+// SECOND EDITION
+
+// Chapter 5 : DIRECT CURRENT MOTORS
+// Example : 5.3
+
+clc;clear; // clears the console and command history
+// Given data
+R_a = 0.7; // armature circuit resistance in Ω
+V_t = 5; // applied voltage in V
+I_anl = 5; // no-load armature current in A
+I_afl = 35; // full-load armature current in A
+
+
+// caclulations
+E_bnl = V_t - R_a*I_anl; // back emf under no-load in V
+E_bfl = V_t - R_a*I_afl; // back emf under full-load in V
+E_bc = E_bnl - E_bfl; // change in back emf from no-load to full load in V
+
+ // display the result
+disp("Example 5.3 solution");
+printf("\n The change in back emf is \n E_bc = %d V ",E_bc );
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