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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3731/CH4/EX4.6/Ex4_6.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '3731/CH4/EX4.6/Ex4_6.sce')
| -rw-r--r-- | 3731/CH4/EX4.6/Ex4_6.sce | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/3731/CH4/EX4.6/Ex4_6.sce b/3731/CH4/EX4.6/Ex4_6.sce new file mode 100644 index 000000000..01954b05b --- /dev/null +++ b/3731/CH4/EX4.6/Ex4_6.sce @@ -0,0 +1,30 @@ +//Chapter 4: Selection of Motor Power Rating
+//Example 6
+clc;
+
+//Variable Initialization
+I=500 //Eated Armature Current in A
+Ra=0.01 //Armature Resistance in ohm
+P=1000 //Core Loss in W
+B=0.5
+
+//Duty Cycles
+tst=10 //Given Interval for accelaration at twice the rated current
+tr=10 //Given Interval for running at full load
+tb=10 //Given Interval for deceleration at twice the rated armature current
+
+//Solution
+
+Es=tst*(2*I)**2*Ra+P
+Eb=Es
+p1s_tr=(I**2*Ra+P)*tr
+p1r=I**2*Ra+P
+gamma=(1+B)/2
+x=(Es+p1s_tr+Eb)/p1r
+y=gamma*tst+tr+gamma*tb
+ts=(x-y)/B //Idling interval
+
+fmax=3600/(tst+tr+tb+ts) //Maximum Frequency of drive operation
+
+mprintf("\nMaximum Frequency of drive operation = %.2f per hour",fmax)
+//The answer provided in the textbook is wrong
|