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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 /3811/CH5/EX5.2/Ex5_2.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3811/CH5/EX5.2/Ex5_2.sce')
| -rw-r--r-- | 3811/CH5/EX5.2/Ex5_2.sce | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/3811/CH5/EX5.2/Ex5_2.sce b/3811/CH5/EX5.2/Ex5_2.sce new file mode 100644 index 000000000..18c9d91cf --- /dev/null +++ b/3811/CH5/EX5.2/Ex5_2.sce @@ -0,0 +1,22 @@ +//Book name: Fundamentals of electrical drives by Mohamad A. El- Sharkawi
+//chapter 5
+//example 5.2
+//edition 1
+//publisher and place:Nelson Engineering
+clc;
+clear;
+l=50; //load in hp
+f=60; //frequency in hertz
+n=1764; //full load speed in rpm
+ns=1800; //synchronous speed of motor in rpm
+Pr=.950; //rotational loss in kilowatts
+Pcu=1.600; //stator copper loss in kilowatt
+Pi=1.200; //iron loss in kilowatt
+Pout=l/1.34; //output power at full load is 50 hp in kilowatt
+Pd=Pout+Pr; //power developed in kilowatt
+s=(ns-n)/ns; //slip of the motor
+Pg=Pd/(1-s);
+Pin=Pg+Pcu+Pi; //input power in kilowatt
+efficiency=Pout/Pin; //motor efficiency
+efficiency=efficiency*100;//efficiency in percentage
+mprintf("The efficiency of the motor is %d percentage",efficiency)
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