diff options
| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3760/CH6/EX6.55/Ex6_55.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 '3760/CH6/EX6.55/Ex6_55.sce')
| -rw-r--r-- | 3760/CH6/EX6.55/Ex6_55.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/3760/CH6/EX6.55/Ex6_55.sce b/3760/CH6/EX6.55/Ex6_55.sce new file mode 100644 index 000000000..07e3fee52 --- /dev/null +++ b/3760/CH6/EX6.55/Ex6_55.sce @@ -0,0 +1,20 @@ +clc;
+v=440; // rated voltage of distribution circuit
+im=1200; // maximum current that can be supplied
+n=0.85; // efficiency of induction motor
+pf=0.8; // power factor of motor
+ir=5; // ratio of starting current to full load current
+disp('case a');
+il=im/ir; //rated line current
+p=sqrt(3)*v*il*n*pf;
+printf('Maximum KW rating is %f KW\n',p/1000);
+disp('case b');
+x=0.8; // rated of applied voltage and stepped down voltage
+il=im/(x^2*ir); //rated line current
+p=sqrt(3)*v*il*n*pf;
+printf('Maximum KW rating is %f KW\n',p/1000);
+disp('case c');
+// star-delta converter is same as autotransformer starter with 57.8 % tapping therefore
+il=im/(0.578^2*ir); //rated line current
+p=sqrt(3)*v*il*n*pf;
+printf('Maximum KW rating is %f KW\n',p/1000);
|