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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 /3802/CH10/EX10.10/Ex10_10.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 '3802/CH10/EX10.10/Ex10_10.sce')
| -rw-r--r-- | 3802/CH10/EX10.10/Ex10_10.sce | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/3802/CH10/EX10.10/Ex10_10.sce b/3802/CH10/EX10.10/Ex10_10.sce new file mode 100644 index 000000000..1d9d2e551 --- /dev/null +++ b/3802/CH10/EX10.10/Ex10_10.sce @@ -0,0 +1,40 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//EX10_10.sce.
+clc;
+clear;
+sf=0.04;
+If=37.5;
+f=50;
+p=4;
+V=400;
+P_in_HP=25;
+z=2.8;
+P_in_watt=P_in_HP*735.5;
+Nf=((120*f)/p)*(1-sf);
+nf=Nf/60;
+Tf=P_in_watt/(2*%pi*nf);
+Isc_phase=V/z;
+Isc=sqrt(3)*Isc_phase;
+
+printf("\n (i) Using Direct switching")
+Ist=Isc;
+printf("\n \t The starting current=%3.2f A",Ist)
+Tst=(Isc/If)^2*sf*Tf;
+printf("\n \t The starting torque=%3.1f Nm \n",Tst)
+
+printf("\n (ii) Using Star delta connector")
+Ist=(1/3)*Isc;
+printf("\n \t The starting current=%3.2f A",Ist)
+Tst=(1/3)*(Isc/If)^2*sf*Tf;
+printf("\n \t The starting torque=%3.1f Nm \n",Tst)
+
+printf("\n (iii) Using auto transformer")
+k=0.7;
+Ist=k^2*Isc;
+printf("\n \t The starting current=%3.2f A",Ist)
+Tst=k^2*(Isc/If)^2*sf*Tf;
+printf("\n \t The starting torque=%3.1f Nm \n",Tst)
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