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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 /431/CH3/EX3.10/EX3_10.sce | |
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initial commit / add all books
Diffstat (limited to '431/CH3/EX3.10/EX3_10.sce')
| -rwxr-xr-x | 431/CH3/EX3.10/EX3_10.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/431/CH3/EX3.10/EX3_10.sce b/431/CH3/EX3.10/EX3_10.sce new file mode 100755 index 000000000..35121871f --- /dev/null +++ b/431/CH3/EX3.10/EX3_10.sce @@ -0,0 +1,29 @@ +//Calculating primary current and primary power factor
+//Chapter 3
+//Example 3.10
+//page 211
+clear;
+clc;
+disp("Example 3.10")
+V1=6600; //primary voltage in volts
+V2=240; //secondary voltage in volts
+kW1=10; //power
+phi1=acosd(0.8);
+I2=50; //current in amperes
+kW3=5; //power
+phi2=acosd(0.7)
+kVA=8; //rating
+phi4=acosd(0.6)
+I1=(kW1*1000)/(cosd(phi1)*V2);
+I3=(kW3*1000)/(1*V2);
+I4=(kVA*1000)/V2;
+Ih=((I1*cosd(phi1))+(I2*cosd(phi2))+I3+(I4*cosd(phi4)));
+Iv=((I1*sind(phi1))+(I2*sind(phi2))-(I4*sind(phi4)));
+I5=sqrt((Ih^2)+(Iv^2))
+printf("I5=%dA",I5)
+Ip=(I5*V2)/V1;
+printf("\nThe current drawn by the primary from 6600Vmains is equal to,Ip=%fA",Ip);
+phi=atand(Iv/Ih);
+printf("\n
+power factor=%flagging",cosd(phi))
+
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