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Diffstat (limited to '3871/CH7/EX7.15')
| -rw-r--r-- | 3871/CH7/EX7.15/Ex7_15.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/3871/CH7/EX7.15/Ex7_15.sce b/3871/CH7/EX7.15/Ex7_15.sce new file mode 100644 index 000000000..0686bcc01 --- /dev/null +++ b/3871/CH7/EX7.15/Ex7_15.sce @@ -0,0 +1,20 @@ +//===========================================================================
+//chapter 7 example 15
+clc;
+clear all;
+
+//variable declaration
+W1 = 300; //wattmeter reading in kW
+W2 = 100; //wattmeter reading in kW
+
+//calculations
+P = W1+W2; //input power in kW
+phi = atan(((W1-W2)/(W1+W2))*sqrt(3)); //phase angle in radians
+phi1 = (phi*180)/%pi;
+pf =cos((phi1*%pi)/180); //power factor lagging
+
+
+//result
+mprintf("input power = %3.2f kW",P);
+mprintf("power factor = %3.3f lagging",pf);
+
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