diff options
Diffstat (limited to '3802/CH7/EX7.6/Ex7_6.sce')
| -rw-r--r-- | 3802/CH7/EX7.6/Ex7_6.sce | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/3802/CH7/EX7.6/Ex7_6.sce b/3802/CH7/EX7.6/Ex7_6.sce new file mode 100644 index 000000000..71032962c --- /dev/null +++ b/3802/CH7/EX7.6/Ex7_6.sce @@ -0,0 +1,24 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex7_6.sce.
+
+clc;
+clear;
+//the given data are taken from previous example(Ex7_5)
+
+Vp=6600; //primary voltage in V
+Vs=440; //secondary voltage in V
+rp=0.45; //primary winding resistance in ohms
+rs=0.0015; //secondary winding resistance in ohms
+Wi=2.9e3; //iron loss in watt
+pf=0.8; //power factor lagging
+
+Re=rp+(Vp/Vs)^2*rs; //equivalent resistance referred to primary
+Ip=sqrt(Wi/Re);
+P_max=Vp*Ip*pf;
+total_loss=2*Wi;
+Max_efficiency=(P_max/(P_max+total_loss))*100;
+printf("\n Maximum Efficiency=%2.2f percentage \n",Max_efficiency)
|