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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 /3760/CH1/EX1.34/Ex1_34.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '3760/CH1/EX1.34/Ex1_34.sce')
| -rw-r--r-- | 3760/CH1/EX1.34/Ex1_34.sce | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/3760/CH1/EX1.34/Ex1_34.sce b/3760/CH1/EX1.34/Ex1_34.sce new file mode 100644 index 000000000..0961f106a --- /dev/null +++ b/3760/CH1/EX1.34/Ex1_34.sce @@ -0,0 +1,26 @@ +clc;
+P=5000; // rated VA of transformer
+pc=40; // core loss , it remains fixed for whole day
+poh=100; // ohmic losses
+// data for duration 7 A.M to 1 P.M
+p1=3000; // power consumed
+pf1=0.6 // power factor of load
+pk1=p1/pf1; // VA load
+poh1=poh*(pk1/P)^2; // ohmic losses for given duration
+// data for duration 1 P.M to 6 P.M
+p2=2000; // power consumed
+pf2=0.8 // power factor of load
+pk2=p2/pf2; // VA load
+poh2=poh*(pk2/P)^2; // ohmic losses for given duration
+// data for duration 6 P.M to 1 A.M
+p3=6000; // power consumed
+pf3=0.9 // power factor of load
+pk3=p3/pf3; // VA load
+poh3=poh*(pk3/P)^2; // ohmic losses for given duration
+// data for duration 1 A.M to 7 A.m =no load
+poht=poh1*6+poh2*5+poh3*7; // energy lost in ohmic losses
+pct=(pc*24); // daily energy lost as core loss
+ptl=poht+pct; // total energy lost
+po=p1*6+p2*5+p3*7; // output
+n=(1-(ptl/(ptl+po)))*100;
+printf('All day efficiency is %f percent',n);
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