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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
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| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /1445/CH7/EX7.38/ch7_ex_38.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '1445/CH7/EX7.38/ch7_ex_38.sce')
| -rw-r--r-- | 1445/CH7/EX7.38/ch7_ex_38.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/1445/CH7/EX7.38/ch7_ex_38.sce b/1445/CH7/EX7.38/ch7_ex_38.sce new file mode 100644 index 000000000..a9988b934 --- /dev/null +++ b/1445/CH7/EX7.38/ch7_ex_38.sce @@ -0,0 +1,29 @@ +//CHAPTER 7- SINGLE PHASE TRANSFORMER +//Example 38 + +disp("CHAPTER 7"); +disp("EXAMPLE 38"); + +//VARIABLE INITIALIZATION +v1=220; //primary voltage in Volts +v2=115; //secondary voltage in Volts +f1=25; +f2=50; +//loads +V=440 +We1=100; //in Watts at 220 V, eddy losses +Pc1=2*We1; //Total iron losses which equals We+Wh due to eddy and hysteresis +Wh1=Pc1-We1; +// +//SOLUTION +//since we know that We=kh.f.B^1.6 and Wh=Ke.Kf^2.f^2.B^2 +//since all being constant exept frequency, we may take We2/We1=f2^2/f1^2 +//and Wh2/Wh1=f2/f1 +//find values for We2 and Wh2, whence Pc2=We2+Wh2 +We2=f2^2*We1/f1^2; +Wh2=f2*Wh1/f1; +Pc2=We2+Wh2; +disp(sprintf("The total no load losses at 400 V is %f W",Pc2)); +disp(" "); +// +//END |