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Diffstat (limited to '3681/CH3/EX3.13/Ex3_13.sce')
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1 files changed, 19 insertions, 0 deletions
diff --git a/3681/CH3/EX3.13/Ex3_13.sce b/3681/CH3/EX3.13/Ex3_13.sce new file mode 100644 index 000000000..be0189b29 --- /dev/null +++ b/3681/CH3/EX3.13/Ex3_13.sce @@ -0,0 +1,19 @@ +// Calculating the hysteresis loss
+clc;
+disp('Example 3.13, Page No. = 3.35')
+// Given Data
+Bm = 1.0;// Maximum flux density in Wb per meter square
+f = 50;// Frequency in Hz
+SGi = 7.5;// Specific gravity of iron
+ph = 4.9;// Hysterseis loss in W per Kg
+// Calculation of co-efficient 'n'
+Di = 7500;// Density of iron
+n = ph/(Di*f*(Bm^(1.7)));//
+disp(n,'(a) co-efficient (n)=');
+//in book answer is 1307*10^(-6). The answers vary due to round off error
+// Calculation of hysteresis loss
+Bm = 1.8;// Maximum flux density in Wb per meter square
+f = 25;// Frequency in Hz
+ph = n*f*Di*Bm^(1.7);// Hysterseis loss in W per Kg
+disp(ph,'(b) Hysterseis loss(W per Kg)=');
+//in book answer is 6.66 W per Kg. The answers vary due to round off error
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