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Diffstat (limited to '3681/CH8/EX8.5')
| -rw-r--r-- | 3681/CH8/EX8.5/Ans8_5.PNG | bin | 0 -> 4588 bytes | |||
| -rw-r--r-- | 3681/CH8/EX8.5/Ex8_5.sce | 14 |
2 files changed, 14 insertions, 0 deletions
diff --git a/3681/CH8/EX8.5/Ans8_5.PNG b/3681/CH8/EX8.5/Ans8_5.PNG Binary files differnew file mode 100644 index 000000000..ee475d521 --- /dev/null +++ b/3681/CH8/EX8.5/Ans8_5.PNG diff --git a/3681/CH8/EX8.5/Ex8_5.sce b/3681/CH8/EX8.5/Ex8_5.sce new file mode 100644 index 000000000..6225abdb8 --- /dev/null +++ b/3681/CH8/EX8.5/Ex8_5.sce @@ -0,0 +1,14 @@ +// Calculating the inertia constant of the generator
+clc;
+disp('Example 8.5, Page No. = 8.14')
+// Given Data
+P = 500;// Power rating (in MW)
+f = 50;// Frequency (in Hz)
+J = 50*10^(3);// Moment of inertia (in kg-meter square)
+pf = 0.85;// Power factor
+// Calculation of the inertia constant of the generator
+w = 2*%pi*f;// Angular speed (in rad/s)
+Q = 500*10^(3)/pf;// kVA rating
+H = (1/2)*J*w*w/(Q*10^(3));// Inertia constant (in seconds)
+disp(H,'Inertia constant (seconds)=');
+//in book answer is 4.2 seconds. The answers vary due to round off error
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