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Diffstat (limited to '3872/CH7/EX7.1')
| -rw-r--r-- | 3872/CH7/EX7.1/EX7_1.jpg | bin | 0 -> 25856 bytes | |||
| -rw-r--r-- | 3872/CH7/EX7.1/EX7_1.sce | 18 |
2 files changed, 18 insertions, 0 deletions
diff --git a/3872/CH7/EX7.1/EX7_1.jpg b/3872/CH7/EX7.1/EX7_1.jpg Binary files differnew file mode 100644 index 000000000..48a835927 --- /dev/null +++ b/3872/CH7/EX7.1/EX7_1.jpg diff --git a/3872/CH7/EX7.1/EX7_1.sce b/3872/CH7/EX7.1/EX7_1.sce new file mode 100644 index 000000000..5f5f08e1d --- /dev/null +++ b/3872/CH7/EX7.1/EX7_1.sce @@ -0,0 +1,18 @@ +//Book - Power System: Analysis & Design 5th Edition
+//Authors - J. Duncan Glover, Mulukutla S. Sarma, and Thomas J. Overbye
+//Chapter - 7 ; Example 7.1
+//Scilab Version - 6.0.0 ; OS - Windows
+clc;
+clear;
+V = 20; //short ciruit voltage in kV
+X = 8; //short circuit inductance in ohm
+R = 0.8; //short ciruit resistance in ohm
+t = 3; //no. of cycles after fault inception
+Iac = V/(sqrt((X^2)+(R^2)))*1 //rms ac fault current in kA
+K = sqrt(1+ (2*%e^(-4*%pi*(0.5)/10))); //asymmetry factor for 0.5 cycles
+Imom = K*Iac; //rms momentart current at t=0.5 cycle in kA
+K = sqrt(1+ (2*%e^(-4*%pi*(3)/10))); //asymmetry factor for 3 cycles
+Irms = K*Iac; //rms asymmetrical fault current in kA
+printf('\n The rms ac fault current Iac = %f kA',Iac);
+printf('\n The rms momentary current at o.5 cycle Imom = %f kA',Imom);
+printf('\n The rms asymmetrical fault current Irms = %f kA',Irms);
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