diff options
Diffstat (limited to '3888/CH14')
| -rw-r--r-- | 3888/CH14/EX14.1/Ex14_1.JPG | bin | 0 -> 17600 bytes | |||
| -rw-r--r-- | 3888/CH14/EX14.1/Ex14_1.sce | 32 | ||||
| -rw-r--r-- | 3888/CH14/EX14.2/Ex14_2.JPG | bin | 0 -> 16409 bytes | |||
| -rw-r--r-- | 3888/CH14/EX14.2/Ex14_2.sce | 38 | ||||
| -rw-r--r-- | 3888/CH14/EX14.4/Ex14_4.JPG | bin | 0 -> 23982 bytes | |||
| -rw-r--r-- | 3888/CH14/EX14.4/Ex14_4.sce | 24 |
6 files changed, 94 insertions, 0 deletions
diff --git a/3888/CH14/EX14.1/Ex14_1.JPG b/3888/CH14/EX14.1/Ex14_1.JPG Binary files differnew file mode 100644 index 000000000..fc502e627 --- /dev/null +++ b/3888/CH14/EX14.1/Ex14_1.JPG diff --git a/3888/CH14/EX14.1/Ex14_1.sce b/3888/CH14/EX14.1/Ex14_1.sce new file mode 100644 index 000000000..8ba96a1f3 --- /dev/null +++ b/3888/CH14/EX14.1/Ex14_1.sce @@ -0,0 +1,32 @@ +//Electric Power Generation, Transmission and Distribution by S.N.Singh
+//Publisher:PHI Learning Private Limited
+//Year: 2012 ; Edition - 2
+//Example 14.1
+//Scilab Version : 6.0.0 ; OS : Windows
+
+clc;
+clear;
+
+
+
+d=600; //Distance between three conductors in cm
+b=72; //Pressure in Hg
+r=1; //Radius of the conductor in cm
+t=27; //Air temperature in Celcius
+m=0.90; //Irregularity factor
+mv=0.82; //Surface factor
+adf=3.92*b/(273+t); //Air density factor
+Vc=r*21.1*m*0.9408*log(d/r); //Phase to neutral critical disruptive voltage in kV
+cdv=Vc*sqrt(3); //Line to line critical disruptive voltage in kV
+Vv=21.1*mv*r*0.9408*(1+(0.3/sqrt(r*0.9408)))*log(d/r); //Critical visual disruptive voltage
+cvdv=Vv*sqrt(3); //Line to line critical visual disruptive voltage in kV
+
+
+printf("\nThe critical disruptive voltage is %.2f kV",cdv);
+printf("\nThe visual critical disruptive voltage is %.2f kV",cvdv);
+
+
+
+
+
+
diff --git a/3888/CH14/EX14.2/Ex14_2.JPG b/3888/CH14/EX14.2/Ex14_2.JPG Binary files differnew file mode 100644 index 000000000..4aed844b0 --- /dev/null +++ b/3888/CH14/EX14.2/Ex14_2.JPG diff --git a/3888/CH14/EX14.2/Ex14_2.sce b/3888/CH14/EX14.2/Ex14_2.sce new file mode 100644 index 000000000..465af125e --- /dev/null +++ b/3888/CH14/EX14.2/Ex14_2.sce @@ -0,0 +1,38 @@ +//Electric Power Generation, Transmission and Distribution by S.N.Singh
+//Publisher:PHI Learning Private Limited
+//Year: 2012 ; Edition - 2
+//Example 14.2
+//Scilab Version : 6.0.0 ; OS : Windows
+
+clc;
+clear;
+
+
+V=220; //Supply voltage in kV
+f=50; //Supply frequency in Hz
+r=1; //Radius of the conductor in cm
+d=400; //Distance between the conductor in cm
+m=0.96; //Smooth surface value of conductor
+b=73; //Barometric pressure in cm of Hg
+t=20; //Temperature in celcius
+adf=3.92*b/(273+t); //Air density factor
+Vc=r*21.1*m*0.9767*log(d/r); //Phase to neutral critical disruptive voltage in kV
+Vp=V/sqrt(3); //Line phase voltage in kV
+Pc=241*10^(-5)*(f+25)/0.9767*sqrt(r/d)*(Vp-Vc)^(2); //Peek's formula for corona loss in a fair weather in kW/phase/km
+Pc1=241*10^(-5)*(f+25)/0.9767*sqrt(r/d)*(Vp-0.8*Vc)^(2); //Peek's formula for corona loss in a rainy weather in kW/phase/km
+
+
+printf("\nThe fair weather corona loss is %.2f kW/phase/km",Pc);
+printf("\nThe rainy weather corona loss is %.2f kW/phase/km",Pc1);
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/3888/CH14/EX14.4/Ex14_4.JPG b/3888/CH14/EX14.4/Ex14_4.JPG Binary files differnew file mode 100644 index 000000000..4065694f0 --- /dev/null +++ b/3888/CH14/EX14.4/Ex14_4.JPG diff --git a/3888/CH14/EX14.4/Ex14_4.sce b/3888/CH14/EX14.4/Ex14_4.sce new file mode 100644 index 000000000..b11406f6a --- /dev/null +++ b/3888/CH14/EX14.4/Ex14_4.sce @@ -0,0 +1,24 @@ +//Electric Power Generation, Transmission and Distribution by S.N.Singh
+//Publisher:PHI Learning Private Limited
+//Year: 2012 ; Edition - 2
+//Example 14.4
+//Scilab Version : 6.0.0 ; OS : Windows
+
+clc;
+clear;
+
+
+f=50; //Supply frequency in Hz
+I=150; //Power line current in Amps
+dac=1.8; //Spacing between conductors a and d in m
+dab=2.5; //Spacing between conductors a and b in m
+dcd=1; //Spacing between conductors c and d in m
+Dad=sqrt((dac)^(2)+((dab/2)+(dcd/2))^(2)); //Distance between conductors a and d in m
+Dac=sqrt((dac)^(2)+((dab/2)-(dcd/2))^(2)); //Distance between conductors a and c in m
+M=4*10^(-4)*log(Dad/Dac); //Mutual inductance in H/km/ph
+X=2*%pi*f*M; //Inductive reactance in per km
+emf=I*X; //Emf induced in telephone line in V/km
+
+printf("\nThe mutual inductance between the powerline and the telephone line %.1e H/km/ph",M);
+printf("\nThe 50 Hz voltage per kilometre induced in the telephone line when the power line carries 150 A is %.2f V/km",emf);
+
|
