From 7bc77cb1ed33745c720952c92b3b2747c5cbf2df Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Sat, 3 Feb 2018 11:01:52 +0530 Subject: Added new code --- 3888/CH17/EX17.9/Ex17_9.JPG | Bin 0 -> 30377 bytes 3888/CH17/EX17.9/Ex17_9.sce | 39 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 39 insertions(+) create mode 100644 3888/CH17/EX17.9/Ex17_9.JPG create mode 100644 3888/CH17/EX17.9/Ex17_9.sce (limited to '3888/CH17/EX17.9') diff --git a/3888/CH17/EX17.9/Ex17_9.JPG b/3888/CH17/EX17.9/Ex17_9.JPG new file mode 100644 index 000000000..9235d79ff Binary files /dev/null and b/3888/CH17/EX17.9/Ex17_9.JPG differ diff --git a/3888/CH17/EX17.9/Ex17_9.sce b/3888/CH17/EX17.9/Ex17_9.sce new file mode 100644 index 000000000..c580787d5 --- /dev/null +++ b/3888/CH17/EX17.9/Ex17_9.sce @@ -0,0 +1,39 @@ +//Electric Power Generation, Transmission and Distribution by S.N.Singh +//Publisher:PHI Learning Private Limited +//Year: 2012 ; Edition - 2 +//Example 17.9 +//Scilab Version : 6.0.0 ; OS : Windows + +clc; +clear; + + +V=220; //Supply voltage in Volt +R=0.06; //Resistance in Ohm +X=0.1; //Reactance in Ohm/km +L=1; //Length of section AB and BC in km +IB=100*(0.8+%i*0.6); //Current at point B in Amps +IC=100*(1+%i*0); //Current at point C in Amps +ZBC=(R+%i*X); //Impedance of section BC in Ohm +ZAB=(R+%i*X); //Impedance of section AB in Ohm +BC=IC*ZBC; //Drop in section BC in Volt +VB=V+BC; //Potential at point B in Volt +I_AB=IB+IC; //Current in section AB in Amps +V_AB=(IB+IC)*ZAB; //Voltage drop in section AB Volt +VA=VB+V_AB; //Voltage at point A in Volt +VB1=V+BC; //Potential at point B in Volt +pfa=acosd(0.8); //Power factor angle of the load at point B +ref_ang=-pfa-atand(imag(VB1),real(VB1)); //Leading Power factor angle with reference to Vc +IB1=100*(cosd(ref_ang)+%i*sind(ref_ang)); //Current at point B in Amps +I_AB1=IB+IC; //Current in section AB in Amps +V_AB1=(IB+IC)*ZAB; //Voltage drop in section AB Volt +VA1=VB1+V_AB1; //Voltage at point A in Volt + + +printf("\nThe sending end voltage is %.2f Volt",abs(VA)); +printf("\nThe phase angle difference between the voltages of two ends is %.2f degree",atand(imag(VA),real(VA))); +printf("\npower factor of the loads are with reference to farther-end voltage is %.2f degree",pfa); +printf("\npower factor of the loads are with reference to the voltages at the load points is %.2f degree",-(ref_ang)); + + + -- cgit