From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

---
 3574/CH3/EX3.6/EX3_6.sce | 66 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 3574/CH3/EX3.6/EX3_6.sce

(limited to '3574/CH3/EX3.6/EX3_6.sce')

diff --git a/3574/CH3/EX3.6/EX3_6.sce b/3574/CH3/EX3.6/EX3_6.sce
new file mode 100644
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+// Example 3.6
+// Determine the percent of the total bank-current drawn by each transformer 
+// Page No. 109
+
+clc;
+clear;
+close;
+
+// Given data
+ZaPU_R=0.0158;          // Transformer A impedance real part
+ZaPU_I=0.0301;          // Transformer A impedance imaginary part
+ZbPU_R=0.0109;          // Transformer B impedance real part
+ZbPU_I=0.0398;          // Transformer B impedance imaginary part
+SB=200000;             // Transformer B rating
+VHSA=2400;             // Voltage at the high side of transformer A
+VHSB=2400;             // Voltage at the high side of transformer B
+RPUA=1.64;             // Percent resistance of transformer A
+XPUA=3.16;             // Percent reactance of transformer A
+RPUB=1.10;             // Percent resistance of transformer B
+XPUB=4.03;             // Percent reactance of transformer B
+
+
+
+// Base impedance of transformer A
+ZaPU=ZaPU_R+%i*ZaPU_I;
+// Complex to Polar form...
+ZaPU_Mag=sqrt(real(ZaPU)^2+imag(ZaPU)^2);      // Magnitude part
+ZaPU_Ang=atan(imag(ZaPU),real(ZaPU))*180/%pi;  // Angle part

+
+// Base impedance of transformer B
+ZbPU=ZbPU_R+%i*ZbPU_I;
+// Complex to Polar form...
+ZbPU_Mag=sqrt(real(ZbPU)^2+imag(ZbPU)^2);      // Magnitude part
+ZbPU_Ang=atan(imag(ZbPU),real(ZbPU))*180/%pi;  // Angle part

+
+// Admittance of transformer A
+YaPU_Mag=1/ZaPU_Mag;                // Magnitude of equivalent admittance A
+YaPU_Ang=0-ZaPU_Ang;                // Angle of equivalent admittance A
+
+// Polar to Complex form
+
+YaPU_R=YaPU_Mag*cos(-YaPU_Ang*%pi/180); // Real part of complex number
+YaPU_I=YaPU_Mag*sin(YaPU_Ang*%pi/180); //Imaginary part of complex number
+
+// Admittance of transformer B
+YbPU_Mag=1/ZbPU_Mag;                // Magnitude of equivalent admittance B
+YbPU_Ang=0-ZbPU_Ang;                // Angle of equivalent admittance B
+// Polar to Complex form
+
+YbPU_R=YbPU_Mag*cos(-YbPU_Ang*%pi/180); // Real part of complex number
+YbPU_I=YbPU_Mag*sin(YbPU_Ang*%pi/180); //Imaginary part of complex number
+
+// Parallel admittance
+YP=(YaPU_R-%i*YaPU_I)+(YbPU_R-%i*YbPU_I);
+// Complex to Polar form...
+YP_Mag=sqrt(real(YP)^2+imag(YP)^2);      // Magnitude part
+YP_Ang=atan(imag(YP),real(YP))*180/%pi;  // Angle part

+
+IA=YaPU_Mag/YP_Mag*100;                  // Percent current drawn by transformer A 
+IB=100-IA; 
+
+// Display the result on the command window
+printf("\n Percent of total bank current drawn by transformer A = %0.2f Percent ",IA);
+printf("\n Percent of total bank current drawn by transformer B = %0.2f Percent ",IB);
+
+
-- 
cgit