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

---
 3472/CH27/EX27.8/Example27_8.sce | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 3472/CH27/EX27.8/Example27_8.sce

(limited to '3472/CH27/EX27.8/Example27_8.sce')

diff --git a/3472/CH27/EX27.8/Example27_8.sce b/3472/CH27/EX27.8/Example27_8.sce
new file mode 100644
index 000000000..9e5bfe023
--- /dev/null
+++ b/3472/CH27/EX27.8/Example27_8.sce
@@ -0,0 +1,32 @@
+// A Texbook on POWER SYSTEM ENGINEERING
+// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
+// DHANPAT RAI & Co.
+// SECOND EDITION 
+
+// PART III : SWITCHGEAR AND PROTECTION
+// CHAPTER 1: SYMMETRICAL SHORT CIRCUIT CAPACITY CALCULATIONS
+
+// EXAMPLE : 1.8 :
+// Page number 472
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+X_d_st = 0.2       // Sub-transient reactance(p.u)
+X_d_t = 0.4        // Transient reactance(p.u)
+X_d = 1.0          // Direct axis reactance(p.u)
+I_pu = 1.0         // Load current(p.u)
+PF = 0.80          // Lagging power factor
+
+// Calculations
+V = 1.0                     // Terminal voltage(p.u)
+sin_phi = (1-PF**2)**0.5
+I = I_pu*(PF-%i*sin_phi)    // Load current(p.u)
+E_st = V+%i*I*X_d_st        // Voltage behind sub-transient reactance(p.u)
+E_t = V+%i*I*X_d_t          // Voltage behind transient reactance(p.u)
+E = V+%i*I*X_d              // Voltage behind direct axis reactance(p.u)
+
+// Results
+disp("PART III - EXAMPLE : 1.8 : SOLUTION :-")
+printf("\nVoltage behind sub-transient reactance = %.2f∠%.2f° p.u", abs(E_st),phasemag(E_st))
+printf("\nVoltage behind transient reactance = %.2f∠%.2f° p.u", abs(E_t),phasemag(E_t))
+printf("\nVoltage behind direct axis reactance, E = %.2f∠%.2f° p.u", abs(E),phasemag(E))
-- 
cgit