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/CH33/EX33.2/Example33_2.sce | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 3472/CH33/EX33.2/Example33_2.sce

(limited to '3472/CH33/EX33.2/Example33_2.sce')

diff --git a/3472/CH33/EX33.2/Example33_2.sce b/3472/CH33/EX33.2/Example33_2.sce
new file mode 100644
index 000000000..6ba042a37
--- /dev/null
+++ b/3472/CH33/EX33.2/Example33_2.sce
@@ -0,0 +1,27 @@
+// 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 7: PROTECTIVE RELAYS
+
+// EXAMPLE : 7.2 :
+// Page number 596
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+ratio = 525.0/1     // CT ratio
+CT_sec = 1.0        // Secondary turn
+t_mult = 0.3        // Time multiplier setting
+I_f = 5250.0        // Fault current(A)
+
+// Calculations
+I_sec_fault = I_f/ratio            // Secondary fault current(A)
+PSM = I_sec_fault/(1.25*CT_sec)    // Plug setting multiplier
+t = 3.15                           // Time against this PSM(sec). From graph E7.1 in textbook page no 595
+time_oper = t*t_mult               // Operating time(sec)
+
+// Results
+disp("PART III - EXAMPLE : 7.2 : SOLUTION :-")
+printf("\nTime of operation of the relay = %.3f sec", time_oper)
-- 
cgit