From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

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 1092/CH6/EX6.3/Example6_3.sce | 41 +++++++++++++++++++++++++++++++++++++++++
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+// Electric Machinery and Transformers
+// Irving L kosow 
+// Prentice Hall of India
+// 2nd editiom
+
+// Chapter 6: AC DYNAMO VOLTAGE RELATIONS-ALTERNATORS
+// Example 6-3
+
+clear; clc; close; // Clear the work space and console.
+
+// Given data
+// From Ex.6-1 and Ex.6-2 we have V_P and E_g values as follows
+// Note : approximated values are considered when root 3 value is taken as 1.73 
+// as in textbook
+V_P = 2660 ; // Phase voltage 
+E_g_a1 = 3836 ; // E_g at unity PF (Ex.6-1 case a)
+E_g_b1 = 4814 ; // E_g at 0.75 PF lagging (Ex.6-1 case b)
+ 
+E_g_a2 = 2364 ; // E_g at 0.75 PF leading (Ex.6-2 case a)
+E_g_b2 = 1315 ; // E_g at 0.40 PF leading (Ex.6-2 case b)
+
+// Calculations
+VR_a = ( E_g_a1 - V_P )/V_P * 100 ; // voltage regulation at unity PF  (Ex.6-1 case a)
+VR_b = ( E_g_b1 - V_P )/V_P * 100 ; // voltage regulation at 0.75 PF lagging (Ex.6-1 case b)
+
+VR_c = ( E_g_a2 - V_P )/V_P * 100 ; // voltage regulation at 0.75 PF leading (Ex.6-2 case a)
+VR_d = ( E_g_b2 - V_P )/V_P * 100 ; // voltage regulation at 0.40 PF leading (Ex.6-2 case b)
+
+// Display the results
+disp("Example 6-3 Solution : ");
+printf(" \n a: At unity PF : ");
+printf(" \n    VR = %.1f percent \n ", VR_a );
+
+printf(" \n b: At 0.75 PF lagging : ");
+printf(" \n    VR = %.2f percent \n ", VR_b );
+
+printf(" \n c: At 0.75 PF leading : ");
+printf(" \n    VR = %.2f percent \n ", VR_c );
+
+printf(" \n d: At 0.40 PF leading : ");
+printf(" \n    VR = %.1f percent \n ", VR_d );
-- 
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