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

---
 695/CH3/EX3.30/Ex3_30.sce | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100755 695/CH3/EX3.30/Ex3_30.sce

(limited to '695/CH3/EX3.30/Ex3_30.sce')

diff --git a/695/CH3/EX3.30/Ex3_30.sce b/695/CH3/EX3.30/Ex3_30.sce
new file mode 100755
index 000000000..5bff79b9e
--- /dev/null
+++ b/695/CH3/EX3.30/Ex3_30.sce
@@ -0,0 +1,21 @@
+//Caption:Find the Efficiency and voltage regulation of transformer
+//Exa:3.30
+clc;
+clear;
+close;
+P_i=100;//in watts
+V2=400;//in volts
+P_sc=200;//in watts
+I_2=11.4;//in amperes
+R_O2=P_sc/I_2^2;//in ohms
+KVA=5;
+I_2fl=KVA*1000/V2;
+P_cu=I_2fl^2*R_O2;
+pf=0.9;
+Eff=KVA*1000*pf/(KVA*1000*pf+P_cu+P_i);
+disp(Eff*100,'Efficiency (in %)=');
+V_2sc=40;//in volts
+Z_O2=V_2sc/I_2;
+X_O2=sqrt(Z_O2^2-R_O2^2);
+VR=I_2fl*(R_O2*pf+X_O2*sqrt(1-pf^2))/V2;
+disp(VR*100,'Voltage Regulation (in %)=')
\ No newline at end of file
-- 
cgit