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

---
 431/CH4/EX4.30/EX4_30.sce | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100755 431/CH4/EX4.30/EX4_30.sce

(limited to '431/CH4/EX4.30/EX4_30.sce')

diff --git a/431/CH4/EX4.30/EX4_30.sce b/431/CH4/EX4.30/EX4_30.sce
new file mode 100755
index 000000000..de6765011
--- /dev/null
+++ b/431/CH4/EX4.30/EX4_30.sce
@@ -0,0 +1,27 @@
+//Calculate full load rotor loss and rotor input and output torque
+//Chapter 4
+//Example 4.30
+//page 345
+clear;
+clc; 
+disp("Example 4.30")
+hp=20;                    //power in horsepower
+f=50;                    //frequency in hertz
+P=4;                    //number of poles
+Ns=(120*f)/P;                //synchronous speed
+printf("Synchronous speed,Ns=%drpm",Ns);
+S=0.04;                            //slip
+Nr=Ns*(1-S);
+OP=hp*735.5;
+printf("\nOutput power=%fW",OP);
+OT=OP/(2*3.14*(Nr/60));
+printf("\nOutput torque=%fNm",OT);
+FL=0.02*OP;          //Friction and windage loss
+PD=OP+FL;
+printf("\nPower developed by the rotor=%fW",PD);
+//from relation, (rotor I^2R-loss=S*Rotor input) we get following relation 
+RL=(S*PD)/(1-S);        
+printf("\nRotor I^2R-loss=%fW",RL);
+RI=RL/S;
+printf("\nRotor input=%dW",RI)
+
-- 
cgit