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

---
 2252/CH23/EX23.17/Ex23_17.sce | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100755 2252/CH23/EX23.17/Ex23_17.sce

(limited to '2252/CH23/EX23.17')

diff --git a/2252/CH23/EX23.17/Ex23_17.sce b/2252/CH23/EX23.17/Ex23_17.sce
new file mode 100755
index 000000000..60f980197
--- /dev/null
+++ b/2252/CH23/EX23.17/Ex23_17.sce
@@ -0,0 +1,38 @@
+
+function[z]=pol2rect(r,theta)
+    x=r*cos(theta)
+    y=r*sin(theta)
+    z=x+y*%i
+endfunction
+function[r]=mag(A)
+    x=real(A)
+    y=imag(A)
+    r=sqrt(x^2+y^2)
+endfunction
+
+j=%i
+R1=.15//per phase stator winding resistance
+//block rotor test
+Vb=133/sqrt(3)//per phase voltage
+Ib=100//per phase current
+Wb=8085/3//per phase power
+Zb=Vb/Ib//per phase impedance
+Rb=Wb/Ib^2//per phase resistance
+Xb=sqrt(Zb^2-Rb^2)//per phase reactance
+R2_dash=Rb-R1//per phase rotor resistance referred to stator
+X2_dash=Xb/2//per phase rotor reactance referred to stator
+X1=X2_dash//per phase stator leakage reactance
+//no load test
+Vo=400/sqrt(3)//per phase voltage
+Io=20//per phase current
+Wo=2080/3//per phase power
+pf=Wo/(Vo*Io)//power factor
+phi0=acos(pf)
+Iw=Io*cos(phi0)
+Im=-Io*sin(phi0)*j
+Io=pol2rect(Io,-phi0)
+Z1=R1+X1*j
+Ro=(Vo-Io*Z1)/Iw
+Xm=(Vo-Io*Z1)/Im
+mprintf("Equivalent circuit parameters are\nR1=%f ohm;\nX1=%f ohm;\nR2_dash=%f ohm;\nX2_dash=%f ohm;\nRo=%f ohm;\nXm=%f ohm",R1,X1,R2_dash,X2_dash,mag(Ro),mag(Xm))
+
-- 
cgit