1 files changed, 24 insertions, 0 deletions
diff --git a/1938/CH5/EX5.5/5_5.sce b/1938/CH5/EX5.5/5_5.sce
new file mode 100755
index 000000000..dedeac2b1
--- /dev/null
+++ b/1938/CH5/EX5.5/5_5.sce
@@ -0,0 +1,24 @@
+clc,clear
+printf('Example 5.5\n\n')
+
+V_OC_line=230,I_asc=12.5  // when I_f=0.38
+V_OC_ph=V_OC_line/sqrt(3)
+Z_s=V_OC_ph/I_asc 
+
+R_a=1.8/2  //1.8 is between terminals..0.9 is per phase
+X_s=sqrt(Z_s^2-R_a^2)
+
+I_a=10// when regulation is needed
+V_L=230
+V_ph=V_L/sqrt(3)
+
+//Part(i)
+phi1=acos(0.8) //and lagging
+E_ph1=sqrt((V_ph*cos(phi1)+I_a*R_a)^2+(V_ph*sin(phi1)+I_a*X_s)^2)
+regulation1=100*(E_ph1-V_ph)/V_ph
+printf('Regulation for 10 A at 0.8 lagging pf is %.2f percent\n',regulation1)
+//Part(ii)
+phi2=acos(0.8) //and leading
+E_ph2=sqrt((V_ph*cos(phi2)+I_a*R_a)^2+(V_ph*sin(phi2)-I_a*X_s)^2)
+regulation2=100*(E_ph2-V_ph)/V_ph
+printf('Regulation for 10 A at 0.8 leading pf is %.2f percent\n',regulation2)