1 files changed, 19 insertions, 0 deletions
diff --git a/3760/CH1/EX1.55/Ex1_55.sce b/3760/CH1/EX1.55/Ex1_55.sce
new file mode 100644
index 000000000..bf33cccaa
--- /dev/null
+++ b/3760/CH1/EX1.55/Ex1_55.sce
@@ -0,0 +1,19 @@
+clc;
+k=100; // Kva rating of transformer
+disp('case(a)');
+l1=90; // KVA rating of load
+pf=0.8; // lagging pf of load
+z=0.0075+0.09*%i; // p u leakage impedance of transformer
+l1=l1/k; // load expressed in p u with base KVA=100
+vd=l1*(real(z)*pf+imag(z)*sqrt(1-pf^2)); // p u voltage regulation
+ts=vd*100; // tap setting
+printf('Number of turns in the primary winding should be tapped down by %f percent\n',ts);
+disp('case(b)');
+lk=100; // KW rating of load
+pf=0.8; // lagging pf of load
+l1=lk/pf; // KVA rating of load
+z=0.0075+0.09*%i; // p u leakage impedance of transformer
+l1=l1/k; // load expressed in p u with base KVA=100
+vd=l1*(real(z)*pf+imag(z)*sqrt(1-pf^2)); // p u voltage regulation
+ts=vd*100; // tap setting
+printf('Number of turns in the primary winding should be tapped down by %f percent\n',ts);