initial commit / add all books

2 files changed, 21 insertions, 0 deletions

diff --git a/3681/CH5/EX5.13/Ans5_13.PNG b/3681/CH5/EX5.13/Ans5_13.PNG
new file mode 100644
index 000000000..9e6f37822
--- /dev/null
+++ b/3681/CH5/EX5.13/Ans5_13.PNG
diff --git a/3681/CH5/EX5.13/Ex5_13.sce b/3681/CH5/EX5.13/Ex5_13.sce
new file mode 100644
index 000000000..601315a10
--- /dev/null
+++ b/3681/CH5/EX5.13/Ex5_13.sce
@@ -0,0 +1,21 @@
+// Calculating the leakage reactance of the transformer referred to the h.v. side

+clc;

+disp('Example 5.13, Page No. = 5.89')

+// Given Data

+// 6600/400 V, delta/star 3-phase core type transformer

+Q = 300;// kVA rating

+f = 50;// Frequency (in Hz)

+u0 = 4*%pi*10^(-7);

+Tp = 830;// h.v winding turns

+Lmt = 0.9;// Length of mean turn (in meter)

+Lc = 0.5;// Height of coils (in meter)

+a = 0.015;// Width of duct between h.v and l.v. windings (in meter)

+bp = 0.025;// Width of h.v. winding (in meter)

+bs = 0.016;// Width of l.v. winding (in meter)

+// Calculation of the leakage reactance of the transformer referred to the h.v. side

+Xp = 2*%pi*f*u0*Tp*Tp*Lmt/Lc*(a+(bp+bs)/3);// Leakage reactance referred to the primary side (ohm)

+disp(Xp,'(a) Leakage reactance referred to the primary side (ohm)=');

+// If the l.v. winding divided into two parts, one on each side of h.v. winding

+Xp = %pi*f*u0*Tp*Tp*Lmt/Lc*(a+(bp+bs)/6);// Leakage reactance referred to the primary side (ohm)

+disp(Xp,'(b) Leakage reactance referred to the primary side (ohm)=');

+//in book answers are 14 ohm and 5.36 ohm respectively.  The answers vary due to round off error