1 files changed, 26 insertions, 0 deletions
diff --git a/3472/CH34/EX34.5/Example34_5.sce b/3472/CH34/EX34.5/Example34_5.sce
new file mode 100644
index 000000000..a360a492f
--- /dev/null
+++ b/3472/CH34/EX34.5/Example34_5.sce
@@ -0,0 +1,26 @@
+// A Texbook on POWER SYSTEM ENGINEERING
+// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
+// DHANPAT RAI & Co.
+// SECOND EDITION 
+
+// PART III : SWITCHGEAR AND PROTECTION
+// CHAPTER 8: PROTECTION OF ALTERNATORS AND AC MOTORS
+
+// EXAMPLE : 8.5 :
+// Page number 625-626
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+MVA = 50.0           // Alternator rating(MVA)
+V = 33.0*10**3       // Alternator voltage(V)
+CT_ratio = 2000.0/5  // CT ratio
+R = 7.5              // Resistor earthed generator neutral(ohm)
+I = 0.5              // Current above which pick up current(A)
+
+// Calculations
+I_min = CT_ratio*I           // Minimum current required to operate relay(A)
+x = I_min*R/(V/3**0.5)*100   // Winding unprotected during normal operation(%)
+
+// Results
+disp("PART III - EXAMPLE : 8.5 : SOLUTION :-")
+printf("\nWinding of each phase unprotected against earth when machine operates at nominal voltage, x = %.2f percent", x)