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+// 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 7: PROTECTIVE RELAYS
+
+// EXAMPLE : 7.6 :
+// Page number 611
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+I_min = 0.1          // Relay minimum pick up current(A)
+slope = 10.0         // Slope characteristic(%)
+CT_ratio = 400.0/5   // CT ratio
+I_1 = 320.0          // Current(A)
+I_2 = 304.0          // Current(A)
+
+// Calculations
+I_op_coil = (I_1-I_2)/CT_ratio           // Current in operating coil(A)
+I_re_coil = 1.0*(I_1+I_2)/(2*CT_ratio)   // Current in restraining coil(A)
+I_re_coil_slope = I_re_coil*slope/100    // Current in restraining coil with slope(A)
+
+// Results
+disp("PART III - EXAMPLE : 7.6 : SOLUTION :-")
+if(I_op_coil<I_re_coil_slope) then
+    printf("\nRelay will not trip the circuit breaker")
+else then
+    print("\nRelay will trip the circuit breaker")
+end