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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 IV : UTILIZATION AND TRACTION
+// CHAPTER 6: MOTORS FOR ELECTRIC TRACTION
+
+// EXAMPLE : 6.4 :
+// Page number 791
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+F_t = 33800.0   // Tractive effort(N)
+V = 48.3        // Velocity(kmph)
+T = 53400.0     // Tractive effort(N)
+
+// Calculations
+HP = F_t*V*1000/(60*60*746)    // HP on level track(hp)
+HP_i = HP*(T/F_t)**0.5         // hp delivered by locomotive for dc series motor(hp)
+HP_ii = HP*T/F_t               // hp delivered by locomotive for induction motor(hp)
+
+// Results
+disp("PART IV - EXAMPLE : 6.4 : SOLUTION :-")
+printf("\nhp delivered by the locomotive when dc series motor is used = %.f HP", HP_i)
+printf("\nhp delivered by the locomotive when induction motor is used = %.f HP", HP_ii)