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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 1: INDUSTRIAL APPLICATIONS OF ELECTRIC MOTORS
+
+// EXAMPLE : 1.27 :
+// Page number 708
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+hp_1 = 200.0     // Motor load(hp)
+t_1 = 5.0        // Time of operation(min)
+hp_2 = 100.0     // Motor load(hp)
+t_2 = 10.0       // Time of operation(min)
+hp_3 = 0         // Motor load(hp)
+t_3 = 3.0        // Time of operation(min)
+
+// Calculations
+m = hp_1/t_1                                           // Slope of uniform rise power
+t_total = t_1+t_2+t_3                                  // Total time of operation(min)
+ans = integrate('(m*x)**2','x', 0, t_1)                // Integarted uniform area upto 5 min
+rms = ((ans+hp_2**2*t_2+hp_3**2*t_3)/t_total)**0.5     // rms horsepower
+
+// Results
+disp("PART IV - EXAMPLE : 1.27 : SOLUTION :-")
+printf("\nrms horsepower = %.1f HP. Therefore, a motor of %.f H.P should be selected", rms,rms+4)