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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 II : TRANSMISSION AND DISTRIBUTION
+// CHAPTER 10: POWER SYSTEM STABILITY
+
+// EXAMPLE : 10.18 :
+// Page number 305
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+MVA = 210.0           // Rating of generator(MVA)
+P = 2.0               // Number of poles
+f = 50.0              // Frequency(Hz)
+MI = 60.0*10**3       // Moment of inertia(kg-mt^2)
+
+// Calculations
+N = 120.0*f/P                            // Speed(r.p.m)
+KE = 1.0/2*MI*(2*%pi*N/f)**2/10**6       // Energy stored in the rotor at rated speed(MJ)
+H = KE/MVA                               // Inertia constant(MJ/MVA)
+G = MVA
+M = G*H/(180*f)                          // Angular momentum(MJ-sec/elect.degree)
+
+// Results
+disp("PART II - EXAMPLE : 10.18 : SOLUTION :-")
+printf("\nEnergy stored in the rotor at the rated speed, KE = %.2e MJ", KE)
+printf("\nValue of inertia constant, H = %.2f MJ/MVA", H)
+printf("\nAngular momentum, M = %.3f MJ-sec/elect.degree", M)