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// Example 9.3
// Determine (a) Frequency of generator A (b) Frequency of generator B
// (c) Frequency of bus
// Page 358
clc;
clear;
close;
// Given data
GSR=0.020; // Governor speed regulation
Frated=60; // Rated frequency
deltaPa=100; // Change in load (200-100 =100 KW)
Prated=500; // Rated power of both generators
// (a) Frequency of generator A
deltaFa=(GSR*Frated*deltaPa)/Prated; // Change in frequency due to change in load
Fa=Frated+deltaFa; // Frequency of generator A
// (b) Frequency of generator B
deltaFb=0.24; // Since both machines are identical
Fb=Frated-deltaFb;
// (c) Frequency of bus
Fbus=Fb; // Bus frequency is frequency of generator B
// Display result on command window
printf("\n Frequency of generator A = %0.2f Hz ",Fa);
printf("\n Frequency of generator B = %0.2f Hz ",Fb);
printf("\n Frequency of bus = %0.2f Hz ",Fbus);
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