Repeat Problem 12.7 if the frequency decreases by 0.005 per unit. Determine the MW increase of each unit.

Problem 12.7

Each unit in Problem 12.5 is initially operating at one-half its own rating when the frequency increases by 0.005 per unit. Determine the MW decrease of each unit. The reference power setting of each turbinegovernor is fixed. Neglect losses and the dependence of load on frequency.