2.A power station consists of four 100-MVA, 69-kV, 0.9-PF lagging synchronous generators operatingin parallel with identical speed droop characteristics. The governors on the generators' prime moversare adjusted to produce a 3-Hz drop from no load to full load. Three of these generators are eachsupplying a steady 75 MW at a frequency of 60 Hz, while the fourth generator handles allincremental load changes on system while maintaining the system's frequency at 60 Hz.
【題組】(a)The total system loads are 260 MW at a frequency of 60 Hz. Calculate the no-load frequencies ofeach generator. (10%)