Two generators rated 200Mw and 400MW are operating in parallel. The droop
characteristics of their governors are 4% and 5% respectively from no load to full
load. The speed changes are so set that the generators operate at 50Hz sharing the
load of600Mw in the ratio of their ratings. If the load reduces to 400Mw, how will
it be shared among the generators and what will the system frequency? Assume
free governor operation. The speed changers of the governors are reset so that the
load of 400MW is shared among the generators at 50Hz in the ratio of their ratings.
What are the no load frequencies of the generators?
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