If the load reduces to 400 MW, how will it be shared among the generators and what will the system frequency be? Assume free governor system. The speed changers of the governors are reset so that the load of 400 MW is shared among the generators at 50 Hz in the ratio of their ratings. What are the no-load frequencies of the generators ?

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Two Generators rated 200 MW and 400 MW are
operating in parallel. The droop characteristics of
their governor are 4 % and 5% respectively fro no
load to full load. The speed changers are so set
the governor operate at 50 Hz sharing the full
load of 600 MW, in the ratio of their ratings.
If the load reduces to 400 MW, how will it be
shared among the generators and what will the
system frequency be? Assume free governor
system. The speed changers of the governors are
reset so that the load of 400 MW is shared among
the generators at 50 Hz in the ratio of their
ratings. What are the no-load frequencies of the
generators ?
Transcribed Image Text:Two Generators rated 200 MW and 400 MW are operating in parallel. The droop characteristics of their governor are 4 % and 5% respectively fro no load to full load. The speed changers are so set the governor operate at 50 Hz sharing the full load of 600 MW, in the ratio of their ratings. If the load reduces to 400 MW, how will it be shared among the generators and what will the system frequency be? Assume free governor system. The speed changers of the governors are reset so that the load of 400 MW is shared among the generators at 50 Hz in the ratio of their ratings. What are the no-load frequencies of the generators ?
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