Question 567Steam Plants - Assistant Engineer70% to pass
If two turbo-generators with the same no-load speed settings are operating in parallel, the unit whose governor has the lesser speed droop will _______________.
AI Explanation
The correct answer is D) assume the larger share of the load.
When two turbo-generators with the same no-load speed settings are operating in parallel, the unit whose governor has the lesser speed droop will assume the larger share of the load. This is because the governor with the lesser speed droop will have a steeper frequency-power characteristic, causing it to pick up more load when the system frequency drops. In contrast, the unit with the greater speed droop will have a flatter frequency-power characteristic, causing it to pick up less load when the system frequency drops.
The other answer choices are incorrect because: A) the unit with the lesser speed droop will have better power response, not poor power response; B) the unit with the lesser speed droop will have better sensitivity characteristics, not poor sensitivity characteristics; and C) the unit with the lesser speed droop will assume the larger share of the load, not the smaller share.
Related Questions
#565 When starting a turbo-generator, you must provide lube oil pressure to the governor power piston by means of _______________.#566 Which of the listed parts illustrated in the turbo-generator governing system, provides the follow-up to prevent the nozzle valves from cycling between the fully open and fully closed positions, with each variation in turbine speed? Illustration SE-0009 #568 A pilot valve and servomotor are utilized in mechanical-hydraulic governing systems on a turbo-generator unit in order to _______________.#569 A back pressure trip on a ship's service turbo-generator functions to trip the turbine under what circumstance? #570 Which of the listed actions will occur when there is an increase in load on a ship service generator equipped with a centrifugal type hydraulic governor? Illustration SE-0009