Questicn 1: Why do we keep the speed of ihe synchronous generator constant at no-load? What happens if the speed varies? Explain your observations. Question 2: Why does not the generator voltage increase when the excitation current (le) increases over the nominal value? Question 3:Explain the voltage at the terminals of the generator when the speed is at

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Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Questicn 1: Why do we keep the speed of the synchronous generator constant at no-load?
What happens if the speed varies? Explain your observations.
Question 2: Why does not the generator voltage increase when the excitation current (le)
increases over the nominal value?
Question 3:Explain the voltage at the terminals of the generator when the speed is at
rated value (1500 rpm) but the excitation current is zero (le=0). What happens if we touch
the terminals of the generator at this instance?
Question 4: Do we observe a voltage at the output if we reverse the direction of the
excitation current? Why? Explain.
Question 5: Sketch and analyze the no-load operation curve of the generator using the
values recorded in the experiment.
Question 6: State your final observations about the experiment.
Transcribed Image Text:Questicn 1: Why do we keep the speed of the synchronous generator constant at no-load? What happens if the speed varies? Explain your observations. Question 2: Why does not the generator voltage increase when the excitation current (le) increases over the nominal value? Question 3:Explain the voltage at the terminals of the generator when the speed is at rated value (1500 rpm) but the excitation current is zero (le=0). What happens if we touch the terminals of the generator at this instance? Question 4: Do we observe a voltage at the output if we reverse the direction of the excitation current? Why? Explain. Question 5: Sketch and analyze the no-load operation curve of the generator using the values recorded in the experiment. Question 6: State your final observations about the experiment.
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