Values recorded in the experiment:

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Evaluation :

Question $1$: 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.