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Calculate the coefficient of fluctuation of speed using the data: Vmax(Fluctuation)=25 m/sec, Vmean=12 m/sec.

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Calculate the coefficient of fluctuation of speed using the data: Vmax(Fluctuation)=25 m/sec, Vmean=12 m/sec.

(a) 2.08

(b) 2.16

(c) 2.34

(d) 2.74

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This interesting question is from Solid-State Switching Circuits in division Introduction to Solid-State Switching Circuits of Electric Drives

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The correct choice is (a) 2.08

To explain: The coefficient of fluctuation of speed is the ratio of the maximum fluctuation speed and mean speed. C.F = Vmax(Fluctuation) ÷ Vmean = 25÷12 = 2.08.

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